ALERT 6.0 Earthquake off Coast of Oregon

mindblow

Contributing Member
Magnitude 6.0 - OFF THE COAST OF OREGON
2012 February 15 03:31:20 UT
Magnitude 6.0
Date-Time Wednesday, February 15, 2012 at 03:31:20 UTC
Tuesday, February 14, 2012 at 010:31:20 PM at epicenter EST


Location 43.536°N, 127.381°W
Depth 10 km (6.2 miles)
Region OFF THE COAST OF OREGON
Distances 256 km (159 miles) W of Coos Bay, Oregon
293 km (182 miles) WSW of Newport, Oregon
302 km (187 miles) NW of Brookings, Oregon
380 km (236 miles) WSW of SALEM, Oregon

Location Uncertainty horizontal +/- 19.7 km (12.2 miles); depth +/- 6.2 km (3.9 miles)
Parameters NST=205, Nph=211, Dmin=282.8 km, Rmss=1.15 sec, Gp=180°,
M-type=regional moment magnitude (Mw), Version=6
Source Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
 

naturallysweet

Has No Life - Lives on TB
I'd rather this fault stayed asleep. When it goes there will be thousands dead and the entire coastline of Oregon, Washington, and Northern California will be gone.
 

Lilbitsnana

On TB every waking moment
No foreshocks anytime during the past week and over an hour later, no aftershocks yet either.

It doesn't seem right...
 

tanstaafl

Has No Life - Lives on TB
naturallysweet, that's not a fault! That's a subduction zone, and it WILL eventually let go as long as the tectonic plates keep moving.

Lilbitsnana, there have been earthquakes roughly in that area every few months for years now.

The hope is that there will be tons of these "little" earthquakes rather than the single HUGE event that is expected every 400 years or thereabouts when the entire subduction zone lets go from northern California to British Columbia. The last I heard, the science suggests the southern end of the subduction zone is more active and can let go WITHOUT the entire zone letting loose at the same time.
 

maric

Short but deadly
Maric? Ya'll OK?

PRAYERS going out to everyone in the area.

Thanks Sweetie, yeah, we're fine. We felt a hard jolt but the weirdest part of all is we were getting hail, YES HAIL when it hapeened. Just one hard, quick jolt is all we felt.
 

marsh

On TB every waking moment
They said the one at Weitchepec was not on an identifiable surface fault line. It was deep - 20 miles down?
 

NBCsurvivor

Has No Life - Lives on TB
To: U.S. West Coast, Alaska, and British Columbia coastal regions
From: NOAA/NWS/West Coast and Alaska Tsunami Warning Center
Subject: Tsunami Information Statement issued 02/14/2012 at 7:34PM PST

At 7:31 PM Pacific Standard Time on February 14, an earthquake with preliminary magnitude 5.9 occurred off the coast of Oregon .

The magnitude is such that a tsunami IS NOT EXPECTED. This will be the only WCATWC message issued for this event.

The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey or the appropriate regional seismic network.


http://wcatwc.arh.noaa.gov/2012/02/15/lzf0g9/01/messagelzf0g9-01.htm
 

maric

Short but deadly
To: U.S. West Coast, Alaska, and British Columbia coastal regions
From: NOAA/NWS/West Coast and Alaska Tsunami Warning Center
Subject: Tsunami Information Statement issued 02/14/2012 at 7:34PM PST

At 7:31 PM Pacific Standard Time on February 14, an earthquake with preliminary magnitude 5.9 occurred off the coast of Oregon .

The magnitude is such that a tsunami IS NOT EXPECTED. This will be the only WCATWC message issued for this event.

The location and magnitude are based on preliminary information. Further information will be issued by the United States Geological Survey or the appropriate regional seismic network.


http://wcatwc.arh.noaa.gov/2012/02/15/lzf0g9/01/messagelzf0g9-01.htm

But I'll bet the waves will be a little more harsh. But Thank God there is no warning.
 

tanstaafl

Has No Life - Lives on TB
Here are just a few of the earthquakes off southern Oregon in the last year alone (from my notes):

2012/02/04/Sat - 4.3 earthquake in Oregon (off the coast)

2011/10/12/Wed - 5.3 earthquake in Oregon (off the southern coast)

2011/06/18/Fri - 4.8 earthquake in Oregon (off Gold Beach), followed 4.2 event earlier in the day

2011/03/06/Sun - Earthquake swarm off the coast of Oregon (a BUNCH of 4.0 - 5.0 events)

2011/02/08/Tue - 5.2 earthquake in Oregon (138 miles west of Bandon)
 

NBCsurvivor

Has No Life - Lives on TB
Wednesday, February 15, 2012 03:31:20 UTC (GMT)
Tuesday, February 14, 2012 07:31:20 PM local time at epicenter

Earthquake initial reports at a depth of 10.00 km (6.21 mi)
 

maric

Short but deadly
It also explains why the whales have been closer to the shore. They should have migrated already but we're still seeing them. I dunno. Weird.

ETA: And the seals have been hanging out on the beach too.
 

Lilbitsnana

On TB every waking moment
The only foreshock to the 9.1 Japan quake last year was a 7.0+ quake.

Yeah, I know. I know it can happen that way and I know sometimes they are weeks and even months (some say years) before the mainshock.

I haven't been keeping up with the EQs much the last few months, just checking every once in awhile.

I guess I just picked an active past couple of day to look.
 

Lilbitsnana

On TB every waking moment
I knew they have had some off and on over the past few years, some even fairly large ones.

I can't get the pic to paste or save, but here is a link showing the last two weeks worth of EQs along the coastline.

http://www.pnsn.org/earthquakes/recent

More happening in that area than I had known about.
 

packyderms_wife

Neither here nor there.
Yeah, I know. I know it can happen that way and I know sometimes they are weeks and even months (some say years) before the mainshock.

I haven't been keeping up with the EQs much the last few months, just checking every once in awhile.

I guess I just picked an active past couple of day to look.

there were some smaller quakes prior to the 7.0+ quake but nothing out of the "ordinary" for that region and then BAM the big one happened. Btw most geologists thought that 7.0+ quake WAS the big one cause of course they were rated for a 7.9 or less quake NOT a 9.1+ quake.

The reality is some of the damage to the fukishema nuke plants most probably occurred in that 7.0+ quake and they were most probably told that that was the worst it would get and didn't plan accordingly.

This is common for the "it'll never happen to us or there's no way in hell it can happen this fast" crowd. You know them by the sh*t rings around their necks from their heads having been firmly been planted up their arses.

K-
 

Siskiyoumom

Veteran Member
If you are interested do a google search on the Cascadian Subduction Zone.

It makes for interesting reading.

The map of it at the USGS site is very clear on the impact of a quake happening in the zone.

The resulting tsunami can very well reach Japan and Alaska.

We felt the "jiggle" of the quake tonight.

We also were experiencing hail and heavy rain at the time.

Keep your shoes and flash light handy folks.

It is interesting that I came home early from work and went on a tidying up frenzy
making sure my go bag was by my bed and topped off our water supplies.

May all who reside on the west coast of the USA be kept safe and protected in the days a head.

It would behoove folks to have their emergency bag in the vehicle, go over your disaster plan for earthquakes and keep your vehicles fueled up.

Also if you heat with wood, keep a fire extinguisher handy!
 

jim_bo

Veteran Member
Don't know about anyone else but my gut feeling on these earthquakes is I believe we here in Cali are in for one major quake!

My uneducated guess would be the Mammoth mountain area or Lone Pine region, think I'll go bolt down my antique hutch!

Jim_bo
 

Double_A

TB Fanatic
Don't know about anyone else but my gut feeling on these earthquakes is I believe we here in Cali are in for one major quake!

My uneducated guess would be the Mammoth mountain area or Lone Pine region, think I'll go bolt down my antique hutch!

Jim_bo


Lone Pine has some very interesting quake history. Somewhere on my big drive I've got a series of letters published to a San Fran Newspaper regarding a huge quake in the area. Lone Pine itself is a neat little town the gateway to Mt Whitney, tallest peak in the lower 48. Which leads to another interesting bit of trivia. In the lower 48 states the highest mountain and the lowest elevation are approx 90 miles apart. Mt. Whitney being the highest and Death Valley being the lowest.

found it here we go...


Lone Pine, CA, Earthquake, Mar 1872
Colorado Chieftain Pueblo Colorado 1872-04-04

EARTHQUAKE DAMAGE.

Much damage was done by earthquake shocks in California and Nevada on the 26th. Camp Independence, California, was completely ruined; the court house was destroyed, and there was not a single adobe or brick building standing from Bishop Creek to Independence. MRS. WEST, residing near Independence, was severely injured. Her child was killed. Stage passengers report that several fissures, miles in length and fifty to two hundred feet wide and twenty feet deep, opened along the eastern base of the Sierra Nevada. Near Big Pine Camp, and at other places in the vicinity, the ground was heaved up in great ridges. Large springs had stopped running, and others had broken out. Heavy snow-slides occurred in the Sierra, and large rocks rolled down the mountain sides, blocking up the stage road. The shocks lasted an interval from 2:20 to 6:30 a.m._Advices received at San Francisco from the volcanic country north of the Majave River, show that the earthquake on the 26th was felt with terrific force there. At Lone Pine twenty-three people were killed, and thirty wounded. Shocks were felt for thirty hours. Fifty houses were demolished, and the town is in ruins.


Transcriber's Note: This earthquake had an estimated reading of 7.8 to 8.0 on the now used Richter scale. This would be equal to the Great San Francisco Earthquake. At least 27 people died in Lone Pine.

GENERAL NEWS.
San Francisco, March 30. -- Dispatches from volcanic districts in Iayo County, four hundred miles southeast from San Francisco, gives additional details of the earthquake disaster of Tuesday last. The shocks continue, though decreased in violence. It is remarkable that only the single slight shock of Tuesday was felt in central and southern California. Cerro Gordo was heavily damaged, and some buildings were thrown down, but only one man was killed. Lone Pine appears to have been directly over the center of the disturbance. The first shock is described as like a park of artillery fired directly beneath the town. The scene beggars description. Screams and groans rent the air in all directions. Nearly the whole populace was buried beneath its ruins. Cries for help and screams of pain from the wounded filled the air, while from the ruins, those who escaped were calling for help. The first shock was followed in quick succession by three others. Over three hundred distinct shocks were felt between 2:30 o'clock and sunrise. In fact the earth was in a constant shake and tremble for over three hours. A chasm was opened extending 85 miles down the valley, and ranging from three inches to forty feet in width. Rocks were torn from their places and rolled down into the valley. Everywhere through the valley are seen evidences of the terrible convulsions of nature.

At Swansea, COL. TREGALTOS, of the smelting works, was killed. There is much desolation among the inhabitants._A Lone Pine dispatch today, from Visalia, says that several shocks were felt in that city last night, and are still coming from the southeast. Persons anticipate the finding of immense chasms in the mountains east of us, as soon as the snow disappears enough to admit of investigation. Rumors of a volcano in active operation being seen from the summit of Greenhood Mountain, sixty miles southeast of Visalia, are in circulation, but are donsidered at least as dubious. Indians in the vicinity have all left, fearing a recurrence of a general convulsion of nature, which according to tradition, occurred there some hundred years ago, and created what is now known as Owen's River Valley, but what was before a chain of mountains. The section affected by the earthquake is sparsely inhabited, mainly by the people working silver bearing lead mines.

San Francisco, April 1. -- Additional advices from Inyo County, place the number of killed by the earthquake on Tuesday, at thirty, and one hundred wounded. In Desert county, stretching from Owen's Lake to the Mexican line, are craters innumerable of volcanoes not long extinct. Several mud volcanoes are still active. It is supposed some of these old volcanos may be in eruption again. A gentleman from Independence asserts that lava and ashes from a volcano are distinctly seen southward from that place, and word has been brought that lava was seen flowing down the mountain. The report is not authenticated. The shocks continued decreasing in force up to Thursday morning, when over one thousand had been counted. At Tibbet's rancho, fifteen miles above Independence, forty acres of ground sunk below the surface of the surrounding country. Big Owen's Lake has risen four feet since the first shock. Owen's River ran over the banks, depositing shoals of fish on the shore. For a distance of four or five miles through Lone Pine, the earth is cracked, one side remaining stationary while the other sand sever or eight feet, leaving a wall of earth extending over three miles in length, which was formerly a level plain. Innumerable cracks were made throughout the valley, Kern and Owen's Rivers turned and run up stream for several minutes, leaving their beds dry, and finally returned with largely increased velocity. No parallel to this earthquake since 1812, when the missions of San Juan Capistrano and La Purissima in Southern California, were destroyed.
 

theoriginaldeb

Still A Geology Fanatic
No foreshocks anytime during the past week and over an hour later, no aftershocks yet either.

It doesn't seem right...

It is very unsettling. My earthquake kitty is still in hiding.
There must be more quakes coming.
I too am still hearing ear tones from all directions. There was one this morning that came from a lateral direction --from below and to the NW--loud sharp and short.
 

theoriginaldeb

Still A Geology Fanatic
Lone Pine has some very interesting quake history. Somewhere on my big drive I've got a series of letters published to a San Fran Newspaper regarding a huge quake in the area. Lone Pine itself is a neat little town the gateway to Mt Whitney, tallest peak in the lower 48. Which leads to another interesting bit of trivia. In the lower 48 states the highest mountain and the lowest elevation are approx 90 miles apart. Mt. Whitney being the highest and Death Valley being the lowest.


found it here we go...


Lone Pine, CA, Earthquake, Mar 1872

Thanks for bringing up this article.
If there is anything that can be found to be a pattern in tectonic plate movement--the ones listed below from-- the upper Pacific Rim only-- do seem to follow a loose pattern and points to the difficulty seismologists have in saying where the next quake will pop.


Dec 1854-- 8.4 magnitudeTokyo Ansei/ Tokai quake/tsunami
Dec 1854--8.4 magnitude next day south of Tokyo---yes back to back big ones.
Mar 1872--8.0+- magnitude Lone Pine Sierra Nevada quake
Apr 1906--7.9 magnitude San Francisco San Andreas quake
Sep 1923--7.9 magnitude Tokyo Sagami Bay/Kanto quake
Mar 1964--9.2 magnitude Alaska Prince William Sound quake/tsunami
Oct 1989--6.9 magnitude San Francisco Loma Prieta quake
Jan 1994-- 6.7 magnitude LA Basin Northridge quake
Mar 2011--9.0 magnitude Sendai Japan Tohoku quake/tsunami

Here is a link to a USA map that kind of shows the historical pattern and vicinity of the most damaging seismic events in the last 200+- years.
http://earthquake.usgs.gov/earthquakes/states/us_damage_eq.php

The notable info above may be the back to back quakes/tsunami of December 1854 on the Island of Honshu, Japan. The first one happened in the NE segment of the island the second on the S part somewhat to the west. These two plates move independently and have moved back to back before and since and also moved in 1944-1946.
My guess is the other plate is getting ready to move soon.
How much effect this has on the rest of the Pacific Rim is anyone's guess. It probably has everything to do with increased stress on all the plates as a whole.
 

truthseeker

Membership Revoked
Don't know about anyone else but my gut feeling on these earthquakes is I believe we here in Cali are in for one major quake!

My uneducated guess would be the Mammoth mountain area or Lone Pine region, think I'll go bolt down my antique hutch!

Jim_bo

My guess is out to sea from Seattle. I hope its not bad enough for a tsunami.
 

willowlady

Veteran Member
Anyone know anything about that 188 day window, when it occurs? I live just South of Portland, Oregon and never felt a thing.
 

gdpetti

Inactive
Here are just a few of the earthquakes off southern Oregon in the last year alone (from my notes):

2012/02/04/Sat - 4.3 earthquake in Oregon (off the coast)

2011/10/12/Wed - 5.3 earthquake in Oregon (off the southern coast)

2011/06/18/Fri - 4.8 earthquake in Oregon (off Gold Beach), followed 4.2 event earlier in the day

2011/03/06/Sun - Earthquake swarm off the coast of Oregon (a BUNCH of 4.0 - 5.0 events)

2011/02/08/Tue - 5.2 earthquake in Oregon (138 miles west of Bandon)

That 4.3 off Oregon had a larger 5.7 off the top end of this little plate around the same day... off Vancouver Island, which seems to get more activity.. so it seems the USA side of the Rim of Fire is finally 'waking up'. Perhaps some of those old volcanoes might soon do the same in that region?

Map @ USGS
 

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Flippper

Time Traveler
Glad to hear all are well. Mindblow, that is one mighty fine avatar you have there, I admire your fine taste my friend.

Don't know if this is related to the quake but yesterday when I was uptown I noticed some atypical clouds northwest of town over the Columbia river stretching east to town; they were elongated diamond shape, tips running east west and very well defined. The group was probably a mile or two wide, quite low and as we watched, a line running north south formed to separate the diamonds from the round clouds, within about 5 minutes there was an inverted L shape line running north to west (the line was formed by the separation, there was nothing there but air.) I assumed it was HAARP, but possibly it had something to do with the quake, happened in the early afternoon some time.
 

CarolynA

Veteran Member
For an intersting read on that Lone Pine EQ in the 1870s Google "John Muir" and "earthquake".. He wrote extensively about how it felt in Yosemite Natl Park. I guess he ran around yelling "Oh noble earthquake". Not the words I would have been yelling!!! :shkr:
 

Reborn

Seeking Aslan's Country
Kinda off topic, but please add a prayer or two for those of us in the Midwest. Normally, especially in recent years, the monthly count of quakes is well into the double digits each month at this time. So far for February, we've had 8 little quakes. It's just a bit strange imho.
 

Carl2

Pass it forward...
In one Cascadia Subduction Zone event, the coastline sank 40 feet in far northern California. As I recall, the last such event happened around 1700 AD, and the resulting tsunami damaged coastal Japan.
 
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