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Earthquake Magnitude 6.9 - OFF THE COAST OF NORTHERN CALIFORNIA
USGS Earthquake Hazards ^ | June 16, 2005 | USGS

Posted on 06/16/2005 11:37:16 PM PDT by bd476

Edited on 06/16/2005 11:53:39 PM PDT by Sidebar Moderator. [history]

Magnitude 6.9 - OFF THE COAST OF NORTHERN CALIFORNIA 2005 June 17 06:21:45

UTC Preliminary Earthquake Report
West Coast and Alaska Tsunami Warning Center/NOAA/NWS

A strong earthquake occurred at 06:21:45 (UTC) on Friday, June 17, 2005. The magnitude 6.9 event has been located OFF THE COAST OF NORTHERN CALIFORNIA. (This event has been reviewed by a seismologist.)

Magnitude 6.9 Date-Time Friday, June 17, 2005 at 06:21:45 (UTC) = Coordinated Universal Time Thursday, June 16, 2005 at 10:21:45 PM = local time at epicenter

Location 40.605°N, 126.284°W Depth 45 km (28.0 miles) set by location program Region OFF THE COAST OF NORTHERN CALIFORNIA Distances 171 km (106 miles) W (272°) from Ferndale, CA 172 km (107 miles) W (281°) from Petrolia, CA 176 km (109 miles) W (266°) from Humboldt Hill, CA 180 km (112 miles) W (264°) from Eureka, CA 458 km (285 miles) NW (315°) from San Francisco City Hall, CA

Location Uncertainty Error estimate not available Parameters Nst=033, Nph=033, Dmin=217.5 km, Rmss=0.94 sec, Gp=202°, M-type=moment magnitude (Mw), Version=1 Source West Coast and Alaska Tsunami Warning Center/NOAA/NWS

Event ID at00000366


TOPICS: Breaking News; News/Current Events; US: California; US: Oregon
KEYWORDS: earthquake; eq; quake; quakeswarm
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To: bert
For what period of time is this map?

Carolyn

221 posted on 06/17/2005 6:18:45 AM PDT by CDHart (The world has become a lunatic asylum and the lunatics are in charge.)
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To: bert; Echo Talon
"Think New Madrid Fault...... :-( "

I used to live in western Kentucky and I felt much safer when I moved to Florida because I knew the New Madrid would "pop" one day. Now excuse me while I go look for hurricane supplies. (I live where Charley, Frances and Jeanne crossed in Polk County.)*snicker*
222 posted on 06/17/2005 6:19:33 AM PDT by DocRock
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To: kx9088
Cali will be hit by a big one, bigger than anyone has every imagined!

Might as well rename it Neverland. If that happens, California will get off like Jackson. Off the continent like the New Agers have been predicting.
Which would double the available beachfront, anyway...

223 posted on 06/17/2005 6:20:42 AM PDT by Graymatter
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To: WestCoastGal
I probably messed up the link. Let me try again :)

From this link:

...The Landers temblor, however, permanently changed the established view of earthquake sequences. In the minutes and days that followed the quake, a substantial number of smaller seismic events occurred well beyond its aftershock zone--as far away as the Lassen Peak area and at the Geysers, about sixty miles north of San Francisco. The largest of these distant events, with a magnitude of 5.4, struck in western Nevada twenty-two hours after the Landers event. Quickly dubbed remotely triggered earthquakes, these outlying seismic events seemed to be different beasts from anything seismologists had previously encountered...

...One possibility is that earthquakes--all earthquakes--represent nothing more than cracks in the earth that grow very, very slowly in response to the forces applied on them, until the cracking process accelerates into a runaway failure. Such a phenomenon would be analogous to cracking in rocks, a process that can be studied in detail in laboratory experiments. The final kick that initiates the runaway process might be infinitesimally small-perhaps nothing more than the final grain of sand landing atop the increasingly unstable sandpile. Or, as in the case of triggered events, it might be an abrupt kick, delivered by the shaking from a distant earthquake.

The idea of earthquakes as the culmination of runaway crack growth is not new. What is new is that we can now quantify the type of shaking that does, and does not, produce additional earthquakes at distant points. Preliminary results suggest that only quakes close to or above magnitude 7.0 will produce remotely triggered events. Seismologists are able to make rocks crack in the laboratory, but we have a very limited ability to test the conditions under which actual faults in the crust rupture. We now know that, at least once in a while, the ground beneath our feet performs its own experiments, giving us important new information about how earthquake ruptures occur. And some of these experiments have been available to us all along. The old data just had to wait for new eyes--eyes aided by years of accumulated scientific understanding.

224 posted on 06/17/2005 6:21:35 AM PDT by mewzilla
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To: mewzilla

Thank you.

I remember Landers very well, lived in the Palm Springs area at the time. Quite a ride, "E" ticket to be sure.

First Landers and then an hour later Big Bear, kept us jumping. Did one trigger the other was the question at the time. I do remember talk about the volcanic areas chiming in after that quake (Lassen, Geysers etc). I believe the Geysers were active again this time after the offshore quake. Not sure about the Anza quake prior to that.


225 posted on 06/17/2005 6:38:25 AM PDT by WestCoastGal (Jr "Elvis made a few bad movies," he grinned. "This too shall pass.")
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To: inkling

Image hosted by TinyPic.com

Hmmmm... it's summer recess, isn't it? Maybe Boxer, Feinstein, and Lee are home.

226 posted on 06/17/2005 6:40:51 AM PDT by Pirate21 (Bush-Cheney-Rice-Rumsfeld -- The Awesome Foursome)
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To: BigSkyFreeper
Didn't feel that one. Petrolia is about 30 miles south of me. Only a couple of marijuana growers and about 10 cows on that hill. (OK, 10 marijuana growers and 2 cows)

The Russ Brothers run a few more cows than that at Ocean Ranch...

227 posted on 06/17/2005 6:44:38 AM PDT by tubebender (Growing old is mandatory...Growing up is optional)
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To: DonnerT
Looks like things are loosening up for the axis shift.

Sale on ski-parka's!

228 posted on 06/17/2005 6:44:44 AM PDT by johnny7 ('Mama T' has seen her husbands 'dishonorable discharge'.)
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To: bd476

Please add me to your list.


229 posted on 06/17/2005 6:47:55 AM PDT by Grampa Dave (The MSM has been a WMD, Weapon of Mass Disinformation for the Rats for at least 5 decades.)
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To: sweetliberty
Sounds like it's about time to bail out there or pretty soon you'll be communicating by smoke signals from the island formerly known as Fairyland California.

I'd leave, but there is the matter of the spouse, who grew up here. As far as he is concerned, there isn't anyplace else to live. We'll see if he changes his tune after a few more sessions of the state legislature. They're cooking up some stuff that just might shake him loose.

230 posted on 06/17/2005 6:49:30 AM PDT by .38sw
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To: Anti-Christ is Hillary

Jim's base of operation is in Fresno, not San Francisco.


231 posted on 06/17/2005 6:53:36 AM PDT by mrs tiggywinkle
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To: bd476

Wow. If you live in California, HANG ON!!


232 posted on 06/17/2005 6:55:12 AM PDT by Excuse_My_Bellicosity (Proud infidel since 1970.)
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To: Graymatter
Prediction: When the long-awaited B1 hits, scientists will announce a new fault line, and if it is not named after our President, well that's just plain wrong. Bush's Fault underlies everything on the Left Coast, in all but name.

OMG!....LMAO!

233 posted on 06/17/2005 6:55:13 AM PDT by BureaucratusMaximus (Socialists are blessed with the desire to serve others. That's why most of them work @ McDonalds)
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To: bd476

California has been riding the tilt-a-whirl lately.


234 posted on 06/17/2005 6:55:51 AM PDT by Excuse_My_Bellicosity (Proud infidel since 1970.)
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To: tubebender; little jeremiah

Did you guys feel that one.

It may have awaken us for a minute or two when it hit. I don't remember anything.


235 posted on 06/17/2005 7:04:43 AM PDT by Grampa Dave (The MSM has been a WMD, Weapon of Mass Disinformation for the Rats for at least 5 decades.)
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To: Central Scrutiniser
(note, the odds on EVERYTHING are 50/50, either they will happen, or they will not)

What about the odds that a Democrat will support the enemies of America?

236 posted on 06/17/2005 7:08:31 AM PDT by Scott from the Left Coast
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To: WestCoastGal

I don't want to sound like I don't understand this...But I don't understand that post. Can you rephrase the technical stuff for me?


237 posted on 06/17/2005 7:09:01 AM PDT by queenkathy ("Eat a live toad first thing in the morning. Nothing worse can happen to you for the rest of the day)
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To: Mo1

Man that place is jumpin'!


238 posted on 06/17/2005 7:15:52 AM PDT by rintense
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To: BigSkyFreeper
COOL!!! Another one!!

Cool?

Where do you live?

Have you ever looked up at the sky and said "Cool, another F5 tornado"?

239 posted on 06/17/2005 7:16:17 AM PDT by P-Marlowe
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To: Grampa Dave
I went to bed at 10:30 and did not feel a thing. We are getting a lot of rain which in very unusual even here in Eureka.

If you remember, we had three big quakes in 1992 in less than 24 hours. 6.5 to 7.1 I believe so we have at least one to go. Unnngh...

240 posted on 06/17/2005 7:17:17 AM PDT by tubebender (Growing old is mandatory...Growing up is optional)
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