Felt at my location in Northern CA, details follow
5.7 11km WNW of Greenville, California 2013-05-23 20:47:07-07:00
About 40 miles away from me.
Map: http://earthquake.usgs.gov/earthquakes/eventpage/nc71996911#summary
Whole cluster of quakes near Lake Almanor, odd.
12 quakes in that area last hour ranging from 2.5 to 5.7. 44 total if including lower than 2.5 magnitude Wonder if this is related to Mt. Lassen magma pool? Mt. Lassen is just 30mi to NW.
49 quakes now, note distance from cluster to Mt. Lassen. http://earthquake.usgs.gov/earthquakes/map/
- 3.0 8km WNW of Greenville, California 2013-05-23 22:46:56-07:00 0.0 km deep
- 2.0 7km NW of Greenville, California 2013-05-23 22:43:37-07:00 3.1 km deep
- 2.9 8km WNW of Greenville, California 2013-05-23 22:39:43-07:00 0.0 km deep
- 1.9 10km NW of Greenville, California 2013-05-23 22:37:21-07:00 9.7 km deep
- 2.0 8km WNW of Greenville, California 2013-05-23 22:28:26-07:00 8.8 km deep
- 1.9 11km WNW of Greenville, California 2013-05-23 22:27:16-07:00 2.5 km deep
- 3.1 13km SSW of Westwood, California 2013-05-23 22:24:42-07:00 0.0 km deep
- 2.3 10km WNW of Greenville, California 2013-05-23 22:23:26-07:00 1.3 km deep
- 2.4 8km WNW of Greenville, California 2013-05-23 22:19:34-07:00 0.9 km deep
- 2.9 9km NW of Greenville, California 2013-05-23 22:18:23-07:00 0.0 km deep
- 2.7 7km WNW of Greenville, California 2013-05-23 22:13:46-07:00 2.5 km deep
- 1.9 8km WNW of Greenville, California 2013-05-23 22:12:31-07:00 2.5 km deep
- 2.9 9km WNW of Greenville, California 2013-05-23 22:09:13-07:00 0.1 km deep
- 1.8 9km WNW of Greenville, California 2013-05-23 22:08:26-07:00 0.0 km deep
- 2.7 11km WNW of Greenville, California 2013-05-23 22:06:15-07:00 0.2 km deep
- 3.6 8km WNW of Greenville, California 2013-05-23 22:01:55-07:00 0.0 km deep
- 3.5 9km WNW of Greenville, California 2013-05-23 21:58:57-07:00 0.1 km deep
- 3.4 10km WNW of Greenville, California 2013-05-23 21:58:08-07:00 0.0 km deep
- 2.1 9km WNW of Greenville, California 2013-05-23 21:56:30-07:00 10.5 km deep
- 0.0 12km WNW of Greenville, California 2013-05-23 21:53:13-07:00 12.0 km deep
- 2.0 10km NW of Greenville, California 2013-05-23 21:52:24-07:00 7.2 km deep
- 2.2 10km WNW of Greenville, California 2013-05-23 21:49:49-07:00 0.2 km deep
- 0.0 13km WNW of Greenville, California 2013-05-23 21:45:52-07:00 4.1 km deep
- 2.8 10km NW of Greenville, California 2013-05-23 21:44:42-07:00 0.1 km deep
- 2.7 10km WNW of Greenville, California 2013-05-23 21:40:30-07:00 0.0 km deep
- 1.8 10km NW of Greenville, California 2013-05-23 21:35:03-07:00 7.0 km deep
- 2.1 9km WNW of Greenville, California 2013-05-23 21:34:22-07:00 2.5 km deep
- 2.2 11km WNW of Greenville, California 2013-05-23 21:34:00-07:00 6.2 km deep
- 2.4 11km WNW of Greenville, California 2013-05-23 21:32:56-07:00 1.3 km deep
- 1.7 9km SW of Westwood, California 2013-05-23 21:32:24-07:00 5.0 km deep
- 2.0 9km WNW of Greenville, California 2013-05-23 21:31:04-07:00 0.8 km deep
- 2.7 10km WNW of Greenville, California 2013-05-23 21:29:42-07:00 0.0 km deep
- 2.5 9km WNW of Greenville, California 2013-05-23 21:28:31-07:00 1.3 km deep
- 1.8 9km NW of Greenville, California 2013-05-23 21:27:38-07:00 0.0 km deep
- 2.6 10km WNW of Greenville, California 2013-05-23 21:25:19-07:00 0.0 km deep
- 2.0 12km SSW of Westwood, California 2013-05-23 21:24:43-07:00 1.7 km deep
- 2.3 10km NW of Greenville, California 2013-05-23 21:24:01-07:00 1.3 km deep
- 2.6 10km NW of Greenville, California 2013-05-23 21:23:40-07:00 5.1 km deep
- 0.0 11km WNW of Greenville, California 2013-05-23 21:23:06-07:00 6.9 km deep
- 2.0 10km NW of Greenville, California 2013-05-23 21:21:52-07:00 0.1 km deep
- 2.0 12km SSW of Westwood, California 2013-05-23 21:21:11-07:00 0.5 km deep
- 2.2 9km NW of Greenville, California 2013-05-23 21:18:31-07:00 1.3 km deep
- 2.2 10km NW of Greenville, California 2013-05-23 21:18:10-07:00 4.0 km deep
- 1.8 10km NW of Greenville, California 2013-05-23 21:16:32-07:00 17.6 km deep
- 2.3 10km WNW of Greenville, California 2013-05-23 21:15:15-07:00 0.2 km deep
- 2.4 13km WNW of Greenville, California 2013-05-23 21:10:24-07:00 0.7 km deep
- 2.8 10km NW of Greenville, California 2013-05-23 21:09:15-07:00 1.3 km deep
- 3.4 15km SE of Chester, California 2013-05-23 21:08:21-07:00 0.0 km deep
- 2.6 12km SSW of Westwood, California 2013-05-23 21:07:44-07:00 1.6 km deep
- 2.0 11km WNW of Greenville, California 2013-05-23 21:07:22-07:00 2.5 km deep
- 2.6 10km WNW of Greenville, California 2013-05-23 21:04:09-07:00 1.6 km deep
- 2.1 9km WNW of Greenville, California 2013-05-23 21:01:41-07:00 0.7 km deep
- 3.5 10km NW of Greenville, California 2013-05-23 20:55:30-07:00 0.0 km deep
- 2.2 9km NW of Greenville, California 2013-05-23 20:55:11-07:00 3.4 km deep
- 5.7 11km WNW of Greenville, California 2013-05-23 20:47:08-07:00 11.0 km deep
- 1.9 12km ENE of East Quincy, California 2013-05-23 04:17:24-07:00 1.5 km deep
adaka (KD Knoebel) says:
May 23, 2013 at 9:37 pm
Does the weak sun with strong seismic correlation still hold?
No, never did: http://phys.org/news/2013-04-link-solar-earthquakes.html
Fracking, if anything at all, should relieve stresses before they get too pent up. If Fracking were going to cause an earthquake, the quake that it set off would have been be smaller because it would have unloaded before more tension was built up. Just a guess, but I’ve heard an explanation like this before on WUWT and it makes sense.
Joseph Olsen — you listen to Art Bell’s “Coast to Coast”??? You seem like such a sensible, intelligent fellow! (I know, I know, I have read an issue or two of The National Enquirer in my lifetime — kind of fun… once in awhile — hey, I really shouldn’t slam them after they got ol’ adultery-hairdo-man Jonathan Edwards. Go, National Enquirer! (and get the rest of those rats!)
Mr. Joseph Olson, please forgive my misspelling your last name. I recklessly risked it. You’re of Swedish heritage, not Norwegian or Danish, hm? I should have double-checked.
From lsvalgaard on May 23, 2013 at 11:08 pm:
Good. Also good they did new research instead of just dismissing it out of hand.
I LUV the last lines of the piece, from lead author Dr Jeffrey Love:
This needs to be carved in stone tablets and mounted on the wall of any place where “Climate Science” is practiced. And for sociology too, of course, if there are extras.
“This [above quote] needs to be carved in stone tablets and mounted on the wall of any place where “Climate Science” is practiced.” [K.D. Knoebel]
LOL, that would take………. and act of God. #[:)]
“12 quakes in that area last hour ranging from 2.5 to 5.7. 44 total if including lower than 2.5 magnitude Wonder if this is related to Mt. Lassen magma pool?”
I’m very skeptical about that. But if there’s a magma pool beneath those lakes, watch out.
It seems worthwhile to keep an eye on the low mag earthquakes. Where they occur and the number of them vary. Seems like there is much more activity in SoCal now versus 3 years ago perhaps due to the Baja earthquakes in the northern Gulf of California. Now all of CA is more active along with parts of NV. Just low mag, but lots of them. The USGS default on their viewer is mag 2.5+, so you can’t get any sense of changes. Obviously, low magnitude events in isolation are not significant, and even a cluster doesn’t mean much. However, over a period of years, a shifting distribution emerges, and that means nothing? No, more likely it means California is moving now, at least more than it was 3 years ago, and maybe that means some bigger events to come.
http://earthquake.usgs.gov/earthquakes/map/
select map and options, pick all mags 7 days
We haven’t had a major volcanic eruption since Pinatubo in 1991, so it’s highly probable we’ll have one soon, somewhere in the world.
Mt. Fuji in Japan (I have a gorgeous view of Mr. Fuji from my home….) has been getting more active recently. Professor Masaki Kimura of Ryukyu University predicted in January of this year that it could erupt by 2015…
There goes the neighborhood…
CAGW grant whores are desperately hoping for two phenomenon: 1) A major El Nino event, (whose warming effect would be blamed on CAGW), or 2) a major eruption (whose cooling effect would be blamed for the lack of warming).
And so it goes…..until it doesn’t.
crosspatch @ur momisugly May 23, 2013 at 10:20 pm, I am glad I am not the only one to find the new USGS Earthquake map page unhelpful compared to the old one. I had a link to the old page on my sidebar and it is giving a 404 error. I wrote them and asked for a link to a useful page. I am in Texas so I did not feel the shakes. I used to use the map to keep up with those in Oklahoma last year, and the occasional one in Texas.
And this is outstanding if you haven’t seen it yet.
Two obvious candidates for causing quake swarm in that area:
1. Related to Mount Lassen magma (not very likely, rather too far away)
2. Reservoir effect. Building reservoirs and changing pressures and ground water levels is a well known way to release seismic energy (much better than fracking). Magnitude 5.7 is rather large for reservoir effect, but far from not unique, the record being 7.2, I think.
The moon is approaching its closest encounter with earth.
When the Japan tsunami hit, Earth was at its minimum distance to sun.
Having lived in Westwood and other places in Plumas County I am more than familiar with Lake Almanor, and note from your map all the quakes seem to be occuring on the concrete dam end of the lake. Also, I am quite aware (unlike the stupid news reporters in calfornia) that Mount Lassen is indeed an active/dormant “super-volcano.” What a coincidence that it last erupted May 22, 1915. Today’s earthquake of 5.7 on May 23, 2013 was at 8:24 pm. Writing this at 12:25 in the morning May 24 I note there have about a dozen quakes between 2.0 and 2.8 in the last half hour. The quakes have been centered in Truckee. Portola, Quincy, Westwood and Viola–which if you draw a line from Truckee to Viola are all in a nearly direct straight line with lassen Peak (volcano dome) right in that line up by Viola. Lassen is a super volcano and if I lived there now I would get the hell out of there for a while..
California is about to ban fracking? Monterey shale is said to have over 15 billion barrels of oil, four times the size of the Bakken. But… Chevron drilled into it and was not impressed. Again, but… the first explorations in any new area usually are kept quiet until land and mineral rights are secured.
Guess California doesn’t want jobs…
http://finance.yahoo.com/news/california-seems-likely-ban-fracking-190014652.html?_view=desktop&desktop_view_default=true
Plus quite a biggie at the unfashionable end of Russia – according to my “xearth”, a mag. 8.3 at lat 54.87°, long 153.28° at 05:44 UTC this morning.
There are times I’m very happy that the UK floats just off the coast of Europe, where the phrase “Ring of Fire” refers only to the aftermath of passing a highly spiced meal.
I just felt that too just woke me up penn valley ca
Sent from my iPhone
Northern California is rich in natural gas. There are many dozens of capped gas wells in Rio Vista for instance. Capped by PG&E in the 50’s after they petered out. Now they are pressurized again. But they will not be re-opened unless legislation to allow LNG/CNG to be shipped to China for more than they would be allowed to sell for in California or the U.S. is passed. That will up the price of gasoline if allowed, and certain politicos are trying to con us into believing it will be good for us to pay more for gasoline so big oil can sell natural gas to china.
Nice set of aftershocks. You get that with shallow earthquakes.
The 5.7 quake was detected by my seismometer more than 8000km away. But the readings went off the charts when the Sea of Okhotsk quake began rolling in. Looks like an 8.5 quake or thereabouts.
I wonder if we’ll get a serious idiot troll screaming “HAARP!!”..?
I searched and searched for a Plumas County fault line map tonight and finally found one in a pdf document, and it shows the minor faults in the county. There are two rather short fault lines at the south end of Lake Almanor that converge at their south ends into somewhat of a V. The area of these two fault lines is the epicenter area of the 5.7 quake tonight at 8:47 p.m. Pacific. USGS listed it as being 6.8 miles deep. There have been 13 aftershocks so far over 3.0, the strongest was 4.9 at 1:23 a.m. The epicenter on that one was very close to the 5.7.
I don’t have the url of the pdf (sorry), but I did save the image. The map is on page 9 and the doc is titled:
2035 Plumas County General Plan Update 4.7-25 ESA / 208739
Draft Environmental Impact Report November 2012
I live in Redding and clearly felt the 5.7. I was sitting at my desk and I felt the house, the room, the floor, and the table sway and roll. I live rather close to the river on the old alluvial plains (amazing soil here for gardening!) and I’m guessing that contributed to my being able to feel it so clearly. It made me dizzy for a few moments. I immediately looked for the quake on the usgs site, found it (first listed as 5.9), and reported it there on their reporting page. There certainly has been a lot of talk about it on Facebook tonight; obviously it was felt throughout the extended region.
I just checked the activity page on usgs and another aftershock above 3.0 just occurred at 2:42 a.m. This one was 3.9.
ville says:
May 24, 2013 at 12:18 am
The moon is approaching its closest encounter with earth.
When the Japan tsunami hit, Earth was at its minimum distance to sun.
Neither has anything to do with earthquakes, e.g. here is earthquake activity with respect to the Moon: http://www.leif.org/research/Earthquakes-Perigee.png
We had one in the Ottawa area last Monday, rated 4.4-5.1, felt as far south as New Yawk state. Subsequently determined to be the result of the ground lifting from the all of the liberal reporters in the parliamentary press gallery covering the senate expense “scandal”, rushing to Toronto to cover the the Rob Ford, Mayor of Toronto, caught-maybe-smoking-crack-on-a-poor-quality-video-nobody-can-see-till they-pay-$250,000 “scandal”. Both Ottawa and Toronto are still standing…more’s the pity…..
Haven’t felt a thing here in Myrtle Beach. Another good thing about here is that it is about as far away from there (California) as one can get, both physically and politically, and still be in the lower 48. We’re building 4 new nuclear plants, which will result in over 90% carbon-free electricity. And it won’t require a million acres of solar panels.
I’ve been watching this swarm near Russia for the last few days. The latest was an 8.2 with a depth of 602 miles (wow) and depths of the others others are relatively deep and vary.
http://www.iris.edu/seismon/eventlist/index.phtml?region=N_Pacific&lon=153.33&lat=54.87
I see the swarm near Greenville is quite shallow. Hopefully they will subside.