Skip to main content
U.S. flag

An official website of the United States government

September 19, 2024

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 epicenter was near Loma Prieta peak, about 9 miles northeast of Santa Cruz and 60 miles southeast of San Francisco. Below are resources to understand the significance of this earthquake, the seismic hazards in the area, and how to prepare for future events.

Take Action! 

This year's International ShakeOut Day is on October 17th, the same day as the Loma Prieta earthquake that occurred in 1989. The best way to stay safe during an earthquake is knowing what to do when the ground starts shaking. Check out the resources below for ways to practice and prepare for an earthquake. 

 

Did you feel the Loma Prieta Earthquake? Tell us!

Did you feel the Loma Prieta Earthquake? Tell us!

Sign Up for ShakeAlert!

Sign Up for ShakeAlert!

Participate in the Great ShakeOut on October 17, 2024

Participate in the Great ShakeOut on October 17, 2024

Drop, Cover, and Hold On

Drop, Cover, and Hold On

Learn the Seven Steps to Earthquake Safety

Learn the Seven Steps to Earthquake Safety

Retrospective Interviews

On October 17, 1989, at 5:04 pm a magnitude M6.9 earthquake struck near Loma Prieta, California. It was a tragic reminder of the destructive power of earthquakes. However, it was also a watershed moment in seismic research. 30 years later, we revisit the earthquake through the eyes of the scientists who experienced it. And studied it. These are their stories. 

 

Video Transcript
In Part 1, scientists reminisce about where they were when the earthquake first hit and what they saw happening around them in the moments after. 
Video Transcript
In Part 2, scientists reflect on what they were feeling after the earthquake struck and their thoughts about what was yet to come. 
Video Transcript
In Part 3, scientists discuss what impact the Loma Prieta earthquake had on seismic research, what they learned from experiencing it firsthand, and how society responded with emergency preparedness to the threat of future earthquakes.  
Video Transcript
In Part 4, scientists answer a simple question: "Are we safer today than in 1989?" Their answers may surprise you. 

2019 Public Lecture: Remembering Loma Prieta

The Loma Prieta earthquake ended decades of seismic tranquility in the Bay Area - Is the earthquake threat in the Bay Area real and imminent? Up to $80 billion in earthquake mitigation investments have been made since the Loma Prieta earthquake - are we safer? Learn how Loma Prieta has led to improvements to building codes, land use, ground motion simulations, and earthquake early warning.

Video Transcript

 

 

Science Resources

 Visit the 1989 Loma Prieta earthquake event page for more details on the impact of the earthquake, liquifaction maps, and more. Did you feel shaking from the Loma Prieta earthquake? Record your experience in a "felt report." Want to dive deep into what we've learned about the 1989 quake -- Check out our USGS Professional Papers. 

 

Earthquake Event Page

Earthquake Event Page

Did you feel the Loma Prieta earthquake? Tell us!

Did you feel the Loma Prieta earthquake? Tell us!

Professional Papers

Professional Papers

Multilingual Resources 

Protecting Your Family From Earthquakes— The Seven Steps to Earthquake Safety

Español and English

Chinese, Vietnamese, Korean, and English

 

Get Our News

These items are in the RSS feed format (Really Simple Syndication) based on categories such as topics, locations, and more. You can install and RSS reader browser extension, software, or use a third-party service to receive immediate news updates depending on the feed that you have added. If you click the feed links below, they may look strange because they are simply XML code. An RSS reader can easily read this code and push out a notification to you when something new is posted to our site.

Was this page helpful?