Natural Hazards

Getting a bigger jump on earthquakes

See allHide authors and affiliations

Science  05 Dec 2014:
Vol. 346, Issue 6214, pp. 1196
DOI: 10.1126/science.346.6214.1196-h

Cleaning up after the 2014 Napa, California, earthquake

PHOTO: LIU YILIN XINHUA NEWS AGENCY/NEWSCOM

Developing better earthquake early warning (EEW) systems, which could help lessen earthquake damage, requires operational testing. Grapenthin et al. present a performance analysis of ShakeAlert, an EEW demonstration system along the western coast of the United States, during the 2014 magnitude 6.0 Napa earthquake. The system uses a real-time GPS network to pick up very early shaking and quickly estimate earthquake size and location. ShakeAlert successfully provided a slip model of the earthquake after only half a minute of shaking. The Napa quake shows that ShakeAlert works well and provides vital information on how EEW systems can be improved.

Geophys. Res. Lett. 10.1002/2014 GL061923 (2014).

Navigate This Article