Strong 6.7 Earthquake in Alaska

Magnitude 6.7
Date-Time

* Sunday, July 18, 2010 at 05:56:49 UTC
* Saturday, July 17, 2010 at 09:56:49 PM at epicenter

Location 52.970°N, 169.504°W
Depth 35 km (21.7 miles) set by location program
Region FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA
Distances

* 43 km (27 miles) W (274°) from Nikolski, AK
* 222 km (138 miles) WSW (244°) from Unalaska, AK
* 277 km (172 miles) WSW (243°) from Akutan, AK
* 1493 km (928 miles) WSW (241°) from Anchorage, AK

Location Uncertainty horizontal +/- 22.5 km (14.0 miles); depth fixed by location program
Parameters NST=137, Nph=137, Dmin=222.7 km, Rmss=1.02 sec, Gp=288°,
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 us2010ywaq

Just occurred. Still getting more on it.

This was in the Fox Island region of the Aleutian Island chain. It was offshore, but no significant tsunami is expected.

No reports of any damage yet. This is a pretty isolated area, and I'm not sure of the population, but here is the potential for damage fromRSOE EDIS:

Drivers have trouble steering. Houses that are not bolted down might shift on their foundations. Tall structures such as towers and chimneys might twist and fall. Well-built buildings suffer slight damage. Poorly built structures suffer severe damage. Tree branches break. Hillsides might crack if the ground is wet. Water levels in wells might change.

Dang, who would have thought they would have earthquakes in Alaska!

That is unless you look at the USGS site and realize the place is rocking and rolling constantly.

It would be BIGGER news if they went one day with NO quakes recorded in the state.

[edit on 18-7-2010 by Oneolddude]

[edit on 18-7-2010 by Oneolddude]

[edit on 18-7-2010 by Oneolddude]

A 6.7 quake is not one that would occur on an "average day" anywhere much less in Alaska. Even though, like California, there are constant, small quakes there anything 6+ isn't small especially if it's shallow.

reply to post by Oneolddude


Heh, as one that is constantly checking usgs, equake3d and equake (for FF) , your post made me laugh..thanks for that

d.

alaska has been getting alot of earthquakes in the last few years, probly the most this year, anything over 5. is tsunami risk, 6.7 is not common, it has been this year worldwide, but usualy 6.7s are very significant

anywho i was reading the warning on www.weather.gov... because the warning would apply to my location, and they had the worst kinda typo,

copy paste.

THE WEST COAST AND ALASKA TSUNAMI WARNING CENTER HAS ISSUED A REGIONAL TSUNAMI WARNING AND/OR WATCH AND/OR ADVISORY FOR OTHER PARTS OF THE PACIFIC LOCATED CLOSER TO THE EARTHQUAKE. BASED ON ALL AVAILABLE DATA THERE IS NO DESTRUCTIVE TSUNAMI THREAT TO HAWAII.


in the same paragraph they say they have issued a warning and that they havnt issued a warning. i was alittle confused and worried, so i just stared at the ocean for awhile to see if it would begin to reel back, and then they followed up on their mistake,

copy paste.

NOTE: ATWC DOES NOT HAVE A WARNING IN EFFECT. PREVIOUS
BULLETIN WAS IN ERROR. THERE IS NO WARNING IN EFFECT
ANYWHERE IN THE PACIFIC.

so while still confused if they are being truthfull atleast they clarrified, either way i'll know within the next two hours cause if the tsunami does exist thats when ill be hit. probly nothing to worry about though.

the quake fits with the 7-10 day 'window'

a window which follows the rule following the solar-lunar alignment we recently experienced as that eclipse on July 11th
eclipse.gsfc.nasa.gov...

WOW!!! Crazy, I guess that is what we get for drilling for oil and natural gas!

And I am waiting for the first person to mention HAARP

Latest aftershocks, good size ones too


4.3 2010/07/18 09:07:30 52.604 -169.484 35.0 56 km ( 35 mi) SW of Nikolski, AK
4.1 2010/07/18 07:52:08 52.702 -169.506 10.0 51 km ( 32 mi) WSW of Nikolski, AK
3.9 2010/07/18 07:48:50 52.724 -169.490 10.0 49 km ( 30 mi) WSW of Nikolski, AK
3.8 2010/07/18 07:32:04 52.652 -169.666 10.0 63 km ( 39 mi) WSW of Nikolski, AK
4.0 2010/07/18 06:53:28 52.745 -169.460 4.8 46 km ( 28 mi) WSW of Nikolski, AK
4.4 2010/07/18 06:15:51 52.649 -169.463 0.4 52 km ( 32 mi) SW of Nikolski, AK
3.8 2010/07/18 06:09:56 52.698 -169.591 6.9 56 km ( 35 mi) WSW of Nikolski, AK
6.7 2010/07/18 05:56:44 52.861 -169.839 10.0 66 km ( 41 mi) W of Nikolski, AK
4.3 2010/07/17 14:44:15 52.683 -169.732 7.6 65 km ( 41 mi) WSW of Nikolski, AK
3.4 2010/07/15 21:52:52 52.618 -169.989 0.8 84 km ( 52 mi) WSW of Nikolski, AK

reply to post by webpirate


Pretty hefty one, haven't heard of any damage, ect.

I am waiting and watching to see where this one will cause another quake.

Largest aftershock so far:

Magnitude 4.9
Date-Time

* Sunday, July 18, 2010 at 10:07:22 UTC
* Sunday, July 18, 2010 at 02:07:22 AM at epicenter
* Time of Earthquake in other Time Zones

Location 52.907°N, 169.933°W
Depth 6.1 km (3.8 miles) (poorly constrained)
Region FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA
Distances 60 km (35 miles) ENE of Yunaska Island, Alaska
70 km (45 miles) W of Nikolski, Alaska
1515 km (940 miles) WSW of Anchorage, Alaska
2295 km (1420 miles) W of JUNEAU, Alaska

News reports cite that only around 100 people would have felt it due to its relative remoteness and probably no damage.

www.todayonline.com...

JULY 19TH 2010


MAG 4.3 2010/07/19 17:25:10 52.820 -169.546 1.3 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.2 2010/07/19 17:09:22 52.756 -169.510 4.1 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 5.0 2010/07/19 14:24:41 52.703 -169.491 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.0 2010/07/19 14:22:33 52.687 -169.453 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.4 2010/07/19 13:43:22 52.679 -169.509 6.5 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.2 2010/07/19 13:30:27 52.684 -169.562 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 3.8 2010/07/19 13:26:27 52.868 -169.239 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.8 2010/07/19 12:52:01 52.668 -169.419 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.6 2010/07/19 12:51:17 52.424 -170.216 10.1 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.5 2010/07/19 11:46:58 52.688 -169.607 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.2 2010/07/19 11:15:37 52.669 -169.380 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.2 2010/07/19 10:18:54 52.717 -168.585 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.1 2010/07/19 10:07:09 52.483 -169.229 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.3 2010/07/19 09:37:33 52.745 -169.577 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 2.6 2010/07/19 09:36:13 63.485 -151.180 3.0 CENTRAL ALASKA

MAG 3.9 2010/07/19 09:16:08 52.779 -169.507 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.7 2010/07/19 09:02:06 53.091 -169.764 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 2.6 2010/07/19 08:58:16 63.464 -147.651 0.1 CENTRAL ALASKA

MAG 4.3 2010/07/19 08:53:59 52.561 -169.055 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 5.5 2010/07/19 08:23:15 52.752 -169.580 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 5.8 2010/07/19 08:20:31 52.769 -169.221 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.2 2010/07/19 05:37:11 52.733 -169.506 10.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.2 2010/07/19 05:00:00 52.848 -169.646 11.8 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.5 2010/07/19 02:04:32 53.798 -166.082 168.8 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.4 2010/07/19 02:04:00 52.753 -169.430 9.3 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.4 2010/07/19 01:08:18 52.678 -169.666 3.0 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

MAG 4.3 2010/07/19 00:00:51 52.756 -169.312 50.2 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA







I am new to earthquake watching.. is it normal to have this many earthquakes (aftershocks) in such a short amount of time? There are quite a few over 4.5 as well.

reply to post by starstrings


I think it is. This is nothing though compared to the aftershocks from the 7.e Easter earthquake in Mexico. Most all of the Southern Cali and Northern Baja quakes since then are considered aftershocks. And there have been well over 1,000.

reply to post by starstrings


Yep, these amounts of aftershocks are expected after large quakes.

wrong thread!

[edit on 20-7-2010 by MoorfNZ]