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Update: Two Earthquakes Rattle East Bay Friday Morning

Two back-to-back quakes – with preliminary magnitudes of 2.3 and 2.7 centered in Berkeley near the Claremont hotel – jostled the East Bay this morning at 9:25, according to the USGS. They follow a 2.3 temblor Wednesday night in the same area.

Update, Sept. 28, 11:40 p.m.: The U.S. Geological Survey recorded a third earthquake for Friday at the same location in Berkeley. The latest one was at 11:30 p.m. and had a preliminary magnitude of 1.4, smaller than the two that occurred 14 hours earlier.

Two earthquakes centered in Berkeley hit at 9:25 a.m. this morning, Friday.

They registered preliminary magnitudes of 2.3 and 2.7 and were centered about 1,000 feet southwest of the Claremont Resort along the Hayward Fault, according to data from the U.S. Geological Survey.

The quakes come on the tail of a 2.3 magnitude shaker centered near the Claremont Resort Wednesday night.

The Hayward Fault runs along the East Bay hills from Fremont to San Pablo Bay and goes directly beneath the Cal football stadium. Its slip rate, estimated to be about 1/3-inch per year by 2003 Working Group for California Earthquake Probability, generates a number of local quakes. The fault is considered a prime candidate for a major quake.

Did you feel this morning's quakes? Let us know in comments.

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Ari Soglin (Editor) September 28, 2012 at 01:54 pm
Felt it in Albany, but it was such a short jolt that I didn't think it was an earthquake.
Robert Marshall September 28, 2012 at 02:10 pm
Didn't realize there was two quakes. Just felt like one to me.
SevenMary7 September 28, 2012 at 02:16 pm
2.3 and 2.7???? Are you kidding me? I get more of a rattle when a truck passes by my place.
John Cowee September 28, 2012 at 02:25 pm
Very short and mild jolt. Like a strong wind hitting the house.
John Cowee September 28, 2012 at 02:26 pm
Very short and mild jolt. Like a strong wind hitting the house.
Charles Burress (Editor) September 28, 2012 at 03:46 pm
The USGS data shows two separate quakes, though just a third of a second apart. In El Cerrito, I felt two separate bumps.
The Merry One September 28, 2012 at 04:13 pm
Didn't feel a thing on the other side of the tunnel.
Bob Brittain September 28, 2012 at 04:58 pm
Not worth mentioning anything under 3.0.
Zoe Claire September 28, 2012 at 05:19 pm
Agree
Kathy A. September 28, 2012 at 07:26 pm
I didn't feel these -- was away from home and moving about -- but definitely have felt ones in that range that were centered in EC. Of interest.
Julian Derek Ford September 28, 2012 at 07:56 pm
Yes i felt it, very short jolt. Two nights ago I had a dream that there was a very violent quake in the Bay Area with SF receiving the brunt of most of it. Buildings falling into the streets, people thrown out of their beds, alot of damage. Don't laugh in Sept 1989 while living in WDC, I had a similar dream where I saw the Bay Bridge collapse along with part of Nimitz Fwy, also saw the fires in North beach. I even called the police dept telling them within 30 days the quake would happen, then I described my dream.to the desk sgt. and we all know what happen. I have had similar experiences in Santa Rosa, Palm Springs, Los Angeles, Mariposa, Newark and now Oakland.
Amanda September 28, 2012 at 08:40 pm
There WAS an earthquake two nights ago. At about 10:25.
Deborah Henderson September 29, 2012 at 06:04 am
I didn't feel much in El Cerrito, but I've learned to identify the sounds in the house - they are different than at any other times... they say "earthquake" !
Mary September 29, 2012 at 12:06 pm
My house rattled just a bit. It was so slight that I wasn't sure if it was a quake or something from the construction workers next door. I live on Derby, about a mile from the epicenter.
Mary September 29, 2012 at 12:09 pm
It is worth mentioning, because it is a sign that seismic activity is increasing, and that we may be heading for a big one.
Joan Roos September 29, 2012 at 02:03 pm
Yes, I did mean to look it up to see if it was an earthquake but never got to it.
Mary September 29, 2012 at 07:53 pm
It could be a conicidence. After all, there are about 7 billion people on earth, and virtually all of them sleep at night (or in the daytime if they work a night shift). Most of them dream just about every night, and certainly some of those dreams are about earthquakes. There are earthquakes in California virtually every day, although most of them are small. So certainly somebody's earthquake dream will coincide with a big one sooner or later.
Marcy Greenhut September 30, 2012 at 12:44 am
Yep, I felt the two on Thurs. morning, but not the Wed. night one. I was sure I could HEAR the 2.3 before the 2.7, but USGS didn't list it. Upstairs in my old wood house, you feel everything. I'm due west of Adeline & Alcatraz.
Julian Derek Ford September 30, 2012 at 01:52 am
Mary, I disagree, Five out of six of my dreams resulted in actually happened excactly like I saw in my dreams. Especially when they are identical. Yes, I am sure some people dream of quakes and maybe they will come to pass. But to actually see the collapse of part of the Bay Bridge, Seeing the fires in North Beach, and then the pan caking of the Nimitz Fwy, was not a coincidence, it was warning.
Carol Seed September 30, 2012 at 09:57 am
Earthquakes happen when pressure builds up on the fault line... if the pressure is released bit by bit in the smaller quakes we are actually LESS likely to have a big quake.... if we don't get these smaller quakes we are more likely to have one of 6.0 or higher. My father who was an earthquake expert told me that California gets 3-4 small earthquakes a day. I live in Walnut Creek and I felt it, and I was just glad that my new gas meter earthquake valve box was not tripped to OFF position by the small quake which occurred at the same time that a garbage truck was on my street emptying the blue garbage bin.
Diana lee October 1, 2012 at 06:18 pm
Julian, do you feel a bigger quake is going to hit the bay area?
Just curious about that and the newpark dream
Deb October 1, 2012 at 09:33 pm
Mary, thanks for the level-headed way to look at this. Still, Julian, that must be a bit freaky. Wow.
Note Article
Just a short thought to get the word out quickly about anything in your neighborhood.
Share something with your neighbors. Write a new post... What's up? Make an announcement, speak your mind, or sell something
ted friedman June 18, 2013 at 10:08 pm
The name is weirdly spelled, but not this weird. It's Caffe, not Caffee. I've only typed these wordsRead More a thousand times.
ted friedman June 19, 2013 at 11:06 am
Correction. Your Patch editor, Charles Burress is misspelled here.
ted friedman June 19, 2013 at 11:09 am
I could blame those cut-ups, typographers in the basement typing onto big circular steel plates