In late December 2004, one of the world’s most powerful earthquakes ever struck near Sumatra. This is the story of how USGS responded to the event as...

Set a reminder for 10:17 a.m. on Oct. 17 and join FEMA, USGS, and millions of others for the world’s largest preparedness drill.

‘Did you feel it’ reporting available in multiple languages 

On October 17, 1989, at 5:04 PM, a 6.9 magnitude earthquake hit near Loma Prieta, CA., shaking the San Francisco and Monterey Bay regions. The...

RSVP requested to Heidi Koehler by 5 p.m. Thursday, Sept. 5, hkoehler@usgs.gov, 720-320-1246  

If you’d like to speak with a USGS scientist before...

On March 27, 1964 at 5:36 p.m. local time an earthquake of magnitude 9.2 occurred in the Prince William Sound region of Alaska, approximately 15.5...

GOLDEN, Colo.  —  A new scientific mechanism for assessing the potential risk to worldwide mineral commodity supplies from seismic activity has been...

Ocean-bottom seismographs are valuable tools for studying marine geohazards like subduction zone earthquakes. The USGS has partnered with the Woods...

On July 4th, 2019, as millions of Southern Californians looked forward to fireworks and other celebrations, earthquake shaking rumbled across much of...

WHITEHOUSE STATION, N.J. – A U.S. Geological Survey team has begun a seismic sensor deployment in an effort to capture aftershock data following the 4...