Portal:Earth sciences/DYK/11

Spherical concretion on Ward Beach

... that spherical concretions (example pictured) were revealed on Ward Beach as a result of the large uplift of the seabed caused by the 2016 Kaikōura earthquake?
... that although the April 1923 Kamchatka earthquake had a surface-wave magnitude of 6.8 to 7.3, its tsunami was larger than that of the magnitude-8.4 earthquake in February in the same region?
... that Class 1 protected forests in Sabah, such as Tenompok Forest Reserve, Tawai Forest Reserve, Binsuluk Forest Reserve, and Ulu Telupid Forest Reserve, are threatened by encroaching agriculture, illegal logging, and man-made fires?
... that Monturaqui crater in Chile is threatened by human action?
... that in August 2017, Potential Tropical Cyclone Ten caused some of the worst flooding seen in western Florida in 20 years, just two weeks before Hurricane Irma struck the same region?
... that the volcano Eifuku produces bubbles of liquid carbon dioxide underwater?

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