Undersea rocks yield earthquake clues

Earthquakes shake and rattle the world every day. The U.S. Geological Survey (USGS) has estimated the number of earthquakes at some half a million a year, with some 100,000 that can be felt, and about 100 that cause damage. ...

Continuous activity of small earthquakes makes mountains grow

From a human perspective, earthquakes are natural disasters—in the past hundred years, they have caused more than 200,000 deaths and enormous economic damage. Mega-earthquakes with a magnitude of nine or higher on the Richter ...

What causes earthquake foreshocks?

On the morning of July 4, 2019, a series of very small earthquakes began to rumble in the Mojave Desert, not far from the southern California town of Ridgecrest.

Electromagnetic anomalies that occur before an earthquake

It has been documented over hundreds of years that various electromagnetic anomalies occur a few weeks before the occurrence of a large earthquake. These electromagnetic anomalies are variations that appear in telluric current, ...

6.6 magnitude quake hits off Indonesia's Sumatra: USGS

A 6.6-magnitude earthquake struck off the west coast of Indonesia's Sumatra Friday, the United States Geological Survey said, triggering panic on the nearest island but there were no immediate reports of damage or casualties.

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