Earthquakes in 1981
List of earthquakes in 1981 is located in Earth
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
List of earthquakes in 1981
Approximate epicenters of the earthquakes in 1981
Strongest magnitude Western Samoa, (Magnitude 7.7) September 1
Deadliest Iran 2 events each caused 3,000 deaths.
Total fatalities6,762
Number by magnitude
9.0+0
8.0–8.90
7.0–7.910
6.0–6.976
5.0–5.91,176
4.0–4.93,160
← 1980
1982 →

This is a list of earthquakes in 1981. Earthquakes of less than magnitude 6 are not included, unless they result in damage and/or casualties, or are notable for some other reason. Events in remote areas will not be listed but included in statistics and maps. Countries are entered on the lists in order of their status in this particular year. All dates are listed according to UTC time. Maximum intensities are indicated on the Modified Mercalli intensity scale and are sourced from United States Geological Survey (USGS) ShakeMap data. 1981 was another year of below average activity. The number of magnitude 7.0+ events was higher than in 1980, but at 10 was still below normal. The largest event was a magnitude 7.7 which struck Samoa in September. Other areas impacted by large events were Greece, New Zealand, Mexico, and Chile. Out of the 6,700 deaths in 1981, the majority were in Iran. Over the summer there were two large events there, each causing 3,000 deaths. In January, Indonesia and China were struck by events which left a combined 450 deaths.

By death toll

Rank Death toll Magnitude Location MMI Depth (km) Date
1 3,000 6.7  Iran, Kerman Province VIII (Severe) 33.0 June 11
1 3,000 7.1  Iran, Kerman Province X (Extreme) 33.0 July 28
2 305 6.7  Indonesia, Papua (province) VII (Very strong) 33.0 January 19
3 220 6.2  Pakistan, Gilgit-Baltistan VI (Strong) 33.0 September 12
4 150 6.8  China, Sichuan Province IX (Violent) 33.0 January 23
5 22 6.7  Greece, Thessaly IX (Violent) 33.0 February 24
6 15 5.4  Colombia, Norte de Santander Department VII (Very strong) 53.6 October 18
7 12 4.6 Italy, Campania VIII (Severe) 10.0 February 14
8 10 5.2  Peru, Huancavelica Region VI (Strong) 23.7 June 22

Listed are earthquakes with at least 10 dead.

By magnitude

Rank Magnitude Death toll Location MMI Depth (km) Date
1 7.7 1  Western Samoa VI (Strong) 25.0 September 1
2 7.6 0  New Zealand, off the south coast of South Island IV (Light) 33.0 May 25
3 7.3 3  Mexico, Guerrero VIII (Severe) 33.0 October 25
= 4 7.2 1  Chile, off the coast of Valparaíso Region VI (Strong) 33.0 October 16
= 4 7.2 0  Greece, Aegean Sea VII (Very strong) 10.0 December 19
= 5 7.1 3,000  Iran, Kerman Province X (Extreme) 33.0 July 28
= 5 7.1 0  New Zealand, Kermadec Islands ( ) 33.0 December 26
= 6 7.0 0  United States, Near Islands, Alaska V (Moderate) 33.0 January 30
= 6 7.0 0  France, southeast of the Loyalty Islands, New Caledonia ( ) 33.0 July 6
= 6 7.0 0  Vanuatu V (Moderate) 30.0 July 15

Listed are earthquakes with at least 7.0 magnitude.

By month

January

January
Strongest magnitude7.0 Mw  United States
Deadliest6.8 Mw  Indonesia
305 deaths
Total fatalities455
Number by magnitude
8.0–8.90
7.0–7.91
6.0–6.911
5.0–5.9125
4.0–4.9233
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

18[1][2] Japan, off the east coast of Honshu6.933.0V A large foreshock of magnitude 6.2 struck minutes earlier.
19[3][4][5] Indonesia, Papua (province)6.733.0VII 305 people were killed in the 1981 Irian Jaya earthquake. At least 51 people were injured. Property damage costs were $5 million (1981 rate).30551
22[6] Japan, off the east coast of Honshu6.420.0 Aftershock of January 18 event.
23[7][8] Japan, southern Hokkaido6.3116.0VI
23[9][10][11] China, Sichuan Province6.833.0IX The 1981 Dawu earthquake caused 150 deaths and 489 injuries. 2,992 homes were destroyed. Costs reached $5 million (1981 rate).150489
30[12][13] United States, Rat Islands, Alaska7.033.0V

February

February
Strongest magnitude6.7 Mw 2 events reached this magnitude.
Deadliest6.7 Mw  Greece
22 deaths
Total fatalities38
Number by magnitude
8.0–8.90
7.0–7.90
6.0–6.96
5.0–5.9101
4.0–4.9248
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

1[14][15] Algeria, Ain Defla Province5.710.0VII Homes that were previously damaged in the 1980 El Asnam earthquake in October 1980 were destroyed.
14[16][17][18] Italy, Campania4.610.0VIII 12 people died and some property damage was reported. Costs were $500,000 (1981 rate).12
17[19] France, southeast of Loyalty Islands, New Caledonia6.729.9
18[20][21] South Africa, western Transvaal (part of the present-day province of North West)4.733.0VI 4 deaths were caused in a mine.4
24[22][23][24] Greece, Thessaly6.733.0IX The 1981 Gulf of Corinth earthquakes were a series of events that caused destruction across central Greece in late February and early March. This event left 22 people dead and 400 injured. 8,000 homes were destroyed. Damage costs were $812 million (1981 rate).22400
25[25][26] Greece, Gulf of Corinth6.433.0IX Further casualties and damage were caused.

March

March
Strongest magnitude6.4 Mw 2 events reached this magnitude.
Deadliest5.6 Mw  Greece
2 deaths
Total fatalities4
Number by magnitude
8.0–8.90
7.0–7.90
6.0–6.95
5.0–5.9111
4.0–4.9242
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

4[27][28][29] Greece, Thessaly6.428.5IX The 1981 Gulf of Corinth earthquakes were a series of events that caused destruction across central Greece in late February and early March. 1 person was killed and 9 people were injured. Further damage was caused.19
7[30][31] Greece, Attica (region)5.533.0VI 1 person died and further damage was caused.1
10[32][33][34] Greece, Epirus5.631.1VIII 2 people were killed and 150 homes were destroyed.2
23[35][36] Chile, off the coast of Valparaíso Region6.246.3VI

April

April
Strongest magnitude6.9 Mw  Vanuatu
Deadliest5.3 Mw  Peru
8 deaths
Total fatalities8
Number by magnitude
8.0–8.90
7.0–7.90
6.0–6.95
5.0–5.984
4.0–4.9265
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

18[37][38] Peru, Ayacucho Region5.338.3V 8 people died and another 15 were hurt. Some property damage was caused.815
24[39][40] Vanuatu6.933.0VII
26[41][42][43] United States, southern California5.818.9VIII $1.5 million (1981 rate) in damages was caused by the 1981 Westmorland earthquake.

May

May
Strongest magnitude7.6 Mw  New Zealand
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.91
6.0–6.95
5.0–5.997
4.0–4.9247
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

2[44][45] Afghanistan, Badakhshan Province6.3228.7IV
6[46][47] Ecuador, off the coast of Santa Elena Province6.433.0VI
25[48][49] New Zealand, off the south coast of South Island7.633.0IV
27[50][51] Greece, Western Greece5.033.0V 9 homes were destroyed and 100 were damaged.
28[52][53] Papua New Guinea, East New Britain Province6.070.5V

June

June
Strongest magnitude6.7 Mw  Iran
Deadliest6.7 Mw  Iran
3,000 deaths
Total fatalities3,011
Number by magnitude
8.0–8.90
7.0–7.90
6.0–6.97
5.0–5.990
4.0–4.9266
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

1[54] Tonga6.033.0
7[55][56] Italy, western Sicily4.918.7V 6 injuries were caused as well as damage to 100 homes.6
9[57][58] China, southern Qinghai Province6.010.0VIII
11[59][60][61] Iran, Kerman Province6.733.0VIII Joint deadliest event in 1981.The 1981 Golbaf earthquake caused 3,000 deaths and at least 101 injuries. Major damage was caused. Costs reached $5 million (1981 rate).3,000101
13[62][63] Afghanistan, Samangan Province5.524.0VI 1 person died and 2 were injured.12
22[64][65][66] Peru, Huancavelica Region5.223.7VI 10 people were killed and at least 51 were injured. Some property damage was caused with costs reaching $5 million (1981 rate).1051

July

July
Strongest magnitude7.1 Mw  Iran
Deadliest7.1 Mw  Iran
3,000 deaths
Total fatalities3,000
Number by magnitude
8.0–8.90
7.0–7.93
6.0–6.93
5.0–5.9100
4.0–4.9343
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

6[67] France, southeast of the Loyalty Islands, New Caledonia7.033.0
15[68][69] Vanuatu7.030.0V Some damage was caused.
23[70][71] Iran, West Azarbaijan Province5.633.0VII Damage was sustained in several villages.
28[72][73][74] Iran, Kerman Province7.133.0X Joint deadliest event in 1981. This was the second major event in Iran in the space of 6 weeks. 3,000 people died in the 1981 Sirch earthquake. 1,000 people were injured. Extensive damage was caused. Costs were $1 billion (1981 rate).3,0001,000

August

August
Strongest magnitude6.0 Mw  Soviet Union, Russia
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.90
6.0–6.91
5.0–5.978
4.0–4.9283
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

13[75][76][77] Yugoslavia, SR Bosnia and Herzegovina5.515.5VIII 44 people were hurt and some damage was caused. Costs were $5 million (1981 rate).44

September

September
Strongest magnitude7.7 Mw  Western Samoa
Deadliest6.2 Mw  Pakistan
220 deaths
Total fatalities221
Number by magnitude
8.0–8.90
7.0–7.91
6.0–6.99
5.0–5.9102
4.0–4.9309
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

1[78][79][80] Western Samoa7.725.0VI Largest event in 1981 A tsunami was observed which swept ashore on some of the islands. At least 1 person drowned and some damage was caused.1
3[81][82] Soviet Union, Kuril Islands, Russia6.645.0VI Some damage was caused.
4[83][84] Philippines, Bohol6.0644.5VII
12[85][86][87] Pakistan, Gilgit-Baltistan6.233.0VI During the 1981 Darel Valley earthquake, 220 people were killed and 2,500 were injured. Major damage was reported. Costs were at least $5 million (1981 rate).2202,500
13[88] Soviet Union, East Kazakhstan Region, Kazakhstan6.00.0 Nuclear test.
17[89] France, southeast of the Loyalty Islands, New Caledonia6.630.0

October

October
Strongest magnitude7.3 Mw  Mexico
Deadliest5.4 Mw  Colombia
15 deaths
Total fatalities19
Number by magnitude
8.0–8.90
7.0–7.92
6.0–6.98
5.0–5.991
4.0–4.9229
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

4[90][91] Papua New Guinea, off the east coast6.333.0VI
9[92][93] Solomon Islands6.450.2V
15[94][95] Japan, off the east coast of Honshu6.047.0IV
16[96][97][98] Chile, off the coast of Valparaíso Region7.233.0IV 1 person was killed indirectly in a car accident.1
18[99] Soviet Union, East Kazakhstan Region, Kazakhstan6.00.0 Nuclear test.
18[100][101][102] Colombia, Norte de Santander Department5.453.6VII 15 deaths were caused as well as at least 101 injuries. Major damage was reported.15101
25[103][104][105] Mexico, Guerrero7.333.0VIII 3 people were killed and 28 were injured in the 1981 Playa Azul earthquake. Some damage was caused.328

November

November
Strongest magnitude6.9 Mw  Papua New Guinea
Total fatalities0
Number by magnitude
8.0–8.90
7.0–7.90
6.0–6.911
5.0–5.996
4.0–4.9226
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

4[106][107] Tonga6.333.0VI
6[108][109] Papua New Guinea, off the coast of East Sepik Province6.933.0VIII Some damage was reported.
7[110][111] Chile, Valparaíso Region6.865.2VII Some damage was reported.
8[112][113] China, Hebei Province5.514.0VII Some damage was reported.
14[114][115][116] Egypt, Aswan Governorate5.310.0VIII 11 homes sustained damage.
22[117][118] Philippines, off the north coast of Luzon6.524.0VI Some damage was caused.
24[119] France, southeast of the Loyalty Islands, New Caledonia6.729.8 A magnitude 6.2 aftershock struck shortly afterward.

December

December
Strongest magnitude7.2 Mw  Greece
Deadliest4.6 Mw  Pakistan
6 deaths
Total fatalities6
Number by magnitude
8.0–8.90
7.0–7.92
6.0–6.95
5.0–5.9101
4.0–4.9269
Date Country and location Mw Depth (km) MMI Notes Casualties
Dead Injured

12[120][121][122] Pakistan, Balochistan, Pakistan4.633.0IV 6 people were killed and 12 were hurt. 45 homes were damaged or destroyed.612
19[123][124][125] Greece, Aegean Sea7.210.0VII Some damage was caused.
24[126] New Zealand, Kermadec Islands6.828.0 Foreshock to December 26 event.
26[127] New Zealand, Kermadec Islands7.133.0
27[128] Soviet Union, East Kazakhstan Region, Kazakhstan6.20.0 Nuclear test.
27[129][130] Greece, Aegean Sea6.513.3VI Aftershock of December 19 event. Some damage was caused.

References

  1. ↑ "M 6.9 - 101 km ESE of ?funato, Japan". United States Geological Survey. January 18, 1981. Retrieved June 25, 2021.
  2. ↑ "M 6.9 - 101 km ESE of ?funato, Japan". United States Geological Survey. January 18, 1981. Retrieved June 25, 2021.
  3. ↑ "M 6.7 - 268 km SW of Abepura, Indonesia". United States Geological Survey. January 19, 1981. Retrieved June 25, 2021.
  4. ↑ "M 6.7 - 268 km SW of Abepura, Indonesia". United States Geological Survey. January 19, 1981. Retrieved June 25, 2021.
  5. ↑ "Significant Earthquake: INDONESIA: NEW GUINEA: IRIAN JAYA: JAYAWIJAYA MTS". National Geophysical Data Center. January 19, 1981. Retrieved June 25, 2021.
  6. ↑ "M 6.4 - 122 km E of Ishinomaki, Japan". United States Geological Survey. January 22, 1981. Retrieved June 25, 2021.
  7. ↑ "M 6.3 - 29 km NW of Shizunai-furukawach?, Japan". United States Geological Survey. January 23, 1981. Retrieved June 25, 2021.
  8. ↑ "M 6.3 - 29 km NW of Shizunai-furukawach?, Japan". United States Geological Survey. January 23, 1981. Retrieved June 25, 2021.
  9. ↑ "M 6.8 - 131 km NW of Kangding, China". United States Geological Survey. January 23, 1981. Retrieved June 25, 2021.
  10. ↑ "M 6.8 - 131 km NW of Kangding, China". United States Geological Survey. January 23, 1981. Retrieved June 25, 2021.
  11. ↑ "Significant Earthquake: CHINA: SICHUAN PROVINCE". National Geophysical Data Center. January 23, 1981. Retrieved June 25, 2021.
  12. ↑ "M 7.0 - 243 km ESE of Attu Station, Alaska". United States Geological Survey. January 30, 1981. Retrieved June 25, 2021.
  13. ↑ "M 7.0 - 243 km ESE of Attu Station, Alaska". United States Geological Survey. January 30, 1981. Retrieved June 25, 2021.
  14. ↑ "M 5.7 - 19 km N of El Abadia, Algeria". United States Geological Survey. February 1, 1981. Retrieved June 25, 2021.
  15. ↑ "M 5.7 - 19 km N of El Abadia, Algeria". United States Geological Survey. February 1, 1981. Retrieved June 25, 2021.
  16. ↑ "M 4.6 - 2 km NNE of Rotondi, Italy". United States Geological Survey. February 14, 1981. Retrieved June 25, 2021.
  17. ↑ "M 4.6 - 2 km NNE of Rotondi, Italy". United States Geological Survey. February 14, 1981. Retrieved June 25, 2021.
  18. ↑ "Significant Earthquake: ITALY: S". National Geophysical Data Center. February 14, 1981. Retrieved June 25, 2021.
  19. ↑ "M 6.7 - 156 km E of Tadine, New Caledonia". United States Geological Survey. February 17, 1981. Retrieved June 25, 2021.
  20. ↑ "M 4.7 - 25 km NNW of Klerksdorp, South Africa". United States Geological Survey. February 18, 1981. Retrieved June 25, 2021.
  21. ↑ "M 4.7 - 25 km NNW of Klerksdorp, South Africa". United States Geological Survey. February 18, 1981. Retrieved June 25, 2021.
  22. ↑ "M 6.7 - 5 km SW of Domvraína, Greece". United States Geological Survey. February 24, 1981. Retrieved June 25, 2021.
  23. ↑ "M 6.7 - 5 km SW of Domvraína, Greece". United States Geological Survey. February 24, 1981. Retrieved June 25, 2021.
  24. ↑ "Significant Earthquake: GREECE: ATHENS-EASTERN GULF OF CORINTH". National Geophysical Data Center. February 24, 1981. Retrieved June 25, 2021.
  25. ↑ "M 6.4 - 13 km SSW of Kaparéllion, Greece". United States Geological Survey. February 25, 1981. Retrieved June 25, 2021.
  26. ↑ "M 6.4 - 13 km SSW of Kaparéllion, Greece". United States Geological Survey. February 25, 1981. Retrieved June 25, 2021.
  27. ↑ "M 6.4 - 3 km WSW of Erythrés, Greece". United States Geological Survey. March 4, 1981. Retrieved June 25, 2021.
  28. ↑ "M 6.4 - 3 km WSW of Erythrés, Greece". United States Geological Survey. March 4, 1981. Retrieved June 25, 2021.
  29. ↑ "Significant Earthquake: GREECE: ATHENS-CORINTH-KHALIS". National Geophysical Data Center. March 4, 1981. Retrieved June 25, 2021.
  30. ↑ "M 5.5 - 2 km NNW of Vília, Greece". United States Geological Survey. March 7, 1981. Retrieved June 25, 2021.
  31. ↑ "M 5.5 - 2 km NNW of Vília, Greece". United States Geological Survey. March 7, 1981. Retrieved June 25, 2021.
  32. ↑ "M 5.6 - 16 km E of Paramythiá, Greece". United States Geological Survey. March 10, 1981. Retrieved June 25, 2021.
  33. ↑ "M 5.6 - 16 km E of Paramythiá, Greece". United States Geological Survey. March 10, 1981. Retrieved June 25, 2021.
  34. ↑ "Significant Earthquake: GREECE: PREVEZA". National Geophysical Data Center. March 10, 1981. Retrieved June 25, 2021.
  35. ↑ "M 6.2 - 27 km WSW of San Antonio, Chile". United States Geological Survey. March 23, 1981. Retrieved June 25, 2021.
  36. ↑ "M 6.2 - 27 km WSW of San Antonio, Chile". United States Geological Survey. March 23, 1981. Retrieved June 25, 2021.
  37. ↑ "M 5.3 - 4 km WSW of Ticllas, Peru". United States Geological Survey. April 18, 1981. Retrieved June 25, 2021.
  38. ↑ "M 5.3 - 4 km WSW of Ticllas, Peru". United States Geological Survey. April 18, 1981. Retrieved June 25, 2021.
  39. ↑ "M 6.9 - 132 km WNW of Sola, Vanuatu". United States Geological Survey. April 24, 1981. Retrieved June 25, 2021.
  40. ↑ "M 6.9 - 132 km WNW of Sola, Vanuatu". United States Geological Survey. April 24, 1981. Retrieved June 25, 2021.
  41. ↑ "M 5.8 - 6km N of Westmorland, CA". United States Geological Survey. April 26, 1981. Retrieved June 25, 2021.
  42. ↑ "M 5.8 - 6km N of Westmorland, CA". United States Geological Survey. April 26, 1981. Retrieved June 25, 2021.
  43. ↑ "Significant Earthquake: CALIFORNIA: WESTMORLAND,CALIPATRIA". National Geophysical Data Center. April 26, 1981. Retrieved June 25, 2021.
  44. ↑ "M 6.3 - 54 km SW of Ashk?sham, Afghanistan". United States Geological Survey. May 2, 1981. Retrieved June 26, 2021.
  45. ↑ "M 6.3 - 54 km SW of Ashk?sham, Afghanistan". United States Geological Survey. May 2, 1981. Retrieved June 26, 2021.
  46. ↑ "M 6.4 - 37 km NNE of Salinas, Ecuador". United States Geological Survey. May 6, 1981. Retrieved June 26, 2021.
  47. ↑ "M 6.4 - 37 km NNE of Salinas, Ecuador". United States Geological Survey. May 6, 1981. Retrieved June 26, 2021.
  48. ↑ "M 7.6 - off the west coast of the South Island of New Zealand". United States Geological Survey. May 25, 1981. Retrieved June 26, 2021.
  49. ↑ "M 7.6 - off the west coast of the South Island of New Zealand". United States Geological Survey. May 25, 1981. Retrieved June 26, 2021.
  50. ↑ "M 5.0 - 1 km W of Monastiráki, Greece". United States Geological Survey. May 27, 1981. Retrieved June 26, 2021.
  51. ↑ "M 5.0 - 1 km W of Monastiráki, Greece". United States Geological Survey. May 27, 1981. Retrieved June 26, 2021.
  52. ↑ "M 6.0 - 141 km E of Kimbe, Papua New Guinea". United States Geological Survey. May 28, 1981. Retrieved June 26, 2021.
  53. ↑ "M 6.0 - 141 km E of Kimbe, Papua New Guinea". United States Geological Survey. May 28, 1981. Retrieved June 26, 2021.
  54. ↑ "M 6.0 - 31 km SE of Hihifo, Tonga". United States Geological Survey. June 1, 1981. Retrieved June 26, 2021.
  55. ↑ "M 4.9 - 4 km SSW of Petrosino, Italy". United States Geological Survey. June 7, 1981. Retrieved June 26, 2021.
  56. ↑ "M 4.9 - 4 km SSW of Petrosino, Italy". United States Geological Survey. June 7, 1981. Retrieved June 26, 2021.
  57. ↑ "M 6.0 - Southern Qinghai, China". United States Geological Survey. June 9, 1981. Retrieved June 26, 2021.
  58. ↑ "M 6.0 - Southern Qinghai, China". United States Geological Survey. June 9, 1981. Retrieved June 26, 2021.
  59. ↑ "M 6.7 - 73 km SE of Kerman, Iran". United States Geological Survey. June 11, 1981. Retrieved June 26, 2021.
  60. ↑ "M 6.7 - 73 km SE of Kerman, Iran". United States Geological Survey. June 11, 1981. Retrieved June 26, 2021.
  61. ↑ "Significant Earthquake: IRAN: SE: GOLBAFT". National Geophysical Data Center. June 11, 1981. Retrieved June 26, 2021.
  62. ↑ "M 5.5 - 19 km WSW of A?bak, Afghanistan". United States Geological Survey. June 13, 1981. Retrieved June 26, 2021.
  63. ↑ "M 5.5 - 19 km WSW of A?bak, Afghanistan". United States Geological Survey. June 13, 1981. Retrieved June 26, 2021.
  64. ↑ "M 5.2 - 15 km SW of Antaparco, Peru". United States Geological Survey. June 22, 1981. Retrieved June 26, 2021.
  65. ↑ "M 5.2 - 15 km SW of Antaparco, Peru". United States Geological Survey. June 22, 1981. Retrieved June 26, 2021.
  66. ↑ "Significant Earthquake: PERU: CENTRAL". National Geophysical Data Center. June 22, 1981. Retrieved June 26, 2021.
  67. ↑ "M 7.0 - southeast of the Loyalty Islands". United States Geological Survey. July 6, 1981. Retrieved June 26, 2021.
  68. ↑ "M 7.0 - 92 km NW of Port-Vila, Vanuatu". United States Geological Survey. July 15, 1981. Retrieved June 26, 2021.
  69. ↑ "M 7.0 - 92 km NW of Port-Vila, Vanuatu". United States Geological Survey. July 15, 1981. Retrieved June 26, 2021.
  70. ↑ "M 5.6 - 16 km NE of Oshnav?yeh, Iran". United States Geological Survey. July 23, 1981. Retrieved June 26, 2021.
  71. ↑ "M 5.6 - 16 km NE of Oshnav?yeh, Iran". United States Geological Survey. July 23, 1981. Retrieved June 26, 2021.
  72. ↑ "M 7.1 - 75 km ESE of Kerman, Iran". United States Geological Survey. July 28, 1981. Retrieved June 26, 2021.
  73. ↑ "M 7.1 - 75 km ESE of Kerman, Iran". United States Geological Survey. July 28, 1981. Retrieved June 26, 2021.
  74. ↑ "Significant Earthquake: IRAN: SE, KERMAN". National Geophysical Data Center. July 28, 1981. Retrieved June 26, 2021.
  75. ↑ "M 5.5 - Bosnia and Herzegovina". United States Geological Survey. August 13, 1981. Retrieved June 26, 2021.
  76. ↑ "M 5.5 - Bosnia and Herzegovina". United States Geological Survey. August 13, 1981. Retrieved June 26, 2021.
  77. ↑ "Significant Earthquake: BALKANS NW: BOSNIA-HERZEGOVINA: BANJA LUKA". National Geophysical Data Center. August 13, 1981. Retrieved June 26, 2021.
  78. ↑ "M 7.7 - 133 km NE of Hihifo, Tonga". United States Geological Survey. September 1, 1981. Retrieved June 26, 2021.
  79. ↑ "M 7.7 - 133 km NE of Hihifo, Tonga". United States Geological Survey. September 1, 1981. Retrieved June 26, 2021.
  80. ↑ "Tsunami Event: SAMOA ISLANDS". National Geophysical Data Center. September 1, 1981. Retrieved June 26, 2021.
  81. ↑ "M 6.6 - 31 km SE of Shikotan, Russia". United States Geological Survey. September 3, 1981. Retrieved June 26, 2021.
  82. ↑ "M 6.6 - 31 km SE of Shikotan, Russia". United States Geological Survey. September 3, 1981. Retrieved June 26, 2021.
  83. ↑ "M 6.0 - 1 km ENE of Clarin, Philippines". United States Geological Survey. September 4, 1981. Retrieved June 26, 2021.
  84. ↑ "M 6.0 - 1 km ENE of Clarin, Philippines". United States Geological Survey. September 4, 1981. Retrieved June 26, 2021.
  85. ↑ "M 6.2 - 69 km WSW of Gilgit, Pakistan". United States Geological Survey. September 12, 1981. Retrieved June 26, 2021.
  86. ↑ "M 6.2 - 69 km WSW of Gilgit, Pakistan". United States Geological Survey. September 12, 1981. Retrieved June 26, 2021.
  87. ↑ "Significant Earthquake: PAKISTAN: GILGIT". National Geophysical Data Center. September 12, 1981. Retrieved June 26, 2021.
  88. ↑ "M 6.0 Nuclear Explosion - 100 km SSE of Kurchatov, Kazakhstan". United States Geological Survey. September 13, 1981. Retrieved June 26, 2021.
  89. ↑ "M 6.6 - 291 km ESE of Tadine, New Caledonia". United States Geological Survey. September 17, 1981. Retrieved June 26, 2021.
  90. ↑ "M 6.3 - 81 km NNE of Madang, Papua New Guinea". United States Geological Survey. October 4, 1981. Retrieved June 27, 2021.
  91. ↑ "M 6.3 - 81 km NNE of Madang, Papua New Guinea". United States Geological Survey. October 4, 1981. Retrieved June 27, 2021.
  92. ↑ "M 6.4 - 54 km NNE of Kirakira, Solomon Islands". United States Geological Survey. October 9, 1981. Retrieved June 27, 2021.
  93. ↑ "M 6.4 - 54 km NNE of Kirakira, Solomon Islands". United States Geological Survey. October 9, 1981. Retrieved June 27, 2021.
  94. ↑ "M 6.0 - 71 km NNE of Miyako, Japan". United States Geological Survey. October 15, 1981. Retrieved June 27, 2021.
  95. ↑ "M 6.0 - 71 km NNE of Miyako, Japan". United States Geological Survey. October 15, 1981. Retrieved June 27, 2021.
  96. ↑ "M 7.2 - 135 km W of Valparaíso, Chile". United States Geological Survey. October 16, 1981. Retrieved June 27, 2021.
  97. ↑ "M 7.2 - 135 km W of Valparaíso, Chile". United States Geological Survey. October 16, 1981. Retrieved June 27, 2021.
  98. ↑ "Significant Earthquake: CHILE: OFF CENTRAL COAST, LAS CRUCES". National Geophysical Data Center. October 16, 1981. Retrieved June 27, 2021.
  99. ↑ "M 6.0 Nuclear Explosion - 100 km SSE of Kurchatov, Kazakhstan". United States Geological Survey. October 18, 1981. Retrieved June 27, 2021.
  100. ↑ "M 5.4 - 12 km SW of La Esperanza, Colombia". United States Geological Survey. October 18, 1981. Retrieved June 27, 2021.
  101. ↑ "M 5.4 - 12 km SW of La Esperanza, Colombia". United States Geological Survey. October 18, 1981. Retrieved June 27, 2021.
  102. ↑ "Significant Earthquake: VENEZUELA-N COLOMBIA". National Geophysical Data Center. October 18, 1981. Retrieved June 27, 2021.
  103. ↑ "M 7.3 - 7 km NNE of Petacalco, Mexico". United States Geological Survey. October 25, 1981. Retrieved June 27, 2021.
  104. ↑ "M 7.3 - 7 km NNE of Petacalco, Mexico". United States Geological Survey. October 25, 1981. Retrieved June 27, 2021.
  105. ↑ "Significant Earthquake: MEXICO: MICHOACAN: LAZARO CARDENAS". National Geophysical Data Center. October 25, 1981. Retrieved June 27, 2021.
  106. ↑ "M 6.3 - 26 km SSE of Pangai, Tonga". United States Geological Survey. November 4, 1981. Retrieved June 27, 2021.
  107. ↑ "M 6.3 - 26 km SSE of Pangai, Tonga". United States Geological Survey. November 4, 1981. Retrieved June 27, 2021.
  108. ↑ "M 6.9 - 17 km E of Wewak, Papua New Guinea". United States Geological Survey. November 6, 1981. Retrieved June 27, 2021.
  109. ↑ "M 6.9 - 17 km E of Wewak, Papua New Guinea". United States Geological Survey. November 6, 1981. Retrieved June 27, 2021.
  110. ↑ "M 6.8 - 29 km NNW of La Ligua, Chile". United States Geological Survey. November 7, 1981. Retrieved June 27, 2021.
  111. ↑ "M 6.8 - 29 km NNW of La Ligua, Chile". United States Geological Survey. November 7, 1981. Retrieved June 27, 2021.
  112. ↑ "M 5.5 - 32 km WSW of Nangong, China". United States Geological Survey. November 8, 1981. Retrieved June 27, 2021.
  113. ↑ "M 5.5 - 32 km WSW of Nangong, China". United States Geological Survey. November 8, 1981. Retrieved June 27, 2021.
  114. ↑ "M 5.3 - 53 km SW of Aswan, Egypt". United States Geological Survey. November 14, 1981. Retrieved June 27, 2021.
  115. ↑ "M 5.3 - 53 km SW of Aswan, Egypt". United States Geological Survey. November 14, 1981. Retrieved June 27, 2021.
  116. ↑ "Significant Earthquake: EGYPT: ASWAN". National Geophysical Data Center. November 14, 1981. Retrieved June 27, 2021.
  117. ↑ "M 6.5 - 21 km NNE of Pagudpud, Philippines". United States Geological Survey. November 22, 1981. Retrieved June 27, 2021.
  118. ↑ "M 6.5 - 21 km NNE of Pagudpud, Philippines". United States Geological Survey. November 22, 1981. Retrieved June 27, 2021.
  119. ↑ "M 6.7 - southeast of the Loyalty Islands". United States Geological Survey. November 24, 1981. Retrieved June 27, 2021.
  120. ↑ "M 4.6 - 12 km ENE of Mastung, Pakistan". United States Geological Survey. December 12, 1981. Retrieved June 27, 2021.
  121. ↑ "M 4.6 - 12 km ENE of Mastung, Pakistan". United States Geological Survey. December 12, 1981. Retrieved June 27, 2021.
  122. ↑ "Significant Earthquake: PAKISTAN: CENTRAL". National Geophysical Data Center. December 12, 1981. Retrieved June 27, 2021.
  123. ↑ "M 7.2 - 61 km W of Eresós, Greece". United States Geological Survey. December 19, 1981. Retrieved June 27, 2021.
  124. ↑ "M 7.2 - 61 km W of Eresós, Greece". United States Geological Survey. December 19, 1981. Retrieved June 27, 2021.
  125. ↑ "Significant Earthquake: GREECE: AEGEAN SEA: LESBOS, SKIROS". National Geophysical Data Center. December 19, 1981. Retrieved June 27, 2021.
  126. ↑ "M 6.8 - Kermadec Islands, New Zealand". United States Geological Survey. December 24, 1981. Retrieved June 27, 2021.
  127. ↑ "M 7.1 - Kermadec Islands, New Zealand". United States Geological Survey. December 24, 1981. Retrieved June 27, 2021.
  128. ↑ "M 6.2 Nuclear Explosion - 97 km SSE of Kurchatov, Kazakhstan". United States Geological Survey. December 27, 1981. Retrieved June 27, 2021.
  129. ↑ "M 6.5 - 29 km E of Skýros, Greece". United States Geological Survey. December 27, 1981. Retrieved June 27, 2021.
  130. ↑ "M 6.5 - 29 km E of Skýros, Greece". United States Geological Survey. December 27, 1981. Retrieved June 27, 2021.
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