A hidden shard of ancient crust has been detected where California’s San Andreas system collides with the Cascadia subduction ...

Scientists discover ultra-weak faults near the 7.2 magnitude earthquake in Haiti that continued to slip for weeks.

A hidden chunk of an ancient tectonic plate is stuck to the Pacific Ocean floor and sliding under North America, complicating ...

Seismic tremors reveal a shallow fragment of ancient tectonic plate beneath Northern California, helping explain damaging ...

Focusing on an area off the coast of Crescent City, California, the researchers used autonomous and remotely operated ...

By tracking swarms of very small earthquakes, seismologists are getting a new picture of the complex region where the San ...

Seismologists have discovered hidden faults at the Mendocino Triple Junction by tracking tiny earthquakes using a new ...

Invisible earthquakes are revealing a hidden tectonic puzzle beneath California’s most dangerous fault zone.

Many of the state’s largest earthquakes have struck near the junction, where the Pacific, North American and Gorda plates ...

Scientists have devised the most detailed map to date of the terrain hidden below the vast ice sheet blanketing Antarctica, ...

Scientists used satellite data to confirm that Earth's crust is "dripping" into the mantle beneath Turkey's Central Anatolian ...