Quake Watch 2011

reply to post by PuterMan


what would be nice is a "REAL LIVE IN TIME IMAGE from NASA, of the THERMAL MOVEMENT,, squirting up the VOLCANIC TUBES,,

but hey its only ATS,, sorry, but you asked,
and were only peasants,, somebody has the 3d somwhere,,,right,,

We lost (the Rugby) 18-5

This is where the Russians fall down, they are not reporting the aftershocks/ smaller quakes in the "swarm".

2011-08-20 16:55:03.0, -18.24, 168.04, 40km, 7.2Ms/15 sta, 6.4mb/16 sta, Vanuatu Islands
2011-08-20 17:13:06.5, -18.29, 168.06, 33km, - , 6.0mb/11sta, Vanuatu Islands

www.ceme.gsras.ru...

Lets just look at the series in mb (seeing as at > 6.5mb the siesmos shouldn't be saturated and mb still apply)
Data is from usgs unless marked otherwise.

2011/08/20 16:55:03, -18.260, 168.069 , 40.6km, 6.2mb/52sta, 6.4mb/16 sta [ras], VANUATU
2011/08/20 17:11:36, -18.289, 167.755, 40.9km, 5.6mb/54sta, VANUATU
2011/08/20 17:13:07, -18.287, 168.062, 37.3km, 5.9mb/58sta, VANUATU
2011/08/20 17:44:27, -18.770, 167.924, 9.5km, 5.1mb/37sta, VANUATU
2011/08/20 18:02:01, -18.608, 167.910, 35.3km, 5.2mb/84sta, VANUATU
2011/08/20 18:19:25, -18.287, 168.132, 28.5km, 7.0Ms/60sta, 6mb[ras], VANUATU
2011/08/20 19:23:07, -18.200 , 168.044, 60.4km, 5.0mb/74sta, VANUATU

how far is that 3rd one from being a 7.0Mw eh

Impossible to split these into two or more quakes on SNZO, maybe it will be clearer when the traces move up higher in the graph later in the day.
The Radio News here is still saying it was a 7.5 amd a 7.2.

reply to post by summer5


Unfortunately, as usual, RSOE are wrong.

[atsimg]http://files.abovetopsecret.com/images/member/9ebd279f97e8.png[/atsimg]

reply to post by PuterMan


I should hold off adding the 2nd one to the Mag7+Project 2011 page for now then?

reply to post by muzzy


Well it could be 8 days before it changes so up to you, and of course it may not change.

I am putting it in as a 7.0

Well looks like Santorini is back in the game,

reply to post by muzzy


Take a look at this muzzy. I have pulled the scale way back on this plot so you can actually see what is happeneing. This is G.DZM about 450 Km from the events. See how MUCH smaller the second one is?

DZM.G.00.BHZ.2011.232

Seeing as how it was shallower than the 7.1, albeit not by much, I would have expected fairly similar signatures.

Just for a laugh take a look at this one which is only 290 Km from the event. Can you see either quake? Eh

LIFNC.ND.00.HNZ.2011.232

reply to post by BobAthome


When? How much?
I ask because the antipodes of Vanuatu is NW Africa, not hugely acurate...but thinking med fault line here.
Rainbows
Jane

This might be useful. I site I do like.
earthquake-report.com...

Got tsunami report on it too

Rainbows
Jane

Ramping up again?....11 minutes ago according to EMSC



Magnitude mb 5.1
Region VANUATU
Date time 2011-08-20 21:38:20.7 UTC
Location 18.27 S ; 167.92 E
Depth 10 km
Distances 1110 km W Suva (pop 199,455 ; local time 09:38:20.7 2011-08-21)
72 km SW Vila (pop 35,901 ; local time 08:38:20.7 2011-08-21)

Rainbows
Jane

reply to post by PuterMan

Graph 1 . yes definitely a big difference
Graph 2. nope

I'll put the 2nd one in, while I have the file up anyway, can always delete it if it changes down.

reply to post by angelchemuel


Great, I'll save that page.HAndy to pick up some text to add to my tags.

So the Hawaii Tsunami Centre again proves it just isn't worth the funding, issuing incorrect reports again, scaring ( or not warning in this case) the public

Originally posted by muzzy
how far is that 3rd one from being a 7.0Mw eh

probably a long way, according GFZ who had lower Mw readings of 7.0 for both of the larger quakes, have converted the 5.9mb (usgs0 to 6.4Mw

GFZ Event gfz2011qhjh
11/08/20 17:13:06.81
Vanuatu Islands
Epicenter: -18.288 168.122
MW 6.4
GFZ MOMENT TENSOR SOLUTION
Depth 44 No. of sta: 45
Moment Tensor; Scale 10**18 Nm
Mrr= 4.64 Mtt=-0.38
Mpp=-4.27 Mrt= 0.51
Mrp= 0.34 Mtp=-0.38
Principal axes:
T Val= 4.71 Plg=83 Azm=335
N -0.15 7 165
P -4.56 1 75

Best Double Couple:Mo=4.6*10**18
NP1:Strike=158 Dip=44 Slip= 80
NP2: 352 47 99

geofon.gfz-potsdam.de...

Muzzy...we need (or I do anyway) lol ......you and Puterman to share thoughts on these. I know right now it is all technical but as time goes by please share your thoughts with us regarding specifics like...

Is it purely tectonic, is it volcanic,,,,is it just an eq lol and...what do you see coming next if anything.

There has got to be a why and what now forming in your thought range?? Maybe a little? It is me..and just wanting your and Puterman's thoughts. ;-)

Thanks!!! xoxoxox

Jenn

Originally posted by muzzy

This is where the Russians fall down, they are not reporting the aftershocks/ smaller quakes in the "swarm".

2011-08-20 16:55:03.0, -18.24, 168.04, 40km, 7.2Ms/15 sta, 6.4mb/16 sta, Vanuatu Islands
2011-08-20 17:13:06.5, -18.29, 168.06, 33km, - , 6.0mb/11sta, Vanuatu Islands

www.ceme.gsras.ru...

Too enthusiastic to get the data I didn't check the times on RAS, they hadn't listed the 2nd Mag 7 at that stage.

(on that same link) now updated the 2nd quake was bigger than the 1st in mb but less in Ms

2011-08-20 18:19:24.7, -18.15, 168.21, 33, 7.1Ms/14sta,, 6.6mb/13sta, Vanuatu Islands

Oh I give up lets call it

2 "very strong" quakes Vanuatu, the first causing a 1m high tsunami at Efate

There

reply to post by MamaJ


Tectonic and Volcanic go together in this region because the volcanos ( the Vanuatu islands themselves) are so close to the Plate Margin (Subduction Zone)

So the Australian Plate slips under the Pacific Plate at the New Hebrides Trench ( BTW Vanuatu used to called The New Hebrides Islands) or the PP slips over the AP depending on what theory you follow, its a very complex corner of the Australian Plate.
Subduction usually means there are volcanos on the overlaying Plate.

I don't think these quakes are caused by the Volcanos themselves, Mag 7's are not normally what you get when a volcano is about to erupt, its usally a lot of smaller quakes like multiple Mag 4's in a short space of time.
Having said that, Yasur volcano on Erromango Island which is an active volcano is only 123 miles to the SE of these quakes, so there is an outside possibility there may be some new activity there in the coming days/months
You can keep one eye on here, John Seach's site is one of the best at keeping up to date what is erupting at any given time
volcano news

reply to post by muzzy


Ahhhh...yes...that is what I needed. Thank you so much! I will go and venture off of here and check out the link. I was not sure if there was any volcanic activity associated to this one or not...good to know the other information. I will of course stay tuned here and also check out that link....THANKS again! ;-)

This is going to be a looooong night.....2 x5's in the last half hour

2011-08-21 00:23:39.5
13min ago 18.29 S 167.68 E 10 mb 5.3 VANUATU 2011-08-21 00:36
2011-08-21 00:09:22.0
28min ago 18.22 S 167.54 E 16 M 5.0 VANUATU

This is still on BobAtHome's fault/rift/fissure area

Rainbows
Jane

First one above already upgraded to 5.5

2011-08-21 00:23:40.0
20min ago 18.20 S 167.87 E 40 mb 5.5 VANUATU
Rainbows
Jane

Another 5.2 & 5.3
2011-08-21 02:09:22.0
42min ago 18.72 S 168.20 E 92 mb 5.2 VANUATU 2011-08-21 02:37
2011-08-21 01:54:47.0
57min ago 27.54 N 57.63 E 60 ML 3.8 SOUTHERN IRAN 2011-08-21 02:30
2011-08-21 01:25:05.0
1hr 27min ago 40.77 N 27.42 E 14 MD 2.9 WESTERN TURKEY 2011-08-21 01:45
2011-08-21 01:24:12.0
1hr 28min ago 18.56 S 168.14 E 30 mb 5.3 VANUATU

Does a 7.2 normally cause LISS to go this potty worldwide?
aslwww.cr.usgs.gov...

Rainbows
Jane