![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Approximate epicenters of the earthquakes in 1968
| |||
Strongest magnitude | ![]() | ||
---|---|---|---|
Deadliest | ![]() | ||
Total fatalities | 12,081 | ||
Number by magnitude | |||
9.0+ | 0 | ||
This is a list of earthquakes in 1968. Only magnitude 6.0 or greater earthquakes appear on the list. Lower magnitude events are included if they have caused death, injury or damage. Events which occurred in remote areas will be excluded from the list as they wouldn't have generated significant media interest. All dates are listed according to UTC time. Maximum intensities are indicated on the Mercalli intensity scale and are sourced from United States Geological Survey (USGS) ShakeMap data. There was a large resurgence in activity in 1968. 22 magnitude 7.0+ earthquakes struck various parts of the planet. The largest of these was a magnitude 8.2 event in Japan in May. Large aftershocks struck the area following the mainshock. New Zealand and Indonesia had some upheaval during the year. The high activity contributed to over 12,000 deaths across the world. The vast majority of this total was caused by a destructive event in Iran in August with nearly 10,500 deaths. Events in the Philippines, Italy and Indonesia also had significant fatalities.
Overall
By death toll
Rank | Death toll | Magnitude | Location | MMI | Depth (km) | Date |
---|---|---|---|---|---|---|
1 | 10,488 | 7.1 | ![]() |
IX (Violent) | 10.0 | August 31 |
2 | 700 | 6.2 | ![]() |
VIII (Severe) | 15.0 | September 1 |
3 | 270 | 7.6 | ![]() |
IX (Violent) | 25.0 | August 1 |
4 | 216 | 6.4 | ![]() |
X (Extreme) | 10.0 | January 15 |
5 | 200 | 7.2 | ![]() |
IX (Violent) | 20.0 | August 14 |
6 | 52 | 8.2 | ![]() |
VIII (Severe) | 29.9 | May 16 |
7 | 38 | 5.3 | ![]() |
VII (Very strong) | 34.0 | April 29 |
8 | 24 | 6.3 | ![]() |
VII (Very strong) | 20.0 | September 3 |
= 9 | 20 | 7.2 | ![]() |
X (Extreme) | 15.0 | February 19 |
= 9 | 20 | 6.0 | ![]() |
IV (Light) | 124.8 | September 25 |
10 | 18 | 7.3 | ![]() |
VIII (Severe) | 25.0 | August 2 |
11 | 15 | 6.8 | ![]() |
VII (Very strong) | 15.0 | June 19 |
- Note: At least 10 casualties
By magnitude
Rank | Magnitude | Death toll | Location | MMI | Depth (km) | Date |
---|---|---|---|---|---|---|
1 | 8.2 | 52 | ![]() |
VIII (Severe) | 29.9 | May 16 |
2 | 7.9 | 0 | ![]() |
VII (Very strong) | 25.0 | May 16 |
= 3 | 7.6 | 270 | ![]() |
IX (Violent) | 25.0 | August 1 |
= 3 | 7.6 | 0 | ![]() |
IX (Violent) | 23.0 | August 10 |
= 4 | 7.5 | 1 | ![]() |
VIII (Severe) | 34.2 | April 1 |
= 4 | 7.5 | 0 | ![]() |
VIII (Severe) | 45.0 | May 28 |
5 | 7.4 | 0 | ![]() |
VII (Very strong) | 36.9 | January 29 |
= 6 | 7.3 | 0 | ![]() |
VIII (Severe) | 30.0 | February 12 |
= 6 | 7.3 | 0 | ![]() |
VI (Strong) | 45.0 | July 25 |
= 6 | 7.3 | 18 | ![]() |
VIII (Severe) | 25.0 | August 2 |
= 6 | 7.3 | 0 | ![]() |
( ) | 543.1 | August 18 |
= 6 | 7.3 | 0 | ![]() |
( ) | 500.0 | October 7 |
= 7 | 7.2 | 20 | ![]() |
X (Extreme) | 15.0 | February 19 |
= 7 | 7.2 | 3 | ![]() |
IX (Violent) | 20.0 | May 24 |
= 7 | 7.2 | 200 | ![]() |
IX (Violent) | 20.0 | August 14 |
= 8 | 7.1 | 0 | ![]() |
VII (Very strong) | 25.0 | February 26 |
= 8 | 7.1 | 10,488 | ![]() |
X (Extreme) | 10.0 | August 31 |
= 8 | 7.1 | 0 | ![]() |
( ) | 50.0 | September 26 |
= 9 | 7.0 | 0 | ![]() |
( ) | 55.0 | May 20 |
= 9 | 7.0 | 0 | ![]() |
( ) | 28.3 | May 20 |
= 9 | 7.0 | 0 | ![]() |
VI (Strong) | 32.1 | June 12 |
= 9 | 7.0 | 0 | ![]() |
VIII (Severe) | 15.0 | October 23 |
- Note: At least 7.0 magnitude
Notable events
January
Strongest magnitude | 7.4 Mw ![]() |
---|---|
Deadliest | 6.4 Mw ![]() 216 deaths |
Total fatalities | 224 |
Number by magnitude | |
8.0–8.9 | 0 |
7.0–7.9 | 1 |
6.0–6.9 | 6 |
5.0–5.9 | 1 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
4[1] | ![]() | 4.6 | 5.0 | Despite being a moderate magnitude there was some property damage. Costs were $2 million (1968 rate). | |||
6[2][3] | ![]() | 6.4 | 30.0 | VI | |||
13[4][5] | ![]() | 6.1 | 35.0 | IV | |||
15[6][7][8] | ![]() | 6.4 | 10.0 | X | 216 people were killed and 563 were injured in the 1968 Belice earthquake. Extensive destruction was caused in the area with costs reported at $320 million (1968 rate). | 216 | 563 |
19[9][10] | ![]() | 6.7 | 27.5 | V | |||
25[11] | ![]() | 5.1 | 33.0 | 8 people were killed and 55 more were injured. Some damage was reported. Aftershock. | 8 | 55 | |
26[12][13] | ![]() | 6.8 | 30.6 | VI | |||
29[14][15] | ![]() | 7.4 | 36.9 | VII | |||
29[16] | ![]() | 6.1 | 33.0 | Aftershock. |
February
Strongest magnitude | 7.3 Mw ![]() |
---|---|
Deadliest | 7.2 Mw ![]() 20 deaths |
Total fatalities | 24 |
Number by magnitude | |
8.0–8.9 | 0 |
7.0–7.9 | 3 |
6.0–6.9 | 2 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
4[17] | ![]() | 6.6 | 23.5 | Aftershock. | |||
12[18][19][20] | ![]() | 7.3 | 30.0 | VIII | Some damage was reported. | ||
19[21][22][23] | ![]() | 7.2 | 15.0 | X | The 1968 Aegean Sea earthquake killed 20 people and injured 18 more. 500 homes were destroyed and 1,951 were damaged. Costs were $600,000 (1968 rate). | 20 | 18 |
21[24][25][26] | ![]() | 6.2 | 10.0 | VII | During the 1968 Ebino earthquake, 3 people were killed and some damage was reported. | 3 | |
25[27] | ![]() | 4.9 | 0.0 | VIII | 1 person was killed and 4 were hurt. 100 homes collapsed. | 1 | 4 |
26[28][29] | ![]() | 7.1 | 25.0 | VII |
March
Strongest magnitude | 6.4 Mw ![]() |
---|---|
Deadliest | 4.6 Mw ![]() 1 death |
Total fatalities | 1 |
Number by magnitude | |
8.0–8.9 | 0 |
7.0–7.9 | 0 |
6.0–6.9 | 4 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
5[30][31] | ![]() | 6.3 | 35.0 | V | |||
5[32][33] | ![]() | 6.1 | 35.0 | V | Aftershock. | ||
7[34][35] | ![]() | 6.3 | 45.0 | V | |||
11[36] | ![]() | 6.4 | 109.1 | ||||
20[37] | ![]() | 4.6 | 33.0 | 1 person was killed and another was injured. Some property damage was caused. | 1 | 1 |
April
Strongest magnitude | 7.5 Mw ![]() |
---|---|
Deadliest | 5.3 Mw ![]() 38 deaths |
Total fatalities | 39 |
Number by magnitude | |
8.0–8.9 | 0 |
7.0–7.9 | 1 |
6.0–6.9 | 4 |
5.0–5.9 | 1 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
1[38][39][40][41] | ![]() | 7.5 | 34.2 | VIII | 1 person was killed and 22 were injured in the 1968 Hyuga-nada earthquake. Some homes were destroyed in both the earthquake and a subsequent tsunami. | 1 | 22 |
1[42][43] | ![]() | 6.8 | 30.0 | VI | Aftershock. | ||
9[44][45] | ![]() | 6.6 | 10.0 | IX | Some damage was caused by the 1968 Borrego Mountain earthquake. | ||
26[46] | ![]() | 6.2 | 30.0 | ||||
26[47][48] | ![]() | 6.1 | 30.0 | VI | |||
29[49] | ![]() | 5.3 | 34.0 | VII | 38 people were killed and 100 were injured. 1,000 homes were destroyed. Damage costs were $1 million (1968 rate). | 38 | 100 |
May
Strongest magnitude | 8.2 Mw ![]() |
---|---|
Deadliest | 8.2 Mw ![]() 52 deaths |
Total fatalities | 55 |
Number by magnitude | |
8.0–8.9 | 1 |
7.0–7.9 | 5 |
6.0–6.9 | 6 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
14[50][51] | ![]() | 6.7 | 160.1 | V | |||
16[52][53][54][55] | ![]() | 8.2 | 29.9 | VIII | 52 people were killed and 330 were injured in the 1968 Tokachi earthquake. A tsunami was generated which contributed to the destruction. 1,218 homes were destroyed. Damage costs were $131 million (1968 rate). A large number of aftershocks followed. To prevent cluttering only those measuring above magnitude 6.5 will be listed. | 52 | 330 |
16[56][57] | ![]() | 7.9 | 25.0 | VII | Aftershock. | ||
16[58] | ![]() | 6.5 | 25.0 | Aftershock. | |||
16[59] | ![]() | 6.5 | 43.0 | Aftershock. | |||
19[60] | ![]() | 6.3 | 20.0 | South of the aftershock sequence from May 16 event. | |||
20[61] | ![]() | 7.0 | 55.0 | rowspan="2"| Doublet earthquake. | |||
20[62] | ![]() | 6.9 | 50.0 | ||||
20[63] | ![]() | 7.0 | 28.3 | ||||
23[64][65][66] | ![]() | 7.2 | 20.0 | IX | The 1968 Inangahua earthquake caused 3 deaths and $3 million (1968 rate) worth of damage. | 3 | |
24[67] | ![]() | 6.6 | 27.6 | Aftershock. | |||
28[68][69] | ![]() | 7.5 | 45.0 | VIII |
June
Strongest magnitude | 7.0 Mw ![]() |
---|---|
Deadliest | 6.8 Mw ![]() 15 deaths |
Total fatalities | 15 |
Number by magnitude | |
8.0–8.9 | 0 |
7.0–7.9 | 1 |
6.0–6.9 | 3 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
7[70][71] | ![]() | 6.7 | 35.0 | VII | |||
7[72][73] | ![]() | 6.2 | 38.0 | VI | Aftershock. | ||
12[74][75] | ![]() | 7.0 | 32.1 | VI | Aftershock of May 16 event. | ||
19[76][77][78] | ![]() | 6.8 | 15.0 | VII | 15 people were killed and some property damage was caused. Costs were $100,000 (1968 rate). | 15 |
July
Strongest magnitude | 7.3 Mw ![]() |
---|---|
Total fatalities | 0 |
Number by magnitude | |
8.0–8.9 | 0 |
7.0–7.9 | 1 |
6.0–6.9 | 6 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
1[79][80] | ![]() | 6.1 | 60.6 | VI | |||
2[81][82] | ![]() | 6.4 | 57.9 | VI | |||
2[83][84] | ![]() | 6.0 | 45.0 | V | |||
5[85][86] | ![]() | 6.3 | 47.0 | IV | |||
25[87][88][89] | ![]() | 7.3 | 45.0 | VI | Some damage was caused. | ||
29[90][91] | ![]() | 6.2 | 20.0 | V | |||
30[92][93] | ![]() | 6.5 | 31.8 | VI |
August
Strongest magnitude | 7.6 Mw 2 events |
---|---|
Deadliest | 7.1 Mw ![]() 10,488 deaths |
Total fatalities | 10,976 |
Number by magnitude | |
8.0–8.9 | 0 |
7.0–7.9 | 6 |
6.0–6.9 | 9 |
5.0–5.9 | 0 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
1[94][95][96][97] | ![]() | 7.6 | 25.0 | IX | The 1968 Casiguran earthquake caused 270 deaths and 261 injuries. Some homes were destroyed and many were damaged. Costs were around $8 million (1968 rate). A tsunami was generated which left 1 person dead. | 270 | 261 |
2[98][99][100] | ![]() | 7.3 | 25.0 | VIII | 18 people were killed. Property damage was $2.4 million (1968 rate). | 18 | |
3[101][102] | ![]() | 6.7 | 15.0 | VI | |||
3[103][104] | ![]() | 6.4 | 25.0 | VI | Aftershock. | ||
4[105][106] | ![]() | 6.1 | 100.0 | IV | |||
5[107][108] | ![]() | 6.8 | 45.7 | VII | |||
10[109][110][111] | ![]() | 7.6 | 23.0 | IX | Some damage was caused. | ||
10[112] | ![]() | 6.5 | 25.0 | Aftershock. | |||
14[113][114] | ![]() | 6.0 | 20.0 | VI | |||
14[115][116][117] | ![]() | 7.2 | 20.0 | IX | 200 people were killed and 58 were injured in a tsunami triggered by the 1968 Sulawesi earthquake. 800 homes were destroyed. | 200 | 58 |
18[118][119] | ![]() | 7.3 | 543.1 | III | |||
21[120] | ![]() | 6.5 | 15.0 | ||||
23[121] | ![]() | 6.3 | 533.6 | ||||
28[122][123] | ![]() | 6.4 | 20.0 | V | Aftershock. | ||
31[124][125][126] | ![]() | 7.1 | 10.0 | X | The 1968 Dasht-e Bayaz and Ferdows earthquakes caused major destruction in northeast Iran. 10,488 people were killed and over 17,000 were injured. 12,000 homes were destroyed. $35 million (1968 rate) of costs were reported. | 10,488 | 17,000 |
September
Strongest magnitude | 7.1 Mw ![]() |
---|---|
Deadliest | 6.2 Mw ![]() 700 deaths |
Total fatalities | 747 |
Number by magnitude | |
8.0–8.9 | 0 |
7.0–7.9 | 1 |
6.0–6.9 | 13 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
1[127][128][129] | ![]() | 6.2 | 15.0 | VIII | This was a strong aftershock of the 1968 Dasht-e Bayaz and Ferdows earthquakes. 700 additional deaths were caused and 1,500 homes were destroyed. | 700 | |
3[130][131][132] | ![]() | 6.3 | 20.0 | VIII | 24 people were killed and 200 were injured. 2,000 homes damaged or destroyed. | 24 | 200 |
8[133][134] | ![]() | 6.3 | 30.0 | VI | |||
9[135][136] | ![]() | 6.1 | 142.3 | IV | |||
14[137][138] | ![]() | 6.2 | 25.0 | VII | |||
16[139][140] | ![]() | 6.8 | 35.0 | VII | |||
16[141][142] | ![]() | 6.1 | 65.0 | V | Aftershock. | ||
20[143][144][145] | ![]() | 6.5 | 103.4 | IX | 3 people were killed and some damage was caused. | 3 | |
21[146][147] | ![]() | 6.7 | 58.3 | VI | |||
25[148] | ![]() | 6.2 | 15.0 | ||||
25[149][150][151] | ![]() | 6.0 | 124.8 | IV | 20 people were killed and some damage was caused. | 20 | |
26[152] | ![]() | 7.1 | 50.0 | ||||
27[153][154] | ![]() | 6.4 | 15.0 | VIII | |||
28[155][156] | ![]() | 6.1 | 65.0 | V |
October
Strongest magnitude | 7.3 Mw ![]() |
---|---|
Total fatalities | 0 |
Number by magnitude | |
8.0–8.9 | 0 |
7.0–7.9 | 2 |
6.0–6.9 | 6 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
7[157] | ![]() | 7.3 | 500.0 | ||||
7[158][159] | ![]() | 6.5 | 35.0 | VI | |||
10[160][161] | ![]() | 6.1 | 48.9 | V | |||
14[162][163][164] | ![]() | 6.5 | 15.0 | IX | The 1968 Meckering earthquake caused property damage with costs reaching $2.2 million (1968 rate). | ||
20[165][166] | ![]() | 6.2 | 22.5 | V | |||
23[167][168][169] | ![]() | 7.0 | 15.0 | VIII | Some damage was caused. | ||
24[170] | ![]() | 6.3 | 45.0 | ||||
29[171][172] | ![]() | 6.7 | 10.0 | VIII |
November
Strongest magnitude | 6.5 Mw ![]() |
---|---|
Total fatalities | 0 |
Number by magnitude | |
8.0–8.9 | 0 |
7.0–7.9 | 0 |
6.0–6.9 | 3 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
4[173] | ![]() | 6.5 | 597.0 | ||||
17[174] | ![]() | 6.1 | 175.7 | ||||
22[175][176] | ![]() | 6.1 | 35.0 | V |
December
Strongest magnitude | 6.6 Mw ![]() |
---|---|
Total fatalities | 0 |
Number by magnitude | |
8.0–8.9 | 0 |
7.0–7.9 | 0 |
6.0–6.9 | 5 |
Date | Country and location | Mw | Depth (km) | MMI | Notes | Casualties | |
---|---|---|---|---|---|---|---|
Dead | Injured | ||||||
5[177][178] | ![]() | 6.1 | 20.0 | VI | |||
5[179][180] | ![]() | 6.0 | 10.0 | VIII | |||
7[181] | ![]() | 6.6 | 15.0 | ||||
17[182][183] | ![]() | 6.3 | 109.6 | V | |||
19[184][185] | ![]() | 6.0 | 44.1 | V |
References
- ↑ "Significant Earthquake: NICARAGUA: MANAGUA". National Geophysical Data Center. January 4, 1968. Retrieved February 25, 2021.
- ↑ "M 6.4 - Atacama, Chile". United States Geological Survey. January 6, 1968. Retrieved May 12, 2017.
- ↑ "M 6.4 - Atacama, Chile". United States Geological Survey. January 6, 1968. Retrieved February 25, 2021.
- ↑ "M 6.1 - Taiwan region". United States Geological Survey. January 13, 1968. Retrieved May 12, 2017.
- ↑ "M 6.1 - Taiwan region". United States Geological Survey. January 13, 1968. Retrieved February 25, 2021.
- ↑ "M 6.4 - Sicily, Italy". United States Geological Survey. January 15, 1968. Retrieved May 12, 2017.
- ↑ "M 6.4 - Sicily, Italy". United States Geological Survey. January 15, 1968. Retrieved February 25, 2021.
- ↑ "Significant Earthquake: ITALY: SICILY". National Geophysical Data Center. January 15, 1968. Retrieved February 25, 2021.
- ↑ "M 6.7 - Solomon Islands". United States Geological Survey. January 19, 1968. Retrieved May 12, 2017.
- ↑ "M 6.7 - Solomon Islands". United States Geological Survey. January 19, 1968. Retrieved February 25, 2021.
- ↑ "Significant Earthquake: ITALY: SICILY". National Geophysical Data Center. January 25, 1968. Retrieved February 25, 2021.
- ↑ "M 6.8 - Flores region, Indonesia". United States Geological Survey. January 26, 1968. Retrieved May 12, 2017.
- ↑ "M 6.8 - Flores region, Indonesia". United States Geological Survey. January 26, 1968. Retrieved February 25, 2021.
- ↑ "M 7.4 - Kuril Islands". United States Geological Survey. January 29, 1968. Retrieved May 13, 2017.
- ↑ "M 7.4 - Kuril Islands". United States Geological Survey. January 29, 1968. Retrieved February 25, 2021.
- ↑ "M 6.1 - Kuril Islands". United States Geological Survey. January 29, 1968. Retrieved May 13, 2017.
- ↑ "M 6.6 - Kuril Islands". United States Geological Survey. February 4, 1968. Retrieved May 13, 2017.
- ↑ "M 7.3 - New Ireland region, Papua New Guinea". United States Geological Survey. February 12, 1968. Retrieved May 13, 2017.
- ↑ "M 7.3 - New Ireland region, Papua New Guinea". United States Geological Survey. February 12, 1968. Retrieved February 25, 2021.
- ↑ "Significant Earthquake: PAPUA NEW GUINEA: NEW IRELAND". National Geophysical Data Center. February 12, 1968. Retrieved February 25, 2021.
- ↑ "M 7.2 - Aegean Sea". United States Geological Survey. February 19, 1968. Retrieved May 13, 2017.
- ↑ "M 7.2 - Aegean Sea". United States Geological Survey. February 19, 1968. Retrieved February 25, 2021.
- ↑ "Significant Earthquake: GREECE: AEGEAN SEA: ST EUSTRATIOS". National Geophysical Data Center. February 19, 1968. Retrieved February 25, 2021.
- ↑ "M 6.2 - Kyushu, Japan". United States Geological Survey. February 21, 1968. Retrieved May 13, 2017.
- ↑ "M 6.2 - Kyushu, Japan". United States Geological Survey. February 21, 1968. Retrieved February 25, 2021.
- ↑ "Significant Earthquake: JAPAN: KYUSHU". National Geophysical Data Center. February 21, 1968. Retrieved February 25, 2021.
- ↑ "Significant Earthquake: ALGERIA: EL ALEN (BABORD)". National Geophysical Data Center. February 25, 1968. Retrieved February 25, 2021.
- ↑ "M 7.1 - Taiwan region". United States Geological Survey. February 26, 1968. Retrieved May 13, 2017.
- ↑ "M 7.1 - Taiwan region". United States Geological Survey. February 26, 1968. Retrieved February 25, 2021.
- ↑ "M 6.3 - Mindanao, Philippines". United States Geological Survey. March 5, 1968. Retrieved May 13, 2017.
- ↑ "M 6.3 - Mindanao, Philippines". United States Geological Survey. March 5, 1968. Retrieved February 25, 2021.
- ↑ "M 6.1 - Mindanao, Philippines". United States Geological Survey. March 5, 1968. Retrieved May 13, 2017.
- ↑ "M 6.1 - Mindanao, Philippines". United States Geological Survey. March 5, 1968. Retrieved February 25, 2021.
- ↑ "M 6.3 - New Britain region, Papua New Guinea". United States Geological Survey. March 7, 1968. Retrieved May 13, 2017.
- ↑ "M 6.3 - New Britain region, Papua New Guinea". United States Geological Survey. March 7, 1968. Retrieved February 25, 2021.
- ↑ "M 6.4 - Tonga". United States Geological Survey. March 11, 1968. Retrieved May 13, 2017.
- ↑ "Significant Earthquake: KENYA: HOMA BAY, USIRI, GOT KOKECH". National Geophysical Data Center. March 20, 1968. Retrieved February 25, 2021.
- ↑ "M 7.5 - Shikoku, Japan". United States Geological Survey. April 1, 1968. Retrieved May 18, 2017.
- ↑ "M 7.5 - Shikoku, Japan". United States Geological Survey. April 1, 1968. Retrieved February 25, 2021.
- ↑ "Significant Earthquake: JAPAN: KYUSHU, SHIKOKU". National Geophysical Data Center. April 1, 1968. Retrieved February 25, 2021.
- ↑ "Tsunami Event: SEIKAIDO". National Geophysical Data Center. April 1, 1968. Retrieved February 25, 2021.
- ↑ "M 6.8 - Shikoku, Japan". United States Geological Survey. April 1, 1968. Retrieved May 18, 2017.
- ↑ "M 6.8 - Shikoku, Japan". United States Geological Survey. April 1, 1968. Retrieved February 25, 2021.
- ↑ "M 6.6 - 5km NNE of Ocotillo Wells, CA". United States Geological Survey. April 9, 1968. Retrieved May 18, 2017.
- ↑ "M 6.6 - 5km NNE of Ocotillo Wells, CA". United States Geological Survey. April 9, 1968. Retrieved February 25, 2021.
- ↑ "M 6.2 - Samoa Islands region". United States Geological Survey. April 26, 1968. Retrieved May 18, 2017.
- ↑ "M 6.1 - Michoacan, Mexico". United States Geological Survey. April 26, 1968. Retrieved May 18, 2017.
- ↑ "M 6.1 - Michoacan, Mexico". United States Geological Survey. April 26, 1968. Retrieved February 25, 2021.
- ↑ "Significant Earthquake: IRAN: MAKU,SHAH BANDALU,QURTA BOLAGH,QONDEQLI". National Geophysical Data Center. April 29, 1968. Retrieved February 25, 2021.
- ↑ "M 6.7 - Ryukyu Islands, Japan". United States Geological Survey. May 14, 1968. Retrieved May 18, 2017.
- ↑ "M 6.7 - Ryukyu Islands, Japan". United States Geological Survey. May 14, 1968. Retrieved February 25, 2021.
- ↑ "M 8.2 - off the east coast of Honshu, Japan". United States Geological Survey. May 16, 1968. Retrieved May 18, 2017.
- ↑ "M 8.2 - off the east coast of Honshu, Japan". United States Geological Survey. May 16, 1968. Retrieved February 25, 2021.
- ↑ "Significant Earthquake: JAPAN: OFF EAST COAST OF HONSHU ISLAND". National Geophysical Data Center. May 16, 1968. Retrieved February 25, 2021.
- ↑ "Tsunami Event: OFF EAST COAST OF HONSHU ISLAND". National Geophysical Data Center. May 16, 1968. Retrieved February 25, 2021.
- ↑ "M 7.9 - Hokkaido, Japan region". United States Geological Survey. May 16, 1968. Retrieved May 18, 2017.
- ↑ "M 7.9 - Hokkaido, Japan region". United States Geological Survey. May 16, 1968. Retrieved February 25, 2021.
- ↑ "M 6.5 - off the east coast of Honshu, Japan". United States Geological Survey. May 16, 1968. Retrieved May 18, 2017.
- ↑ "M 6.5 - off the east coast of Honshu, Japan". United States Geological Survey. May 16, 1968. Retrieved May 19, 2017.
- ↑ "M 6.3 - near the east coast of Honshu, Japan". United States Geological Survey. May 19, 1968. Retrieved May 19, 2017.
- ↑ "M 7.0 - Kermadec Islands, New Zealand". United States Geological Survey. May 20, 1968. Retrieved May 19, 2017.
- ↑ "M 6.9 - Kermadec Islands, New Zealand". United States Geological Survey. May 20, 1968. Retrieved May 19, 2017.
- ↑ "M 7.0 - east of the Kuril Islands". United States Geological Survey. May 20, 1968. Retrieved May 19, 2017.
- ↑ "M 7.2 - South Island of New Zealand". United States Geological Survey. May 23, 1968. Retrieved May 20, 2017.
- ↑ "M 7.2 - South Island of New Zealand". United States Geological Survey. May 23, 1968. Retrieved February 26, 2021.
- ↑ "Significant Earthquake: NEW ZEALAND: SOUTH ISLAND: NW COAST". National Geophysical Data Center. May 23, 1968. Retrieved February 26, 2021.
- ↑ "M 6.6 - off the east coast of Honshu, Japan". United States Geological Survey. May 24, 1968. Retrieved May 20, 2017.
- ↑ "M 7.5 - near the north coast of Papua, Indonesia". United States Geological Survey. May 28, 1968. Retrieved May 20, 2017.
- ↑ "M 7.5 - near the north coast of Papua, Indonesia". United States Geological Survey. May 28, 1968. Retrieved February 26, 2021.
- ↑ "M 6.7 - Sulawesi, Indonesia". United States Geological Survey. June 7, 1968. Retrieved May 20, 2017.
- ↑ "M 6.7 - Sulawesi, Indonesia". United States Geological Survey. June 7, 1968. Retrieved February 26, 2021.
- ↑ "M 6.2 - Sulawesi, Indonesia". United States Geological Survey. June 7, 1968. Retrieved May 20, 2017.
- ↑ "M 6.2 - Sulawesi, Indonesia". United States Geological Survey. June 7, 1968. Retrieved February 26, 2021.
- ↑ "M 7.0 - off the east coast of Honshu, Japan". United States Geological Survey. June 12, 1968. Retrieved May 20, 2017.
- ↑ "M 7.0 - off the east coast of Honshu, Japan". United States Geological Survey. June 12, 1968. Retrieved February 26, 2021.
- ↑ "M 6.8 - northern Peru". United States Geological Survey. June 19, 1968. Retrieved May 20, 2017.
- ↑ "M 6.8 - northern Peru". United States Geological Survey. June 19, 1968. Retrieved February 26, 2021.
- ↑ "Significant Earthquake: PERU: SAN MARTIN,MOYOBAMBA,YANTALO,RIOJA,LAMAS". National Geophysical Data Center. June 19, 1968. Retrieved February 26, 2021.
- ↑ "M 6.1 - near the south coast of Honshu, Japan". United States Geological Survey. July 1, 1968. Retrieved May 20, 2017.
- ↑ "M 6.1 - near the south coast of Honshu, Japan". United States Geological Survey. July 1, 1968. Retrieved February 26, 2021.
- ↑ "M 6.4 - Guerrero, Mexico". United States Geological Survey. July 2, 1968. Retrieved May 20, 2017.
- ↑ "M 6.4 - Guerrero, Mexico". United States Geological Survey. July 2, 1968. Retrieved February 26, 2021.
- ↑ "M 6.0 - Papua, Indonesia". United States Geological Survey. July 2, 1968. Retrieved May 21, 2017.
- ↑ "M 6.0 - Papua, Indonesia". United States Geological Survey. July 2, 1968. Retrieved February 26, 2021.
- ↑ "M 6.3 - near the east coast of Honshu, Japan". United States Geological Survey. July 5, 1968. Retrieved May 21, 2017.
- ↑ "M 6.3 - near the east coast of Honshu, Japan". United States Geological Survey. July 5, 1968. Retrieved February 26, 2021.
- ↑ "M 7.3 - Kermadec Islands, New Zealand". United States Geological Survey. July 25, 1968. Retrieved May 21, 2017.
- ↑ "M 7.3 - Kermadec Islands, New Zealand". United States Geological Survey. July 25, 1968. Retrieved February 26, 2021.
- ↑ "Significant Earthquake: KERMADEC ISLANDS: S OF, RAOUL". National Geophysical Data Center. July 25, 1968. Retrieved February 26, 2021.
- ↑ "M 6.2 - near the north coast of Papua, Indonesia". United States Geological Survey. July 29, 1968. Retrieved May 21, 2017.
- ↑ "M 6.2 - near the north coast of Papua, Indonesia". United States Geological Survey. July 29, 1968. Retrieved February 26, 2021.
- ↑ "M 6.5 - near the coast of northern Peru". United States Geological Survey. July 30, 1968. Retrieved May 21, 2017.
- ↑ "M 6.5 - near the coast of northern Peru". United States Geological Survey. July 30, 1968. Retrieved February 26, 2021.
- ↑ "M 7.6 - Luzon, Philippines". United States Geological Survey. August 1, 1968. Retrieved May 21, 2017.
- ↑ "M 7.6 - Luzon, Philippines". United States Geological Survey. August 1, 1968. Retrieved February 26, 2021.
- ↑ "Significant Earthquake: PHILIPPINES: LUZON: MANILA". National Geophysical Data Center. August 1, 1968. Retrieved February 26, 2021.
- ↑ "Tsunami Event: E. LUZON ISLAND". National Geophysical Data Center. August 1, 1968. Retrieved February 26, 2021.
- ↑ "M 7.3 - Oaxaca, Mexico". United States Geological Survey. August 2, 1968. Retrieved May 21, 2017.
- ↑ "M 7.3 - Oaxaca, Mexico". United States Geological Survey. August 2, 1968. Retrieved February 26, 2021.
- ↑ "Significant Earthquake: MEXICO: OAXACA, GUERRERO". National Geophysical Data Center. August 2, 1968. Retrieved February 26, 2021.
- ↑ "M 6.7 - Ryukyu Islands, Japan". United States Geological Survey. August 3, 1968. Retrieved May 21, 2017.
- ↑ "M 6.7 - Ryukyu Islands, Japan". United States Geological Survey. August 3, 1968. Retrieved February 26, 2021.
- ↑ "M 6.4 - Luzon, Philippines". United States Geological Survey. August 3, 1968. Retrieved May 21, 2017.
- ↑ "M 6.4 - Luzon, Philippines". United States Geological Survey. August 3, 1968. Retrieved February 26, 2021.
- ↑ "M 6.1 - Mindanao, Philippines". United States Geological Survey. August 4, 1968. Retrieved May 21, 2017.
- ↑ "M 6.1 - Mindanao, Philippines". United States Geological Survey. August 4, 1968. Retrieved February 26, 2021.
- ↑ "M 6.8 - Shikoku, Japan". United States Geological Survey. August 5, 1968. Retrieved May 21, 2017.
- ↑ "M 6.8 - Shikoku, Japan". United States Geological Survey. August 5, 1968. Retrieved February 26, 2021.
- ↑ "M 7.6 - Molucca Sea". United States Geological Survey. August 10, 1968. Retrieved May 22, 2017.
- ↑ "M 7.6 - Molucca Sea". United States Geological Survey. August 10, 1968. Retrieved February 26, 2021.
- ↑ "Significant Earthquake: INDONESIA: MOLUCCA ISLANDS: MANADO, CELEBES". National Geophysical Data Center. August 10, 1968. Retrieved February 26, 2021.
- ↑ "M 6.5 - Molucca Sea". United States Geological Survey. August 10, 1968. Retrieved May 22, 2017.
- ↑ "M 6.0 - offshore Michoacan, Mexico". United States Geological Survey. August 14, 1968. Retrieved May 22, 2017.
- ↑ "M 6.0 - offshore Michoacan, Mexico". United States Geological Survey. August 14, 1968. Retrieved February 26, 2021.
- ↑ "M 7.2 - Minahasa, Sulawesi, Indonesia". United States Geological Survey. August 14, 1968. Retrieved May 22, 2017.
- ↑ "M 7.2 - Minahasa, Sulawesi, Indonesia". United States Geological Survey. August 14, 1968. Retrieved February 26, 2021.
- ↑ "Tsunami Event: BANDA SEA". National Geophysical Data Center. August 14, 1968. Retrieved February 26, 2021.
- ↑ "M 7.3 - Solomon Islands". United States Geological Survey. August 18, 1968. Retrieved May 22, 2017.
- ↑ "M 7.3 - Solomon Islands". United States Geological Survey. August 18, 1968. Retrieved February 26, 2021.
- ↑ "M 6.5 - Kermadec Islands, New Zealand". United States Geological Survey. August 21, 1968. Retrieved May 27, 2017.
- ↑ "M 6.3 - Tarija, Bolivia". United States Geological Survey. August 23, 1968. Retrieved May 27, 2017.
- ↑ "M 6.4 - Philippine Islands region". United States Geological Survey. August 28, 1968. Retrieved May 27, 2017.
- ↑ "M 6.4 - Philippine Islands region". United States Geological Survey. August 28, 1968. Retrieved February 26, 2021.
- ↑ "M 7.1 - northeastern Iran". United States Geological Survey. August 31, 1968. Retrieved May 27, 2017.
- ↑ "M 7.1 - northeastern Iran". United States Geological Survey. August 31, 1968. Retrieved February 26, 2021.
- ↑ "Significant Earthquake: IRAN: DASHT-E-BAYAZ". National Geophysical Data Center. August 31, 1968. Retrieved February 26, 2021.
- ↑ "M 6.2 - northeastern Iran". United States Geological Survey. September 1, 1968. Retrieved May 27, 2017.
- ↑ "M 6.2 - northeastern Iran". United States Geological Survey. September 1, 1968. Retrieved February 26, 2021.
- ↑ "Significant Earthquake: IRAN: FERDOW". National Geophysical Data Center. September 1, 1968. Retrieved February 26, 2021.
- ↑ "M 6.3 - central Turkey". United States Geological Survey. September 3, 1968. Retrieved May 28, 2017.
- ↑ "M 6.3 - central Turkey". United States Geological Survey. September 3, 1968. Retrieved February 26, 2021.
- ↑ "Significant Earthquake: TURKEY: BARTIN, AMASRA, CAKRAZ". National Geophysical Data Center. September 3, 1968. Retrieved February 26, 2021.
- ↑ "M 6.3 - near the north coast of New Guinea, Papua New Guinea". United States Geological Survey. September 8, 1968. Retrieved May 28, 2017.
- ↑ "M 6.3 - near the north coast of New Guinea, Papua New Guinea". United States Geological Survey. September 8, 1968. Retrieved February 26, 2021.
- ↑ "M 6.1 - central Peru". United States Geological Survey. September 9, 1968. Retrieved May 28, 2017.
- ↑ "M 6.1 - central Peru". United States Geological Survey. September 9, 1968. Retrieved February 26, 2021.
- ↑ "M 6.2 - southern Iran". United States Geological Survey. September 14, 1968. Retrieved May 28, 2017.
- ↑ "M 6.2 - southern Iran". United States Geological Survey. September 14, 1968. Retrieved February 26, 2021.
- ↑ "M 6.8 - New Britain region, Papua New Guinea". United States Geological Survey. September 16, 1968. Retrieved May 29, 2017.
- ↑ "M 6.8 - New Britain region, Papua New Guinea". United States Geological Survey. September 16, 1968. Retrieved February 26, 2021.
- ↑ "M 6.1 - New Britain region, Papua New Guinea". United States Geological Survey. September 16, 1968. Retrieved May 29, 2017.
- ↑ "M 6.1 - New Britain region, Papua New Guinea". United States Geological Survey. September 16, 1968. Retrieved February 26, 2021.
- ↑ "M 6.5 - Sucre, Venezuela". United States Geological Survey. September 20, 1968. Retrieved May 29, 2017.
- ↑ "M 6.5 - Sucre, Venezuela". United States Geological Survey. September 20, 1968. Retrieved February 26, 2021.
- ↑ "Significant Earthquake: VENEZUELA: CARUPANO". National Geophysical Data Center. September 20, 1968. Retrieved February 26, 2021.
- ↑ "M 6.7 - Hokkaido, Japan region". United States Geological Survey. September 21, 1968. Retrieved May 29, 2017.
- ↑ "M 6.7 - Hokkaido, Japan region". United States Geological Survey. September 21, 1968. Retrieved February 26, 2021.
- ↑ "M 6.2 - off the west coast of the South Island of New Zealand". United States Geological Survey. September 25, 1968. Retrieved May 29, 2017.
- ↑ "M 6.0 - Chiapas, Mexico". United States Geological Survey. September 25, 1968. Retrieved May 29, 2017.
- ↑ "M 6.0 - Chiapas, Mexico". United States Geological Survey. September 25, 1968. Retrieved February 26, 2021.
- ↑ "Significant Earthquake: MEXICO-GUATEMALA: S CHIAPAS". National Geophysical Data Center. September 25, 1968. Retrieved February 26, 2021.
- ↑ "M 7.1 - Kermadec Islands, New Zealand". United States Geological Survey. September 26, 1968. Retrieved May 29, 2017.
- ↑ "M 6.4 - near the north coast of New Guinea, Papua New Guinea". United States Geological Survey. September 27, 1968. Retrieved May 31, 2017.
- ↑ "M 6.4 - near the north coast of New Guinea, Papua New Guinea". United States Geological Survey. September 27, 1968. Retrieved February 26, 2021.
- ↑ "M 6.1 - near the coast of central Peru". United States Geological Survey. September 28, 1968. Retrieved May 31, 2017.
- ↑ "M 6.1 - near the coast of central Peru". United States Geological Survey. September 28, 1968. Retrieved February 26, 2021.
- ↑ "M 7.3 - Bonin Islands, Japan region". United States Geological Survey. October 7, 1968. Retrieved May 31, 2017.
- ↑ "M 6.5 - Hokkaido, Japan region". United States Geological Survey. October 7, 1968. Retrieved May 31, 2017.
- ↑ "M 6.5 - Hokkaido, Japan region". United States Geological Survey. October 7, 1968. Retrieved February 27, 2021.
- ↑ "M 6.1 - New Britain region, Papua New Guinea". United States Geological Survey. October 10, 1968. Retrieved May 31, 2017.
- ↑ "M 6.1 - New Britain region, Papua New Guinea". United States Geological Survey. October 10, 1968. Retrieved February 27, 2021.
- ↑ "M 6.5 - Western Australia". United States Geological Survey. October 14, 1968. Retrieved May 31, 2017.
- ↑ "M 6.5 - Western Australia". United States Geological Survey. October 14, 1968. Retrieved February 27, 2021.
- ↑ "Significant Earthquake: AUSTRALIA: MECKERING, NORTHAM, CUNDERDIN, YORK". National Geophysical Data Center. October 14, 1968. Retrieved February 27, 2021.
- ↑ "M 6.2 - Taiwan region". United States Geological Survey. October 20, 1968. Retrieved May 31, 2017.
- ↑ "M 6.2 - Taiwan region". United States Geological Survey. October 20, 1968. Retrieved February 27, 2021.
- ↑ "M 7.0 - near the north coast of New Guinea, Papua New Guinea". United States Geological Survey. October 23, 1968. Retrieved June 3, 2017.
- ↑ "M 7.0 - near the north coast of New Guinea, Papua New Guinea". United States Geological Survey. October 23, 1968. Retrieved February 27, 2021.
- ↑ "Significant Earthquake: PAPUA NEW GUINEA: N COAST, WEWAK, DAGUA". National Geophysical Data Center. October 23, 1968. Retrieved February 27, 2021.
- ↑ "M 6.3 - Philippine Islands region". United States Geological Survey. October 24, 1968. Retrieved June 3, 2017.
- ↑ "M 6.7 - northern Alaska". United States Geological Survey. October 29, 1968. Retrieved June 3, 2017.
- ↑ "M 6.7 - northern Alaska". United States Geological Survey. October 29, 1968. Retrieved February 28, 2021.
- ↑ "M 6.5 - Vanuatu region". United States Geological Survey. November 4, 1968. Retrieved June 3, 2017.
- ↑ "M 6.1 - Zulia, Venezuela". United States Geological Survey. November 17, 1968. Retrieved June 3, 2017.
- ↑ "M 6.1 - Luzon, Philippines". United States Geological Survey. November 22, 1968. Retrieved June 3, 2017.
- ↑ "M 6.1 - Luzon, Philippines". United States Geological Survey. November 22, 1968. Retrieved February 28, 2021.
- ↑ "M 6.1 - Dodecanese Islands, Greece". United States Geological Survey. December 5, 1968. Retrieved June 3, 2017.
- ↑ "M 6.1 - Dodecanese Islands, Greece". United States Geological Survey. December 5, 1968. Retrieved February 28, 2021.
- ↑ "M 6.0 - Iceland region". United States Geological Survey. December 5, 1968. Retrieved June 3, 2017.
- ↑ "M 6.0 - Iceland region". United States Geological Survey. December 5, 1968. Retrieved February 28, 2021.
- ↑ "M 6.6 - Bismarck Sea". United States Geological Survey. December 7, 1968. Retrieved June 3, 2017.
- ↑ "M 6.3 - Southern Alaska". United States Geological Survey. December 17, 1968. Retrieved June 3, 2017.
- ↑ "M 6.3 - Southern Alaska". United States Geological Survey. December 17, 1968. Retrieved February 28, 2021.
- ↑ "M 6.0 - near the east coast of the Kamchatka Peninsula, Russia". United States Geological Survey. December 19, 1968. Retrieved June 3, 2017.
- ↑ "M 6.0 - near the east coast of the Kamchatka Peninsula, Russia". United States Geological Survey. December 19, 1968. Retrieved February 28, 2021.