EARTHQUAKE IN SOUTHERN CALIFORNIA

USGS ^ | 7/29/08

[Ernest_at_the_Beach]

Down here by the beach....it seemed to just keep shaking....much more than 30 seconds....

[RightWhale]

what if that was just a pre-shock?

Not likely. The first one is the main event, then come aftershocks of lesser magnitude.

[TenthAmendmentChampion]

Fresno is on a big old plain of dirt, we are fine.

[xzins]

Our prayers are with you, yours, and your desk.

[Lucky9teen]

I believe it was 8.9 and I meant to say 1994 (not 2004). January 17, 1994 at 4:31am. I had to get 19 stitches from lacerations I received while trying to escape the building. Ugh. I don’t like earthquakes.

[COBOL2Java]

LA Times: 5.8 earthquake rocks L.A. area

[NormsRevenge]

3 3.8 aftershocks in Diamond Bar area..

should be OK,, some shaking may ensue. :-)

[doug from upland]

It won’t be too much longer until I am antagonizing leftists south of Seattle.

[Myrddin]

Perfect timing. My plane leaves for San Diego at 3:17 MDT.

[Smogger]

I live in Ontario as does my Mom, my best friend lives in Upland. Glad to hear that there is no damage there. We were in Brea and the shaking was quite intense and very long. Worst I have felt since the Upland quake in 90.

[dragnet2]

Well see if the moderators put up with AHs like you here.

[DoughtyOne]

LOL

[Czar]

Pretty strong shake down here (Orange County, North Tustin Foothills).

Man, I hate these things.

Our doberman was not amused...

Fires last year, very close to us, fires all over the place again this year, and now--a real shaker.

[WestCoastGal]

Be careful out there..............

The Elsinore Fault Zone is a large geologic fault structure in Southern California.

The Elsinore fault zone runs from the mountainous region between El Centro and San Diego, northwest to Chino Hills. On the southern end of the fault zone is the southeastern extension of the Elsinore fault zone, the Laguna Salada Fault. At its northern end, the Elsinore fault zone splits into two segments, the Chino Fault and the Whittier Fault.

The Elsinore fault zone, not including Whittier, Chino, and Laguna Salada faults, is 180 kilometers (111 miles) long. Its slip rate is 4.0 millimeters/year (0.15 in/yr). It is estimated that this zone is capable of producing a quake of MW6.5 - 7.5 on the moment magnitude scale. The projected interval between major rupture events is 250 years.

The main fault zone is one of the quietest in California, producing only one quake above a magnitude of 5.2 in known history, an estimated magnitude 6 on the Richter Scale in 1910 but the quake did little damage and produced no surface rupturing.

[ErnBatavia]

Here in the eastern Coachella Valley, I'd guess we're 90 miles or so from Chino Hills....but we heard a snap (like a dove flying into the sliding glass door), followed up by a good thump about 6 or 7 seconds later.

Checking the USGS site, we were surprised that this wasn't just one of those little Anza-Borrego 4-pointers.

[sofaman]

stong? Is that like hugh? And series? You had me chickling at that one, like Tony Snoq said on the Marl Levin thread.

[lainie]

Um... if there was an 8.9 in the San Fernando Valley four years ago, more of us would remember it. And the SFV wouldn’t be there anymore.

[MarineBrat]

I never felt a thing, and I’m 60 miles closer than JimRob.

[Sammie42]

LOL, your post on the Rush thread scooped Fox News. Glad that everyone is okay

[tx_eggman]

I was there for the 8.9 one in 2004

What was the magnitude?

The 2004 Parkfield quake was a 6.0