Quake Watch 2010

We got incoming at about 6:08 UTC. Another in Alaska...My guess: 4.7 to 5.5

Waiting on USGS


was a 5.1 (now revised to a 5.4)

earthquake.usgs.gov...


wow, so soon? at about 6:25 UTC another one...Guess 4.0 to 4.7...they say 5.1 preliminary
earthquake.usgs.gov...

Alaska (Aleutian Islands) seemed to be quieting down...It's flaring up again, same spot as recent 6.4

reply to post by crazydaisy


I'm on the new madrid. I remembered that they came out with research findings earlier this year about these little ones being aftershocks. Here's the link to that article

Commercial Appeal

Aftershocks or not, I feel a whole lot better not working in any of those high-rises with foundations planted on the sandy shores of the mississippi river.

Originally posted by TrueAmerican
We got incoming at about 6:08 UTC.

Incoming? High or low - where are these bandits. They are not showing on radar. Man your battle stations. Lookouts report bandits at 6:08. Whoop, Whoop, Whoop, All hands on deck, all hands on deck. Launch torpedoes. Choppers to ready........

.......Oh you meant earthquakes.

Originally posted by sheeplemama_awakening
reply to post by crazydaisy

 

I'm on the new madrid. I remembered that they came out with research findings earlier this year about these little ones being aftershocks. Here's the link to that article

From that article:

For all its lethal, concrete-crumbling power, the Haiti earthquake this month was no bigger — and probably a good bit smaller — than the seismic shocks that convulsed the New Madrid fault zone not once or twice, but three times during a ghastly winter nearly 200 years ago.

What? I don't think I like the tone of that. Makes it sound like those quakes were way bigger and yet in a couple of paragraphs states:

1811-12 shocks, which were estimated to have magnitudes of up to 7.8

Mm, 5 x bigger and 11 x stronger than Haiti - absolutely nothing in earthquake terms, especially when you consider that Chile at 8.8 was 50 times bigger and 384 times stronger than Haiti.

Something does not stack up here because it goes on to say:

A 2008 study by the Illinois-based Mid-America Earthquake Center projected the effects that a magnitude 7.7 quake would have on the New Madrid region today. It found that Tennessee would experience the greatest losses, with more than 63,000 people killed or injured, 260,000 others displaced, and economic damages exceeding $56 billion.

Unlike Haiti, where a lack of building codes was a major factor in the catastrophic damage and the estimated 200,000 deaths, Memphis and Shelby County have had seismic construction standards in place for nearly two decades.

Eh, that is only 4 x bigger and 8 times stronger YET

The earthquake and tsunami that struck Chile last month killed 700 people and caused damages of nearly US$30bn (€21.7bn), the government said today.

Source

and that quake was 13 x bigger and 45 x stronger, yet the US with it's building codes will suffer 63,000 deaths (62,300 more than Chile) and almost twice the cost in damages?

BS!

That is just sheer scaremongering.

reply to post by PuterMan


I don't think the figures in that article are out of line. In fact, they may be conservative. A 7.7 on the New Madrid?

Now you of all people ought to remember the different rock composition on the east side of the country, and the major differences of wave propagation that a quake that big would have compared to cities in the west. Not only would Memphis be in big trouble, but cities within a 750 km radius would suffer to a lesser, but still lethal degree. I am talking Nashville, Springfield, St. Louis, Little Rock and Huntsville to name just a very few. And within a 100 km radius of that quake, lookout. For falling buildings. On top of you.

I think the population concentrations are different also. A lot more people we are talking here affected.

An 8.5 on the New Madrid, and I wouldn't be surprised to hear of casualties in the hundreds of thousands, and injuries over a million.

reply to post by sheeplemama_awakening

I had no idea Madrid was shutting down. Thanks for the link, interesting info.

reply to post by TrueAmerican


Agreed there is a difference between East and West - OF AMERICA, but Chile is not on the west coast of America, at least not North America. Now as to whether the same conditions apply in the South American continent I do not know.

Sorry but if there was a 7.7 - which was the premise of the article - then that damage would NOT be as stated and that is why I cry BS.

This has no reflection upon the fact that it could be larger and then there would be damage. Within the parameters quoted I say that the article was scaremongering. Whether it was correct in it's assumptions however is another matter.

Actually thinking about it Chile is probably not like the NMSZ since it not mainly sedimentary rock which tends to exacerbate seismic damage.

There's really no telling what the consequences of a large earthquake would be in the area. Just educated guesses as best as can be made. See link to USGS post on Memphis below.
From my personal knowledge, Memphis just in a bad position along the fault and not architecturally well standing with much of downtown not constructed under the current seismic guidelines. One building downtown was built for a 'major one' at it's the Autozone headquarters (pretty cool - it sits on a foundation of giant springs). Much of the old cotton warehouses have just been retrofitted and 'brought up to code' by addressing the number and locations exits and the exterior from pulling from the exterior facades.
Coming from an architectural career, I'm was so happy for the day that I was no longer working downtown. I was on a 6th floor when the 4.3 was a few years back - our own retrofitted warehouse was swaying and the water jug on my desk sloshing back and forth. Knowing that much of the city is sitting on such sandy sediment was unsettling to say the least.

Here's a link to further technical research into Memphis and probable consequences. I've posted the last paragraph from the article's summary.
Link to full article from USGS on Memphis Sediment

The maps presented herein represent our best estimate of the ground
motion hazard for Memphis. (We leave the choice of risk level and policy setting to
others.) The Memphis hazard maps incorporate state-of-the-art science, our current
understanding, and our knowledge of both what we know and don’t know. Future
improvements in our knowledge and understanding will certainly improve our estimates
and reduce the overall uncertainty. We conclude on a cautionary note, emphasizing that
the Memphis maps are regional in nature and not site-specific. They should not be
directly used in a site-specific analysis and structural design, but rather only as guidance
as to what can be generally expected.

See, just some 'guidance' as what is generally expected. Not quite fear mongering from them, but still not reassuring.
I apologize if this is getting the thread off topic with my posts, but I don't take this topic or region of the country lightly.

REF:3385629
LOCATION: -44.58447, 168.11687
UTC: 2010/10/10 4:10:33
NZDT: 2010/10/10 17:10:33
DEPTH: 91km
MAG: 4.175ML
LOCATION: Hollyford Valley , Fiordland, NZ
GEONAME: Nr. Little Homer Saddle

Map (larger red dot NE of Milford Sound)

Bit of activity in the Virgin Islands..


MAP 3.3 2010/10/11 07:33:45 18.901 -64.400 65.3 VIRGIN ISLANDS REGION
MAP 3.1 2010/10/11 07:13:20 19.281 -64.585 24.7 VIRGIN ISLANDS REGION
MAP 2.9 2010/10/11 05:55:34 19.160 -64.459 24.5 VIRGIN ISLANDS REGION
MAP 3.1 2010/10/11 05:11:26 19.110 -64.549 42.2 VIRGIN ISLANDS REGION
MAP 3.3 2010/10/11 01:48:17 19.334 -64.434 49.0 VIRGIN ISLANDS REGION
MAP 3.0 2010/10/11 01:15:46 19.104 -64.198 24.2 VIRGIN ISLANDS REGION

Originally posted by PuterMan


and that quake was 13 x bigger and 45 x stronger, yet the US with it's building codes will suffer 63,000 deaths (62,300 more than Chile) and almost twice the cost in damages?

BS!

That is just sheer scaremongering.

edit on 10/10/2010 by PuterMan because: Added source

I will just note that my house rattled pretty good when a 5.1 hit couple years ago on the new madrid. Granted I do not have a lot of EQ experience, but I honestly do not think my house (5 years old) would survive a 7+ quake, nor any in my neighborhood would survive. Hopefully I am wrong!

Some more shaking in AR. Happened awhile ago, but it not posted yet it seems.

MAP 2.5 2010/10/11 13:43:31 35.292 -92.341 6.7 4 km ( 2 mi) S of Guy, AR
MAP 3.8 2010/10/11 13:33:40 35.304 -92.317 5.0 3 km ( 2 mi) SE of Guy, AR

MAP 3.5 2010/10/11 16:06:04 35.313 -92.333 6.1 1 km ( 1 mi) S of Guy, AR

I need a bit of help please:

equake alert does not work with the newest version of firefox...

I had firefox, tried out chrome, came back to firefox, tried to download equake and it won't install.

Does anyone know of something similar I can use?

Well Arkansas seems to be picking up in frequency
Even had a 4.0 today..
Hmmmm

reply to post by iamsupermanv2


I'm using 3.6.10 and it works fine... if you have FB check out the eQuake Page and new update info. Or ask a question as to why yours won't work.

reply to post by Lil Drummerboy


I was wondering when someone would comment on this - I'm not up on the seismicity of the area but it sure looks like there are a fair few quake going on there ...

reply to post by MoorfNZ


I'll check that out, thanks.

What made me ask is it said on install that it is not compatible with this version...

But I am having quite a few computer problems...so that could be the issue.I'll go bug the facebook page! thanks again.

NEAR THE SOUTH COAST OF PAPUA, INDONESIA
Magnitude
5.9
Date-Time
Tuesday, October 12, 2010 at 10:21:35 UTC
Tuesday, October 12, 2010 at 07:21:35 PM at epicenter

Location
4.937°S, 133.722°E
Depth
9.9 km (6.2 miles)

Distances
105 km (65 miles) NNW of Dobo, Kepulauan Aru, Indonesia
315 km (195 miles) WSW of Enarotali, Papua, Indonesia
885 km (550 miles) NNE of DARWIN, Northern Territory, Australia
2985 km (1850 miles) E of JAKARTA, Java, Indonesia
Location Uncertainty
horizontal +/- 13.7 km (8.5 miles); depth +/- 1.2 km (0.7 miles)
Parameters
NST=130, Nph=131, Dmin=947.3 km, Rmss=0.94 sec, Gp= 32°,
M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=8
Source
USGS NEIC (WDCS-D)
Event ID
usa0003ykg


very shallow

reply to post by berkeleygal


Wow - 9.9km down for a 5.9 - that must have sounded very loud indeed.