California was hit by three earthquakes on Wednesday, just days after a major 5.2 magnitude quake rocked the state. The US Geological Survey (USGS) detected a 3.8 magnitude earthquake around 8am ...

A minor, 3.7-magnitude earthquake struck in Southern California on Thursday. It was followed by a larger, 4.3-magnitude quake nearby a few hours later, according to the United States Geological Survey ...

CALIPATRIA– A 4.3-magnitude earthquake struck near the Salton Sea early Friday morning, jolting residents and triggering a series of smaller quakes in the seismically active region. The temblor, cente ...

The so-called earthquake swarm at Mount Rainier dwindled Friday but has surpassed the last large event at the volcano in 2009, the USGS said.

Mount Rainier is an active stratovolcano 45 miles southeast of Tacoma and 60 miles south-southeast of Seattle. Its last ...

More than 300 earthquakes have erupted at Washington's Mount Rainier this week, the largest earthquake swarm at the volcano ...