Bay Area Earthquakes Did you feel it? Earthquake rattles Silicon Valley May 9, 2013 SCAdmin A magnitude 3.5 earthquake caused some mild shaking in the East San Jose foothills. The quake was centered 6 km deep underground and occurred at 10:12 PM local time. Earthquake Shake Map courtesy USGS Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)