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Debris from a collapsed wall litters the ground in Ponce, Puerto Rico following the Jan. 7 earthquake.

A Major Earthquake Knocked Out Power Across Puerto Rico This Morning

By Rafi Letzter published

It was the largest yet in a series of quakes to impact the island.

Earthquakes
The Cullinan diamond was mined in Premier Mine in South Africa in 1905. The same mine has yielded superdeep diamonds, which could hold secrets to the quakes occurring in the mantle's transition zone.

Diamonds Buried 400 Miles Below Surface Could Explain Mysterious Earthquakes

By Mindy Weisberger published

What's driving Earth's deepest earthquakes? Diamonds may hold answers.

Earthquakes
The 6.3-magnitude earthquake occurred about 176 miles (284 kilometers) west-northwest of Bandon, Oregon.

6.3-Magnitude Earthquake Strikes Off Oregon Coast

By Rachael Rettner published

A strong earthquake struck off the coast of Oregon today (Aug. 29), according to the U.S. Geological Survey (USGS).

Earthquakes
san Andreas fault

Most of California's Big Earthquakes Are Preceded by Ghostly 'Foreshocks' Weeks in Advance

By Brandon Specktor published

Foreshocks — the tiny, sometimes imperceptible tremors that precede massive earthquakes — are way more common than we thought.

Earthquakes
A September 2013 image shows the then-brand new island.

Pakistan's 'Earthquake Island' Has Vanished

By Rafi Letzter published

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.

Earthquakes
NASA experts used satellite data to map the ground displacement caused by the two major earthquakes that struck Southern California on July 4 and 5, 2019.

2 SoCal Earthquakes Warped the Ground for Miles. And It's Visible from Space.

By Elizabeth Howell published

Japanese satellite shows where the ground was broken up and even sliced open during the twin earthquakes near Ridgecrest.

Earthquakes
Highway workers repair a hole that opened up after a 7.1-magnitude earthquake rocked an area near Ridgecrest, California on July 5, 2019.

SoCal Has An 8% Chance of Another Huge Quake This Week

By Stephanie Pappas published

Even so, the chance of big quakes near Ridgecrest, California, decreases with time.

Earthquakes
The San Andreas fault system is more than 800 miles (1,300 kilometers) long, and as deep as 10 miles (16 km) in some spots.

Could Massive SoCal Earthquakes Trigger the 'Big One' on the San Andreas Fault?

By Tia Ghose, Jeanna Bryner published

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.

Earthquakes
An onlooker views newly ruptured ground after a 7.1-magnitude earthquake struck on July 6, 2019, near Ridgecrest, California.

The Faults That Ruptured in Twin California Quakes Are Very, Very Weird, Geologists Say.

By Jeanna Bryner published

Scientists know very little about the faults that ripped apart during the massive SoCal quakes.

Earthquakes
magnitude 7.1 Ridgecrest quake map

An Even Larger Quake Just Rocked Southern California. Experts Say the Fault System Is Growing.

By Tia Ghose published

This time, a magnitude-7.1 temblor struck the region near Ridgecrest, California. Experts say the next one could be even bigger.

Earthquakes
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