Earthquake Hazards Program

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Date published: November 5, 2021

First Draft of the SZ4D Implementation Plan

Members of the Subduction Zones in 4-Dimensions (SZ4D) initiative are pleased to present to you the first draft of the SZ4D implementation plan.

Date published: October 14, 2021

ShakeOut 2021: Earthquake Awareness Enables Community Preparedness

Get ready to shake it like it’s real! ShakeOut 2021:  Drop (or Lock), Cover, and Hold On!

Date published: September 29, 2021

Opportunity to Provide Feedback for SZ4D Program

To those interested in USGS SZS and the SZ4D Initiative (Subduction Zones in Four Dimensions)...

Date published: September 10, 2021

USGS Hazards Science – Be Informed and Be Prepared

Read below to learn about USGS hazards science, National Preparedness Month, and resources available to explore various hazards in more detail or sign up for alerts.

Date published: September 8, 2021

Magnitude 7.0 Earthquake near Acapulco, Mexico

A magnitude 7.0 earthquake struck Acapulco in Oaxaca, Mexico on September 7, 2021 at about 9:48 pm Eastern Daylight Time (September 8 at 01:48 UTC). 

Date published: August 4, 2021

10-Year Anniversary of US’s Most Widely Felt Earthquake

Ten years ago, in the early afternoon of August 23, 2011, millions of people throughout the eastern U.S. felt shaking from a magnitude 5.8 earthquake near Mineral, Virginia. No lives were lost, something experts called “lucky” given the extent of shaking, but property damage was estimated to be in the range of $200 to $300 million.

Date published: July 29, 2021

Magnitude 8.2 Earthquake in Alaska

A magnitude 8.2 earthquake struck 50 miles south of the Alaska Peninsula on July 28, 2021 at 10:15 pm local time (July 29, 2021 06:15 UTC). Seismic instruments indicate the earthquake originated at a depth of 20 miles (32.2 kilometers). 

Date published: July 8, 2021

USGS Participation in the Annual Natural Hazards Research and Applications Workshop

This year's Annual Natural Hazards Research and Applications Workshop, coordinated by the Natural Hazards Center at CU Boulder on July 11 – 14, 2021, is the 46th and will be organized around the theme of The Hazards and Disaster Workforce: Preparing to Meet 21st Century Challenges. Check out these sessions, posters, and research highlights featuring the USGS Risk Community of Practice members...

Date published: July 8, 2021

Magnitude 6.0 Earthquake in California

A magnitude 6.0 (M6.0) earthquake struck Little Antelope Valley, California near the Nevada border on July 8, 2021 at 3:49pm local time (July 8 at 22:49 UTC). 

Date published: July 8, 2021

A Fixed Smartphone Network Offers Inexpensive Earthquake Early Warning Potential

A new study led by USGS and Costa Rican researchers demonstrates how Earthquake Early Warning using smartphone technology can be both inexpensive and effective for millions of people.