I'm not sure but think there was a small tremor this morning. At about 6:15 am I was woken up by something rattling on my dresser, a post effect.
Or maybe it was caused by a large truck driving by?
http://quake.usgs.gov/recenteqs/Maps/SF_Bay.html
Or maybe it was caused by a large truck driving by?
http://quake.usgs.gov/recenteqs/Maps/SF_Bay.html