An earthquake just shook my building for 2 to 3 seconds. I live on "good" ground in the Marina District here in San Francisco. It felt as if a truck had hit our building... a real quick jolt. I just checked the USGS earthquake site quake.usgs.gov to verify that it was a quake, but it was obvious having felt other similar earthquakes over the years.
Alamo is a town in between Walnut Creek and Danville, East Bay towns about 29 miles from San Francisco, or maybe 25 as the crow flies. I'm quite curious what it felt like on top of the center. Any comments from locals in the East Bay?