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4 days ago · Earthquake, any sudden shaking of the ground caused by the passage of seismic waves through Earth’s rocks. Earthquakes occur most often along geologic faults, narrow zones where rock masses move in relation to one another. Learn more about the causes and effects of earthquakes in this article.
4 days ago · A powerful 7.2 magnitude earthquake hit off the coast of southern Peru Friday at depth of 28 kilometers (17 miles), according to the United States Geological Survey.
Jun 25, 2024 · Earthquakes are among the most fearsome natural catastrophes on Earth. Learn more about them with these 40 earthquake facts.
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Jun 16, 2024 · A catastrophic earthquake and tsunami are inevitable for the coast of the Pacific Northwest, scientists say. Planning for that means imagining a disaster unlike anything that’s ever hit the ...
4 days ago · Earthquake magnitude is a measure of the “size,” or amplitude, of the seismic waves generated by an earthquake source and recorded by seismographs. (The types and nature of these waves are described in the section Seismic waves .)
4 days ago · Why is an earthquake dangerous? What are earthquake waves? How is earthquake magnitude measured? Where do earthquakes occur?
4 days ago · Earthquake - Tectonics, Seismology, Faults: Tectonic earthquakes are explained by the so-called elastic rebound theory, formulated by the American geologist Harry Fielding Reid after the San Andreas Fault ruptured in 1906, generating the great San Francisco earthquake.
