3.8, 1.4 magnitude earthquakes near Sweeney Ridge

Breaking news

Posted by on Mon, April 18, 2011

Anyone else just feel the big jolt on the coast?  Southern California Earthquake Data Center (scedc.org) shows a 3.8 magnitud quake 2 miles SE of Pacifica.  Biggest I’ve felt in awhile!


We felt it here in So. HMB, felt like something hit the side of the house, no shaking, just a jolt.

My daughter felt it in Daly City. Rattled the toaster oven!

Yes, we felt it, a shake and a jolt.  Since it is close to us, felt larger than it was, apparently.

On Etheldore St. in Moss Beach, I felt a jolt followed by shaking for under a second.  Initial jolt sounded like large object hit house.  It was strong enough to motivate me to move to safer position.  I didn’t notice later 1.4 quake.

Jolt and sway on 4th floor in San Mateo… a reminder of SF Earthquake and Fire 105 years ago…

Oh yes, I felt it in Moss Beach.  Or rather, I heard it. I live on the ground floor of a two-story house, and I thought something big had fallen upstairs—but no one was there, and nothing seemed amiss. So I asked some neighbors, across the street, if they had heard a loud crash.  They reported having felt their house shake.

Felt it here in San Mateo.

Gee. I didn’t feel it at all!

The USGS has a “did you feel it” function at http://earthquake.usgs.gov/earthquakes/dyfi/ where everyone can report whether they felt it and the characteristics at their location.  The report for this earthquake is available at http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/nc71560691.php (I don’t know whether or not that’s a long-lasting link.)

Shortly thereafter I heard a number of sirens heading north past El Granada.  I wonder if something happened in the tunnels.

Up here (crest of the Santa Cruz Mountains in southern SM County) it felt (and sounded!) like a steady rattle, and then a jolt. Four seconds approx, and moving through our house from southeast to northwest. Quite an appropriate anniversary of the April 18, 1906 quake but thankfully without the drama and trauma! -Georgia