Posted by Amy, a resident of the Pleasanton Meadows neighborhood, on Aug 28, 2009 at 10:55 am

I heard it all the way over on the east side of Pleasanton. I have no idea what it was.

Posted by Tori, a resident of the Country Fair neighborhood, on Aug 28, 2009 at 3:33 pm

I heard it too. In my house it sounded like someone dropped a basketball on the roof. I then heard rumor it was an earthquake but didn't see anything listed on the Internet sites. Could it have been a sonic boom? That's the only other thing I could think of.

Posted by Millie, a resident of the Parkside neighborhood, on Aug 28, 2009 at 7:16 pm

I am in Parkside and heard it. It was really loud.

Someone must know what this was!

Posted by Bubba, a resident of the Highland Oaks neighborhood, on Aug 29, 2009 at 2:17 pm

I heard it too, over by Lydiksen. It reminded me of a sonic boom when I heard one long ago. I too would love to know what it was.

Posted by Stacey, a resident of the Amberwood/Wood Meadows neighborhood, on Sep 4, 2009 at 3:06 pm
Stacey is a member (registered user) of PleasantonWeekly.com

Maybe this is related.

Explosive devices found in Livermore neighborhoods Web Link