More than 150 earthquakes have rocked a few Bay Area suburbs since November. Contra Costa County residents want to know what keeps shaking their homes, but federal seismologists don’t quite understand either. So to find out, scientists buried a web of sensors across San Ramon and Danville.

<p>More than 150 earthquakes have rocked a few Bay Area suburbs since November. Contra Costa County residents want to know what keeps shaking their homes, but federal seismologists don&rsquo;t quite understand either. So to find out, scientists buried a web of sensors across San Ramon and Danville.</p>

KQED serves the people of Northern California with a community-supported alternative to commercial media. We provide citizens with the knowledge they need to make informed decisions; convene community dialogue; bring the arts to everyone; and engage audiences to share their stories.

<p>KQED serves the people of Northern California with a community-supported alternative to commercial media. We provide citizens with the knowledge they need to make informed decisions; convene community dialogue; bring the arts to everyone; and engage audiences to share their stories.</p>