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Explore Search: ShakeAlert Earthquake Early Warning (EEW) system

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Performance-based earthquake early warning for tall buildings

Featured Story
a solar panel powering a seismometer peeks out of trees in the Shasta-Trinity National Forest

Earthquake Detected! Here’s How You Can Prepare

publication
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Incorporation of real-time earthquake magnitudes estimated via peak ground displacement scaling in the ShakeAlert Earthquake Early Warning system

faq
Early Earthquake Warning diagram (click image for full details)

How do I sign up for the ShakeAlert® Earthquake Early Warning System?

Presentations and Events

PubTalk 1/2018 — ShakeAlert: Path to West Coast EQ Early Warning

publication
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Testing the ShakeAlert earthquake early warning system using synthesized earthquake sequences

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Data Release for Latency Testing of Wireless Emergency Alerts intended for the ShakeAlert earthquake early warning system for the West Coast of the United States of America

publication
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ShakeAlert Earthquake Early Warning System Performance During the 2019 Ridgecrest Earthquake Sequence

Posters
September Public Lecture Flyer

September Public Lecture Flyer, 2022

publication
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Technical implementation plan for the ShakeAlert production system: an Earthquake Early Warning system for the West Coast of the United States

publication
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Earthquake early warning for estimating floor shaking levels of tall buildings

publication
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The impact of 3D finite‐fault information on ground‐motion forecasting for earthquake early warning

publication
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Revised technical implementation plan for the ShakeAlert system—An earthquake early warning system for the West Coast of the United States

Photography
A USGS technician services a ShakeAlert sensor station in the San Francisco Bay area

ShakeAlert sensor station being serviced by USGS personnel

National News Release
gray-scale map of San Francisco Bay area

All Systems Go for First Statewide Testing of ShakeAlert in the United States

publication
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Commentary: The role of geodetic algorithms for earthquake early warning in Cascadia

publication
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Development of a geodetic component for the U.S. West Coast Earthquake Early Warning System

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Alert optimization of the PLUM earthquake early warning algorithm for the western United States

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Real-time earthquake detection and alerting behavior of PLUM ground-motion-based early warning in the United States

publication
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Considerations for creating equitable and inclusive communication campaigns associated with ShakeAlert, the earthquake early warning system for the West Coast of the USA

publication
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Event detection performance of the PLUM earthquake early warning algorithm in southern California

Research
Two panels showing California map and red line for rupture of fault

Earthquake Early Warning – Fine-Tuning for Best Alerts

publication
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Peak ground displacement saturates exactly when expected: Implications for earthquake early warning

B-roll

ShakeAlert Sensor and Station

Featured Story
Mexico City after Sept. 19, 2017 earthquake

USGS Scientist Mobilizes with Recon Team to Learn from Mexico's Earthquake Early Warning System

National News Release
USGS science for a changing world logo

USGS Awards $4 Million to Support Earthquake Early Warning System in California and Pacific Northwest

publication
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Earthquake early Warning ShakeAlert system: West coast wide production prototype

publication
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Research to improve ShakeAlert earthquake early warning products and their utility

General
USGS

19-24. Rapid, robust characterization of earthquake uncertainties for advanced monitoring and research applications