It was the largest yet in a series of quakes to impact the island.
Earthquakes are the result of plate tectonics, or shifting plates in the crust of Earth, and quakes occur when the frictional stress of gliding plate boundaries builds and causes failure at a fault line. In an earthquake, elastic strain energy is released and waves radiate, shaking the ground. Scientists can predict where major temblors might occur in a general sense, but research does not yet allow forecasts for specific locations or accurate predictions of timing. Major earthquakes, some generating tsunamis, have leveled entire cities and affected whole countries. Relatively minor earthquakes can also be induced, or caused by human activity, including extraction of minerals from Earth and the collapse of large buildings.
Planet Earth went through its fair share of upheavals in 2019, from earthquakes to volcanic eruptions to alterations caused by human activity.
A gaping hole in a dying tectonic plate beneath the ocean along the West Coast of the United States may be wreaking havoc at Earth's surface, but not in a way most people might expect.
A mud-volcano island that burst from the waters off the coast of Pakistan during a deadly earthquake in 2013 has disappeared beneath the waves.
Japanese satellite shows where the ground was broken up and even sliced open during the twin earthquakes near Ridgecrest.
It's possible that the recent quakes could be the straw that broke the camel's back for the San Andreas Fault, which is way overdue for a major rupture.
This time, a magnitude-7.1 temblor struck the region near Ridgecrest, California. Experts say the next one could be even bigger.
Southern California was rattled by a magnitude 6.4 quake on Thursday (July 4). Bigger quakes could be coming soon.
Recent rumblings at Yellowstone National Park are actually aftershocks of a quake that occurred 60 years ago.
A massive, underground "blob" might be triggering hundreds of earthquakes in the Hindu Kush mountains.
Falsified data suggested that an earthquake was terminated by one of the most active volcanoes in Japan.
NASA's TESS mission has, for the first time, detected a planet orbiting a star with visible starquakes.
Earthquakes may be dumping millions of tons of carbon into the Earth's deepest cracks. And scientists aren't sure what that means.
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