Six low-intensity earthquakes rumbled beneath Mount Adams during September, according to the U.S. Geological Survey Cascades ...

Washington’s Mount Adams has seen some pretty unusual activity as of late, the US Geological Survey (USGS) has announced.

The U.S. Geological Survey recorded a 4.1 earthquake near Dillon just before 1 a.m. on Monday.The quake was recorded 12 ...

Saturday's earthquake was the seventh of magnitude 3 or greater since Sept. 12, when a magnitude 4.7 earthquake just north of ...

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

The quakes were at the western edge of the McGee Ranch of the Hanford Reach National Monument, according to the Pacific ...

Scientists are installing multiple temporary seismic monitoring stations to get a better understanding of the sharp increase ...

TRI-CITIES, Wash. - Mount Adams, the largest active volcano in Washington State, recently experienced an unusual increase in ...

Some Northern California residents woke up to 3.6 magnitude earthquake Saturday morning, according to the United States ...

Despite the unusual activity, the USGS stated there is no indication that the increase in earthquakes is cause for concern.

The agency says, "there is no indication that the level of earthquake activity is cause for concern," but more monitoring will help geologists understand the full extent of activity at the site.