Earthquake Hazards

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Filter Total Items: 107
Date published: May 19, 2017

EarthWord–Strike-Slip Fault

This EarthWord isn’t a new dance-move; it’s been around since we’ve had tectonic plates...

Date published: May 18, 2017

Media Advisory: Earthquake Country Alliance at USGS

Members of the news media are invited to attend the next Earthquake Country Alliance - Bay Area Regional Workshop to be held at the U.S. Geological Survey in Menlo Park on May 23. ECA workshops are educational and informational opportunities to learn more about the latest in earthquake science, preparedness, and mitigation, as well as to arrange interviews with subject matter experts.

Date published: May 15, 2017

EarthWord–Hazard

It’s not just something you run into on a golf course-it’s this week’s EarthWord!

Date published: May 15, 2017

The USGS ShakeCast System

Early on the morning of August 24, 2014, Loren Turner was awoken by clattering window blinds, a moving bed, and the sound of water splashing out of his backyard pool. He experienced what is now named the “South Napa Earthquake.” 

Date published: April 28, 2017

Hazard a Guess? The riskiest science quiz you will ever take!

Which U.S. State or territory has more large earthquakes than the rest of the United States combined?

Date published: March 20, 2017

Enormous Caribbean Waves Before 1492

Geologists have discovered evidence that unusual seas detached living corals from a Caribbean reef and scattered them far inland, as boulders, during the last centuries before Columbus arrived. The new findings will reinforce precautions against coastal hazards, Caribbean tsunami specialists said.

Date published: February 17, 2017

A Fresh Look at Old Data Sheds Light on Central U.S. Quake Origins and Potential

Small variations in the density of the earth’s crust—undetectable to humans without sensitive instruments—influence where earthquakes may occur in the central United States. These new findings from the U.S. Geological Survey, published today in Nature Communications, may allow scientists to map where future seismicity in the center of the country is most likely.

Date published: February 2, 2017

Community Announcement: USGS Ground Motion Study in the Walnut Creek/Concord Area Looking for Volunteers

The U. S. Geological Survey is seeking volunteers to host temporary seismic stations in the Walnut Creek/Pleasant Hill/Concord California area. Volunteers will be assisting with a new ground motion study that will begin in March 2017.

Date published: December 13, 2016

Hazard a Guess? The riskiest science quiz you will ever take!

What is causing most of the induced earthquakes (aka man-made earthquakes) we’ve seen recently in the central United States?

Date published: November 1, 2016

Some Early 20th Century Earthquakes in Los Angeles Area Might Have Been Man-Made

A new study from the USGS suggests that some early 20th century earthquakes in southern California might have been induced (man-made) by past practices that were used by the oil and gas industry.

Date published: October 30, 2016

Magnitude 6.6 Earthquake in Italy

A magnitude 6.6 earthquake struck Italy on October 30, 2016 at 06:40:19 UTC (7:40 am local time). This is reportedly the largest earthquake in Italy since the magnitude 6.9 Irpinia earthquake struck southern Italy in 1980. 

Date published: October 26, 2016

Magnitude 6.1 and 5.5 Italy Earthquakes

A magnitude 6.1 earthquake struck Italy on October 26, 2016 at 19:18:08 UTC (9:18 pm local). A magnitude 5.5 earthquake struck earlier at 17:10:37 UTC. Numerous smaller aftershocks have also occurred.