Quake Watch 2011

sure would be nice too know if it is slip
or breakoff,,
or breakthrough,
the land mass rises on two plates,,a harder base plate, and a less rigid plate on top,
then, there is a very high undersea cliff,
as far as i can tell,,
so might be movement of one of two things,,
old plate, moving everything, upward,
old plate falling downward

or
its splintering,,
splintering means volcanic activity, too follow.

Originally posted by lasertaglover
With the varying depths from Vanuatu, are these volcanic? Or foreshocks?

?

Didn´t a very similiar Sequence occur before the Honshu (The Mag 9.0) Quake? I mean this 7+ Double Tap.

Edit: @Bob,English isn´t my first Language,but thanks for correcting me anyway

reply to post by Shenon


its double tap,, not tab,, but good point,, anyone?

I just found this:

None volcano in the 100-kilometer radius.


hisz.rsoe.hu...

OFFSHORE BIO-BIO, CHILE

every time,,,lol
sorry inside joke,

Originally posted by BobAthome
OFFSHORE BIO-BIO, CHILE

every time,,,lol
sorry inside joke,

edit on 20-8-2011 by BobAthome because: (no reason given)

*tilts head*

What?! lol

There is a live twitter feed at the bottom of this link to the Vanuatu Daily Post

www.dailypost.vu...

reply to post by lasertaglover


Well don't quote me, and my program crashed getting into GE, but I guess these are tectonic. I was going to have a look.

That does not mean they may set something volcanic off however.

reply to post by PuterMan


Yes, I had not looked to closely at where in Vanuatu, but more than likely tectonic based on distances. Port Vila is not a good place to be right now.

With the relative sizes, do you think foreshocks?

Probably a Swarm, a lot of the aftershocks are still in mb so if they were converted to Mw they might be just as big as those 7's.
Note the 2nd one is Mw converted from Ms there is no mb reading for it.

We'll have to wait for the Russians.

Half time, we are losing

reply to post by lasertaglover


Difficult that one. I guess you could say that the 7.0 and preceding 5+ ones were after shocks of the 7.1, but whether you could call the 5.1 before it a foreshock I am not so sure. Seeing as 5.1 is not an abnormal magnitude for this area I would think probably not.

I think a seismologist would need to say if these are two separate entitles. but I don't see how they can be as they are so close together. I think the 7.0 is an aftershock personally, even though it is nearly the same magnitude.

reply to post by muzzy


bingo,, its like having every play ,,called in from the sidelines,,
very frustrating for players,,,

This was an update on the 7.0 aftershock that came in from the original 7.5 -
that came into my email account -
Did anyone else get this?

7.4 M - VANUATU
Preliminary Earthquake Report Magnitude 7.4 M
Date-Time

20 Aug 2011 18:19:27 UTC
21 Aug 2011 05:19:27 near epicenter
20 Aug 2011 10:19:27 standard time in your timezone

Location 18.200S 168.000E
Depth 36 km
Distances

59 km (37 miles) SSW (212 degrees) of PORT-VILA, Vanuatu
199 km (124 miles) NW (318 degrees) of Isangel, Vanuatu
311 km (193 miles) SSE (163 degrees) of Santo (Luganville), Vanuatu
1850 km (1150 miles) ENE (59 degrees) of Brisbane, Australia

Location Uncertainty Horizontal: 0.0 km; Vertical 0.0 km
Parameters Nph = 24; Dmin = 286.4 km; Rmss = 1.46 seconds; Gp = 61°
M-type = M; Version = 1
Event ID AT 00lq8o8f ***This event supersedes event PT11232002.

reply to post by spinkyboo


It was posted as two - see my post above - and the 7.4 got deleted as I suspected it would.

We are left with 7.1 and 7.0 now.

Good morning gang

I see we have had a double whammy at Vanuatu Don't have much to say except wow. You guys, as always, are on the ball.
Oh, I hope these were the Main and the After and not the Fores.
Love to all,
BG

reply to post by PuterMan


ya have too be quick;;
heres what i got on first two,,original state,, pure,,

first
--------
7.5 Mw - VANUATU
Preliminary Earthquake Report Magnitude 7.5 Mw
Date-Time
20 Aug 2011 16:55:02 UTC
21 Aug 2011 03:55:02 near epicenter
20 Aug 2011 08:55:02 standard time in your timezone
Location 18.259S 168.068E
Depth 40 km
------------------------
second
--------------
7.0 2011/08/20 18:19:21 -18.343 168.156 2.0 VANUATU

18.260°S, 168.069°E ,,,first quake,,,(25.2 miles)
18.343°S, 168.156°E ,,,second quake,,((1.2 miles)

reply to post by muzzy


There are mb readings for both on EMSC, including the first which they still have at 7.5

Looking at the two sets I would say that EMSC is wrong and that will be adjusted.

ETA: Note that on USGS the readings in the phase data are eP, and therefore Mb, where as on the second one there is not one eP reading so these are almost certainly all Ms.

I may be wrong but there is just a small possibility that eventually, maybe not until after it goes off the 7 day listing, this second one will be reduced to 6.9

The average is a fraction over 7 but FORT is showing 8.1 in that list.

reply to post by BobAthome


See this post

www.abovetopsecret.com...

It has all three

reply to post by PuterMan


so thats three confirmed 7
in last 3 hours ?
correct?

quakes.globalincidentmap.com...

reply to post by BobAthome


No 3 posted but only 2 confirmed.

What, you want more!!