Note: USGS upgraded to 5.9 from the 5.8 preliminary estimate
Between Richmond and Charlottesville (h/t Corey S)
More:
| Magnitude | 5.9 |
|---|---|
| Date-Time |
|
| Location | 37.975°N, 77.969°W |
| Depth | 1 km (~0.6 mile) (poorly constrained) |
| Region | VIRGINIA |
| Distances |
|
| Location Uncertainty | horizontal +/- 10.9 km (6.8 miles); depth +/- 7.4 km (4.6 miles) |
| Parameters | NST=390, Nph=390, Dmin=57.9 km, Rmss=1.17 sec, Gp= 47°,
M-type=regional moment magnitude (Mw), Version=6 |
| Source |
|
| Event ID | usc0005ild |
If you felt it, you can report is here to USGS: Did You Feel It? – Report an earthquake
There’s an earthen dam near the epicenter, 1.7 miles away, I wonder how it fared:
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africangenesis says:
August 23, 2011 at 1:16 pm
“The lastest (sic) revision has the depth at 0 km, what are the implications of that?”
OMG! We’ve reached Al Gore’s and Jim Hansen’s Tipping Point!!!!!
It’s The End Of The World As We Know It!
http://www.youtube.com/watch?v=Z0GFRcFm-aY
Random Movements of the Earth’s Crust?
Lack of knowledge about the causation should not lead to a presupposition of randomness. If we had adequate knowledge of causation and ability to measure and monitor the forces which bring about earthquakes, we would be able to predict them. Reliable long range prediction would have quelled the panic and unnecessary disruption that is happening on the East coast right now. Out of chaos humanity builds constructs that bring order to civilization. Assigning randomness is not helpful. It’s about time geologists figure out a way to predict earthquakes. Scoring and plotting earthquakes doesn’t help.
Sorry, I am a clinical social worker. So I have no models or measurements to contribute. . I help people and their families deal with the hardships of life.
A year or so ago, we saw this wonderful gravitational variance map from the (GOCE) satellite. I know this blog is focused on climate so I am a bit outta line here. Yet I have not heard another word about it’s potential utility in predicting earthquakes. If anyone out there is away of any work on this please link me up.
I have been reading this blog for several years. This is what I have learned as a lay person, the sun, earthquakes, the earth’s crust, volcanoes, the earth’s core, magma, the oceans and the atmosphere are all inexplicably joined together in the dance we call climate. I have no paradigmatic alliances and I am not an academic. I am just one of many regular folk who love this blog.
Thanks
Jeff
I am from Richmond, but am at a meeting in Pittsburgh. There was rumbling and the light fixtures in the meeting room swayed and tinkled, the guy giving the presentation stopped. I thought it might be a train passing by. Then I got a call 3 minutes later from my daughter and wife in Richmond, she said they were OK but had felt a quake.
BTW,
“Moliterno says:
August 23, 2011 at 11:31 am
The epicenter was right below the North Anna Nuclear station.”
====================================================
Moliterno, I hope you mean underneath North Anna on the map, not underneath the ground. The epicenter was just south and a little west of the town of Mineral, North Anna if a few miles to the north and east of Mineral, about 4 miles as the crow flies. The units were shut down safely. Funny thing, no tsunamis in Mineral, it’s a tad inland (maybe the folks in Germany sound realize that!).
So that’s what that noise was.
I’m up here in the Buffalo region. Didn’t feel a thing. But then, my apartment’s half below ground, so wouldn’t really feel something like that. But I did hear it. And here I was thinking the roofer had come over early and was unloading his truck. Then I finished reading my book, leaned back in my recliner, and took a nice little nap.
That’s the second earthquake I’ve heard in the past several years.
Felt the house tremble quickly a bit, back and forth,lasting about 6 seconds in total. and the overhead Chandelier began rocking steadily for about one minute in a North to South motion, at exactly 1:53pm EST, in Toms River,NJ 08757,
Egad. I didn’t notice anything & I’m only ~150 miles from the center.
Maybe it was the loose bottomland sediment here that damped it out locally. Yeah, that must be it.
Anthony ,
My question was directed to Tony who posted from Lawrenceville at 11:14 am . I have never addressed you as anything but Anthony . Sorry for the confusion .
Pepper
This just in –
http://jmckinley.posterous.com/dc-earthquake-devastation
And I thought the only fault line in that part of the country was, “It’s somebody else’s fault!”
I’ve felt that Washington, D.C. has been operating on shaky ground for a long time. Now we know!
I lived almost 20 years in Southern California. Couple of quakes I experienced there you couldn’t walk while it was happening and lucky if you could remain standing. Never frightened me at all. Almost like a ride at Knott’s Berry Farm only I didn’t have to buy a ticket.
Then I moved to Texas where there evidently aren’t earthquakes of any significance in anyone’s living memory. Tornados scare the crap out of me but Texas natives shrug off the watches and warnings like they’re nothing. In talking to the natives I discovered most of them are so fearful of earthquakes they don’t want to go to Disneyland in Anaheim for a vacay to say nothing of living there. I asked why. The answer is because with tornadoes you have time to either seek shelter or get in your car and get the hell out of dodge – but an earthquake you get no warning and you not only can’t drive away you can’t even walk to the nearest sturdy shelter.
Interesting. I guess you must just become inured to the threats that you live with on a daily basis. But then again I’ve been in Texas for almost 20 years now and tornadic thunderstorms are still not things I take lightly when they’re passing overhead.
Its funny that some people think that when ice melts, its weight when it turns into water is so much less than when it was ice.
fingers crossed
catsrevenge9 says:
August 23, 2011 at 2:14 pm
“Felt the house tremble quickly a bit, back and forth,lasting about 6 seconds in total. and the overhead Chandelier began rocking steadily for about one minute in a North to South motion, at exactly 1:53pm EST, in Toms River,NJ 08757,”
Tom’s River! There’s a city name I haven’t heard in a long while. I went to meteorological equipment repair school for six months at NAS Lakehurst. Ate chow every day just about in the shadow of the blimp hanger near where the Hindenberg went down. That was in 1975. I was 18 years old. Used to party in Asbury Park bars where Bruce Springsteen hung out. Actually saw him play in some little dive one night. Met my first wife there too, a Tom’s River native.
Whoever was responsible, my wife thanks you…
Here in Gwynedd Valley, PA the building I was working in swayed roughly east to west. At first I thought it was an inner-ear glitch, but then I noticed hanging things were swinging. Then I thought someone had hit the building with a truck. I’d always imagined an earthquake to involve more rapid oscillations … a quick shaking, but this felt more like being in a ship at sea. A quick IM exchange with my wife indicated that she, too felt it at her work five miles away. That’s when I checked the USGS web page and saw what hit Virginia. I haven’t seen any signs of damage, but my wife’s campus evacuated briefly.
In my car, in Bethesda MD – felt the car shake ~10 seconds.
Power Grab says:
August 23, 2011 at 11:39 am
“That big one in NM was almost exactly 12 hours before the one in VA. Just sayin’…”
Well said.
While the sun in Trinidad, CO was on the deepest point under the earth and Neptune was high in the sky on the local meridian, in Mineral, VA, Neptune was on the deepest point under the earth and the Sun was high in the sky on the local meridian.
http://volker-doormann.org/gif/quakes_23_8_2011.gif
In 1951 J. H. Nelson from RCA has studied the planetary aspects fore a better forecast of shortwave propagation. The core of this stuff is that the terrestrial signal degradations are connected to sun flares which occurs when some planets take tide like heliocentric positions on the ecliptic (From this one can make climate forecast).
But as it can be shown, in the same way such geocentric positions on the ecliptic are often connected to earthquakes. Moreover there seems to exist earth ‘resonance modes’ up to n = 36 as it was on the 11th of March 2011 in Japan.
http://volker-doormann.org/images/mag9_11_3_11c.jpg
http://volker-doormann.org/images/mag9_plan_dist.gif
V.
Lived on the south coast of Oregon for near 20 years. We Bolted our bookshelves to the wall
as we did the china hutch. Never got used to to that. What finished it was living below the
coffer dam in Coos Bay, and the city-at random would test the Dam breach and Tsunami
sirens without much announcement.
I will put up with Wildfire, Flooding and Snow of NE Oregon any time..
(and a mile or so of Basalt rock underneath…)
RACookPE1978 says:
August 23, 2011 at 11:25 am
You know that the ionization blackout hasn’t been an issue since we got a communications satellite cloud, right? Columbia was in contact with Mission Control right up to the time of breakup.
I’m curious: since the Colorado earthquake happened early morning, were not the seismologists – and the government for that matter – suppose to inform larger populace about a possiblity of another earthquake within next say 24-48 hour period? I think that if Virginia tremor couldn’t have been predicted, the people might have been at least told about a possibility of it. What do you think?
Also, can these abnormal earthquakes be linked to crude oil drilling? Perhaps drilling a bit deeper than usual. I wonder why…
Citizens of Science! You will be interested to know that these events come on the eve of what we predicted at WeatherAction as the likely most serious Quake- Volcano period this month in our Earthquake-Volcano risk trial forecasts. I see the earthquakes in CO, VA etc as a “Prelude to a major Quake-Volcano (‘QV’) period Aug24-28”. See http://bit.ly/peih7b
Thanks Piers C
The Hitchhikers Guide to the Universe recommends placing a paper bag over the head and getting drunk… I think… or was it lie down on the floor. Oh hell, do all three! Don’t forget the towel! Always have a towel handy. GK
In Northern VA it shook for about 20 seconds. My office and the nearby buildings cleared out fast, within 5 minutes and I was (I think) the only person left at a desk, as I tried to post to the USGS “I Felt It” site. One guy came back and shouted “Why are you still here!” to which I said “It’s over,” which it was, and I recalled the two co-workers who were killed by the SFO quake about 15-20 years ago when a brick wall fell on them at the outdoors parking lot to which they had fled.
There’s really no escaping fate, whether it’s a meteor, an earthquake, or <1C of climate change.
I felt it here in the mountains of Floyd County, Va.