A 4.0 earthquake hit near Ontario, CA, felt across the region with minor aftershocks; no significant damage reported.

A magnitude 4.0 earthquake followed by several aftershocks struck Southern California Sunday morning, according to the U.S.

Six low-intensity earthquakes rumbled beneath Mount Adams during September, according to the U.S. Geological Survey Cascades Volcano Observatory. That’s an unusual amount of seismic activity at the 12 ...

A magnitude 4.3 earthquake struck early on Sunday morning, October 6, 2024, at 3:51 am local time near Ontario in San Bernardino County, California, according to the United States Geological Survey ...

An earthquake shook Southern California's Inland Empire early Sunday morning.The magnitude of the earthquake was 4.0, which ...

LOS ANGELES – A magnitude 4.0 earthquake shook the Los Angeles area early Sunday morning. According to the United States ...

The U.S. Geological Survey is closely monitoring Mount Adams after a notable increase in seismic activity was recorded in ...

Mount Adams, which is the largest active volcano in Washington, has had a record-breaking spike in the amount of earthquakes ...

ONTARIO, Calif. (KABC) -- A magnitude 4.0 earthquake rattled the Ontario area Sunday morning, jolting some residents awake.

Another earthquake shook the Los Angeles region Saturday night, following a September that saw above-average seismic activity.

Topographic mapping has been a key component of volcano monitoring for decades, helping scientists to study morphologic ...