Quake Watch 2010

Magnitude 6.1 - ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA
2010 October 08 03:49:11 UTC

Depth
35 km (21.7 miles) set by location program
Region
ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA
Distances
104 km (65 miles) ESE (114°) from Adak, AK
106 km (66 miles) SW (223°) from Atka, AK
464 km (289 miles) WSW (252°) from Nikolski, AK
1886 km (1172 miles) WSW (247°) from Anchorage, AK
Location Uncertainty
horizontal +/- 4.7 km (2.9 miles); depth fixed by location program
Parameters
NST=223, Nph=223, Dmin=468.3 km, Rmss=0.86 sec, Gp= 94°,
M-type=teleseismic moment magnitude (Mw), Version=7
Source
U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver
Event ID
us2010cdam

reply to post by berkeleygal


Yeah, with that second one happening so close in magnitude to the first, these could be foreshocks...eeks.. lookout Alaska.

Also, those were strong enough to knock out a whole bunch of stations it appears...AVO stations in trouble, all dead...Also, Alaska Tsunami warning network stations all dead...


Also, another one (third) just hit....got it in gee...smaller though I think 4.5ish


was a 5.3... earthquake.usgs.gov...
what can I say...getting conservative in my old age...

Update: some stations on AVO network are back, but ones around the epicenters of the big quakes are still shot...

These are a bit nerve racking. Do we have any common posters in that area? Would love to hear a first-hand account and get the low down on what the locals are saying about it. Foreshocks? That was my first thought/concern also, being so close together.

With the quake under helens today too, and those recent quakes off the coast....hmmmm

still rumblin with a 4.6

Location
51.287°N, 175.336°W
Depth
35 km (21.7 miles) set by location program
Region
ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA
Distances
115 km (70 miles) SE of Adak, Alaska
130 km (80 miles) SW of Atka, Alaska
1905 km (1190 miles) WSW of Anchorage, Alaska
2700 km (1680 miles) W of JUNEAU, Alaska

reply to post by berkeleygal


Watching the closest station in gee, it is doing more than what the USGS is reporting on...There are continual small aftershocks going on as we speak...They're only reporting the bigger ones.

looks like another 5.5 or so just hit at about 5:41 UTC...waiting on USGS

another 4.6...guess I'll get conservative again...

earthquake.usgs.gov...


Hmm, now another big quake just hit Indonesia... 6.3

earthquake.usgs.gov...

6.3
Date-Time
Friday, October 08, 2010 at 05:43:10 UTC
Friday, October 08, 2010 at 02:43:10 PM at epicenter
Time of Earthquake in other Time Zones
Location
2.754°N, 128.198°E
Depth
144.9 km (90.0 miles)
Region
HALMAHERA, INDONESIA
Distances
235 km (145 miles) NNE of Ternate, Moluccas, Indonesia
400 km (245 miles) ENE of Manado, Sulawesi, Indonesia
1530 km (950 miles) SSE of MANILA, Philippines
2565 km (1600 miles) ENE of JAKARTA, Java, Indonesia
Location Uncertainty
horizontal +/- 6.4 km (4.0 miles); depth +/- 15.4 km (9.6 miles)
Parameters
NST= 90, Nph= 90, Dmin=772.6 km, Rmss=0.81 sec, Gp= 54°,
M-type=teleseismic moment magnitude (Mw), Version=6
Source
USGS NEIC (WDCS-D)
Event ID
us2010cdaz

---------------------------------------------------------------------------------

5.0
Date-Time
Friday, October 08, 2010 at 07:21:02 UTC
Friday, October 08, 2010 at 03:21:02 AM at epicenter
Time of Earthquake in other Time Zones
Location
33.612°S, 71.918°W
Depth
16.6 km (10.3 miles) set by location program
Region
OFFSHORE VALPARAISO, CHILE
Distances
30 km (15 miles) W of San Antonio, Valparaiso, Chile
70 km (45 miles) SSW of Valparaiso, Valparaiso, Chile
120 km (75 miles) W of SANTIAGO, Region Metropolitana, Chile
125 km (75 miles) WNW of Rancagua, Libertador O'Higgins, Chile
Location Uncertainty
horizontal +/- 22.6 km (14.0 miles); depth fixed by location program
Parameters
NST= 92, Nph= 95, Dmin=523.2 km, Rmss=0.76 sec, Gp=130°,
M-type=body wave magnitude (Mb), Version=5
Source
USGS NEIC (WDCS-D)
Event ID
usa0003x9z

------------------------------------------------------------------------------

4.6
Date-Time
Friday, October 08, 2010 at 06:47:23 UTC
Friday, October 08, 2010 at 03:47:23 PM at epicenter
Time of Earthquake in other Time Zones
Location
25.902°N, 124.372°E
Depth
188.3 km (117.0 miles)
Region
NORTHEAST OF TAIWAN
Distances
165 km (105 miles) N of Ishigaki-jima, Ryukyu Islands, Japan
290 km (180 miles) ENE of Su-ao, Taiwan
300 km (185 miles) ENE of T'AI-PEI, Taiwan
1830 km (1130 miles) WSW of TOKYO, Japan
Location Uncertainty
horizontal +/- 29.4 km (18.3 miles); depth +/- 14.7 km (9.1 miles)
Parameters
NST= 17, Nph= 17, Dmin=307.2 km, Rmss=0.95 sec, Gp=184°,
M-type=body wave magnitude (Mb), Version=6
Source
USGS NEIC (WDCS-D)
Event ID
us2010cda2

What seems to be happening in Alaska???!!!
Just checked in on RSOE EDIS and wow Barrow in Alaska seems to be shaking quite alot.

Is this normal or not? Please enlighten me as I am quite new to all this.

And i must say you guys do a brilliant job of keeping us all informed (You know who you are)

here's an unusual one: earthquake.usgs.gov...

brazil's central region

Magnitude 5.0 - TOCANTINS-GOIAS BORDER REGION, BRAZIL
2010 October 08 20:16:56 UTC

Location
13.825°S, 49.182°W
Depth
14.8 km (9.2 miles)
Region
TOCANTINS-GOIAS BORDER REGION, BRAZIL
Distances
75 km (50 miles) N of Uruacu, Goias, Brazil
235 km (145 miles) S of Gurupi, Tocantins, Brazil
255 km (160 miles) NNW of BRASILIA, Distrito Federal, Brazil
275 km (170 miles) WSW of Campos Belos, Goias, Brazil
Location Uncertainty
horizontal +/- 20.2 km (12.6 miles); depth +/- 6.8 km (4.2 miles)
Parameters
NST= 84, Nph= 85, Dmin=>999 km, Rmss=0.99 sec, Gp= 97°,
M-type=body wave magnitude (Mb), Version=6
Source
USGS NEIC (WDCS-D)
Event ID
us2010cdcf

Definitely NOT an active seismic area

neic.usgs.gov...

This is CRAZY you guys. I know Alaska is normally an active region, but this is wayyyyyy beyond the norm. Check out just the past two days:

MAP 5.0 2010/10/08 23:32:27 51.495 -175.109 49.1 100 km ( 62 mi) SW of Atka, AK
MAP 5.2 2010/10/08 21:22:48 51.486 -175.257 47.3 105 km ( 65 mi) ESE of Adak, AK
MAP 4.7 2010/10/08 18:28:03 51.606 -175.138 36.7 92 km ( 57 mi) SW of Atka, AK
MAP 4.4 2010/10/08 17:44:27 51.425 -175.134 10.1 107 km ( 66 mi) SW of Atka, AK
MAP 3.5 2010/10/08 15:53:35 51.298 -175.083 4.8 117 km ( 73 mi) SSW of Atka, AK
MAP 2.5 2010/10/08 15:09:49 51.228 -175.060 25.6 123 km ( 76 mi) SSW of Atka, AK
MAP 3.0 2010/10/08 13:58:27 51.211 -175.032 43.0 124 km ( 77 mi) SSW of Atka, AK
MAP 2.1 2010/10/08 10:56:40 51.344 -175.135 4.7 114 km ( 71 mi) SW of Atka, AK
MAP 2.6 2010/10/08 09:38:05 51.309 -175.111 6.5 117 km ( 72 mi) SSW of Atka, AK
MAP 2.6 2010/10/08 08:46:43 51.320 -175.160 16.7 117 km ( 73 mi) SW of Atka, AK
MAP 2.7 2010/10/08 08:35:20 51.409 -175.354 27.0 104 km ( 64 mi) ESE of Adak, AK
MAP 2.6 2010/10/08 07:36:45 51.356 -175.185 14.3 115 km ( 72 mi) SW of Atka, AK
MAP 2.9 2010/10/08 06:00:47 51.413 -175.345 25.7 104 km ( 65 mi) ESE of Adak, AK
MAP 4.6 2010/10/08 05:41:01 51.384 -175.294 35.0 109 km ( 67 mi) ESE of Adak, AK
MAP 2.7 2010/10/08 05:38:24 51.200 -175.141 27.2 128 km ( 80 mi) SSW of Atka, AK
MAP 3.0 2010/10/08 05:21:48 51.150 -175.092 25.4 131 km ( 82 mi) SSW of Atka, AK
MAP 2.7 2010/10/08 05:17:37 51.321 -175.304 27.8 112 km ( 69 mi) ESE of Adak, AK
MAP 3.5 2010/10/08 04:39:35 51.247 -175.262 31.6 119 km ( 74 mi) SE of Adak, AK
MAP 4.6 2010/10/08 04:28:26 51.287 -175.336 35.0 112 km ( 70 mi) SE of Adak, AK
MAP 3.3 2010/10/08 04:23:20 51.310 -175.258 26.1 115 km ( 72 mi) ESE of Adak, AK
MAP 5.3 2010/10/08 04:19:18 51.538 -175.376 35.0 96 km ( 59 mi) ESE of Adak, AK
MAP 3.6 2010/10/08 04:18:19 51.254 -175.204 27.4 122 km ( 76 mi) SE of Adak, AK
MAP 3.6 2010/10/08 04:10:29 51.262 -175.263 25.8 118 km ( 73 mi) SE of Adak, AK
MAP 3.7 2010/10/08 04:08:23 51.286 -175.259 35.8 117 km ( 72 mi) SE of Adak, AK
MAP 4.0 2010/10/08 04:05:12 51.240 -175.173 36.5 124 km ( 77 mi) SE of Adak, AK
MAP 3.1 2010/10/08 04:02:41 51.239 -175.296 25.5 118 km ( 73 mi) SE of Adak, AK
MAP 3.9 2010/10/08 04:00:48 51.325 -175.298 26.4 112 km ( 70 mi) ESE of Adak, AK
MAP 3.9 2010/10/08 03:56:55 51.256 -175.192 22.4 122 km ( 76 mi) SE of Adak, AK
MAP 6.1 2010/10/08 03:49:11 51.499 -175.261 35.0 104 km ( 65 mi) ESE of Adak, AK
MAP 4.1 2010/10/08 03:40:49 51.249 -175.215 31.8 121 km ( 75 mi) SE of Adak, AK
MAP 3.4 2010/10/08 03:35:44 51.239 -175.248 28.5 120 km ( 75 mi) SE of Adak, AK
MAP 6.4 2010/10/08 03:26:13 51.421 -175.434 20.6 98 km ( 61 mi) ESE of Adak, AK
MAP 2.7 2010/10/07 19:54:02 53.375 -163.480 25.7 162 km (100 mi) S of False Pass, AK
MAP 2.2 2010/10/07 04:48:54 51.001 -179.547 25.5 224 km (139 mi) WSW of Adak, AK
MAP 4.8 2010/10/06 08:00:20 51.109 -179.178 46.2 195 km (121 mi) WSW of Adak, AK

LINK


Something is up. I am wondering why we aren't hearing more about it? I mean, has anyone seen anything reported on this ANYWHERE???? (except for here )

Originally posted by westcoast
This is CRAZY you guys. I know Alaska is normally an active region, but this is wayyyyyy beyond the norm.

Well that depends on what you consider the norm.

If we looked at the aftershocks from the big Chile quake, or the recent swarms after the big BAJA/Mexico quake, or even after the recent NZ quake....then everything is pretty normal.

Aftershocks from a big quake. That's about it....Unless these prove to be foreshocks for a bigger one to come. But it appeared there were already foreshocks to the biggest 6.4 already present in the area...So chances are these are just aftershocks...And from watching still in GEE, there are a lot more than that, below 2.5 that are happening but not reported. It's dying down a bit though.

reply to post by westcoast


Eee calm down westcoast.

Last 365 days cumulative looks pretty steady. (This excludes the peninsula) [67,-161/56,-137]

reply to post by PuterMan




thanks for the graph, always nice to have the visuals. Those are some pretty significant aftershocks thought, considering it was just a 6.4.

reply to post by westcoast


It was a bit more than that, with the 6.1 shortly following. The Aluetians get quite a few double quakes, especially 6's together.Without actaully checking I think it happens at least once a year from memory.

Every region has different geology, we quite often get 6's here offshore NZ that don't have any aftershocks ( 3 this year).

I will say this, we seem to be getting more and more "twins" or "doubles" globally, where there are two very strong/major quakes within seconds, minutes or hours of each other.

More precise recording than in the past?

IDK - Does anyone else here find this peculiar? Seems a bit off to me Not far from the New Madrid fault - but not on it

MAP 2.0 2010/10/09 04:41:12 35.302 -92.309 5.1 3 km ( 2 mi) SE of Guy, AR
MAP 1.8 2010/10/09 04:29:40 35.304 -92.320 3.7 3 km ( 2 mi) SSE of Guy, AR
MAP 3.0 2010/10/09 04:13:40 35.307 -92.328 5.2 2 km ( 1 mi) SSE of Guy, AR
MAP 1.7 2010/10/09 04:09:21 35.305 -92.321 3.7 3 km ( 2 mi) SSE of Guy, AR
MAP 1.6 2010/10/09 03:24:59 35.304 -92.318 4.4 3 km ( 2 mi) SE of Guy, AR
MAP 1.8 2010/10/09 01:33:46 35.296 -92.302 5.3 4 km ( 3 mi) SE of Guy, AR
MAP 1.7 2010/10/08 21:05:00 35.307 -92.320 3.3 2 km ( 1 mi) SE of Guy, AR
MAP 1.2 2010/10/08 19:50:31 35.306 -92.328 3.0 2 km ( 1 mi) SSE of Guy, AR
MAP 1.2 2010/10/08 19:49:59 35.298 -92.322 4.7 3 km ( 2 mi) SSE of Guy, AR
MAP 1.7 2010/10/08 15:57:40 35.303 -92.321 3.4 3 km ( 2 mi) SSE of Guy, AR
MAP 1.6 2010/10/08 13:55:43 35.305 -92.310 4.5 3 km ( 2 mi) SE of Guy, AR
MAP 1.9 2010/10/08 11:45:49 35.297 -92.304 5.3 4 km ( 3 mi) SE of Guy, AR
MAP 2.0 2010/10/08 10:05:56 35.299 -92.299 4.9 4 km ( 3 mi) SE of Guy, AR
MAP 1.6 2010/10/08 09:44:52 35.306 -92.319 3.9 2 km ( 2 mi) SE of Guy, AR
MAP 1.7 2010/10/08 06:52:26 35.299 -92.319 3.4 3 km ( 2 mi) SSE of Guy, AR
MAP 1.5 2010/10/08 06:06:55 35.301 -92.321 4.3 3 km ( 2 mi) SSE of Guy, AR
MAP 1.8 2010/10/08 02:24:48 35.337 -92.300 4.4 3 km ( 2 mi) ENE of Guy, AR
MAP 1.7 2010/10/08 00:14:17 35.339 -92.291 5.6 4 km ( 3 mi) ENE of Guy, AR

REF:3384822
LOCATION: -41.34479, 173.72395
UTC: 2010/10/8 17:4:1
NZDT: 2010/10/9 6:4:1
DEPTH: 72km
MAG: 3.931ML
LOCATION: SW of Havelock, Marlborough, NZ
Reported Felt as;
MM4 Largely observed 55 Blenheim [13], Grovetown, Havelock [2], Johnsonville, Kaiteriteri [2], Lower Hutt, Mapua, Marahau, Mayfield, Motueka, Nelson, Pelorus Bridge, Picton [8], Rarangi [6], Redwoodtown, Spring Creek, Springlands [6], Takaka, Tuamarina, Wadestown, Waikawa [2], Whitby, Woodbourne
MM3 Weak 10 Blenheim [2], Grovetown, Lynmore, Nelson, Picton [2], Redwoodtown, Tahunanui, Witherlea
Total 65

Mm, 5.1 in Greece

Earthquake Details

* This event has been reviewed by a seismologist.

Magnitude 5.1
Date-Time

* Saturday, October 09, 2010 at 19:04:52 UTC
* Saturday, October 09, 2010 at 10:04:52 PM at epicenter
* Time of Earthquake in other Time Zones

Location 38.197°N, 22.769°E
Depth 26.6 km (16.5 miles)
Region GREECE
Distances 90 km (55 miles) WNW of ATHENS, Greece
90 km (55 miles) E of Patrai, Greece
140 km (90 miles) NNE of Kalamata, Greece
165 km (100 miles) S of Larisa, Greece
Location Uncertainty horizontal +/- 12.9 km (8.0 miles); depth +/- 0.2 km (0.1 miles)
Parameters NST=113, Nph=120, Dmin=99.1 km, Rmss=1.02 sec, Gp= 76°,
M-type=body wave magnitude (Mb), Version=8
Source

* USGS NEIC (WDCS-D)

Event ID usa0003xq8

[atsimg]http://files.abovetopsecret.com/images/member/5fd844b87f3f.png[/atsimg]

Any additional thoughts on the AR quakes, tho small, a lot of them. Getting close to the New Madrid which concerns me.

As always thanks for all the updates!

reply to post by crazydaisy


We are still only talking 102 events in the last 90 days, with the largest of those 3.0. (Sorry that is 102 for 1.0 mag to 3.0 mag) There will be smaller ones under 1.0.

It seems to be concentrated around Guy. I am still thinking oil and gas extraction from shale but no one has confirmed if this is a shale/oil/gas area.

The Calpine Network, Sonora Valley, not the only Geothermal area to experience quakes,

Bit of a hickup around Rotokawa Geothermal Power Station, Waikato this morning. Can't say have seen any activity here before (within 8km anyway)
3385455, -38.61594, 176.19199, 2010/10/9 20:44:13, 5, 2.342, NW of Rotokawa Geothermal Power Station, Waikato
3385458, -38.60737, 176.18044, 2010/10/9 20:49:54, 5, 2.728, NW of Rotokawa Geothermal Power Station, Waikato , Felt
3385465, -38.6099, 176.18983, 2010/10/9 21:6:31, 5, 2.33, S of Rotokawa Geothermal Power Station, Waikato


Map