Related Information Earthquake Archives Earthquake FAQ The San Ramon Sequence, Nov. 27 Seismicity in the San Ramon-Danville-Alamo Region 1969-2003

Headlines • Magnitude 7.6 - PAKISTAN, October 8, 2005 • Magnitude 6.1 Near the South Coast of Honshu, Japan, July 23, 2005 • Yet Another, 6.7 Quake Off The Coast Of Northern California, June 16, 2005 • 3rd Quake To Strike California This Week, June 16, 2005 • Tsunami Warning Cancelled After Magnitude 7.2 Off the Coast of Northern California, June 15, 2005 • Magnitude 8.7 - Northern Sumatra, Indonesia, March 28, 2005 • Earthquake Down Under - Magnitude 7.1 rattles Indonesia and Australia, March 2, 2005 • Worlds Strongest Quake in 40 Years Strikes Northern Sumatra: Tsunami Deal Toll Approaching 300,000, December 26, 2004 • Magnitude 7.0 - Hokkaido, Japan Rregion, November 28, 2004 • Magnitude 7.2 - Papua, Indonesia, November 26, 2004 • Magnitude 7.1 - Off West Coast Of The South Island, N.Z., November 22, 2004

On Febuary 2, 2003 a new swarm of quakes have begun to shake the east bay again. This earthquake sequence is located within the Calaveras fault zone and immediately to the south of the November 2002 swarm.

Starting from around 8:19am (PDT) up to the time I posted this article (11:39am), we have experienced 23 earthquakes. 5 of the quakes have registered 3.0 or greater, with the strongest being 4.2 (which shook me off of the couch and onto the computer).

This series of quakes are a little stronger than the previous swarm. Preliminary locations reveal a trend parallel to the Calaveras fault.

So far, there have been no reports of damage. Immediately following the quake, I walked around my neighborhood to check if everything was ok. I did hear a few police sirens occasionally, here in Concord, but I don't notice any physical damage to any structures in the neighborhood.

If you have experienced the quakes, and would like to share your story, email us at comments@earthquakeadvisor.com.

Recent studies show a 70% probability that a quake as large or larger than the Loma Prieta quake will hit the Bay Area between now and 2030. Click here for more information.