Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

California to test earthquake warning system

Researchers in California are reported to be testing an earthquake warning system similar to that which was credited with saving thousands of lives in Japan during the earthquake in March.

The $2M (£1.3M) test system uses underground seismic monitors to send warnings when seismic P waves — known as primary waves or pressure waves — are detected after an earthquake, but before the potentially more dangerous S waves — known as secondary waves or shear waves — are triggered. The full system is expected to cost £51M and take five years to build.

US Geological Survey director Marcia Nutt said that the US must learn from the Japan’s experience of using the warning system during the devastating earthquake earlier this year.

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions. Please note comments made online may also be published in the print edition of New Civil Engineer. Links may be included in your comments but HTML is not permitted.