Quake Watch 2011

reply to post by TriForce


You posted as I was looking.

No, too deep I think. Don't see any tsunami warnings yet.

reply to post by PuterMan

I really need to say whats on my mind more, I was just looking at BMG yesterday and thought hmmmm they haven't had a big quake there for a while

Not suggesting I willed it

New Moon.

2011 Apr 3 14:34

reply to post by muzzy


So it was your fault then!

Did you notice that the Fiji quake rally hardly tweaked LISS at all. It was almost as deep as that one in Acre, Brazil last year and 0.1 magnitude more but that one blackened the whole shebang. (As far as I can remember)

I don't usually have strange feelings but today seems heavy and stagnant.
Lots of pressure. Not barometrically, but impending.

Have you seen this thread? www.abovetopsecret.com... I thought it was too deep to create a tsunami?

reply to post by PuterMan

Yeah I was looking on SNZO LISS graph yesterday and wondered where it went to, looked like just a big Mag 5 on there.

BMKG are calling it a 7.1 ML

Date 04/04/2011-03:06:39 WIB (UTC +7)
Magnitude 7.1 SR (ML)
Depth 10 Km
Location 10.0 LS 107.69 BT
Felt at (MMI):
IV Cilacap, IV Pangandaran, II Karangkates , II Denpasar, II Jogja, II Cisarua, II Purworejo,

www.bmkg.go.id...

reply to post by Agarta


I have indeed. There was no warning issued by NOAA - ptwc.weather.gov...

There was also no warning from www.bom.gov.au... (Australia)

And it was a 6.7 !

reply to post by muzzy


Mm, USGS have 6.7 for Richter ML.

Ah of course - can't have another 7 for the catalogue!

reply to post by PuterMan


Thats what I thought as well.

reply to post by Agarta


Here however is something very curious:

This is from the Indonesian listing

11-Mar-11
12:46:22 WIB 38.49 N - 142.79 E 8.9 Richter Scale 44 Km 144 km TENGGARA Ofunato
11-Mar-11
12:46:22 WIB 38.49 N - 142.79 E 8.5 Richter Scale 10 Km 144 km TENGGARA Ofunato

This is of course the Tokohu 9.0 but.....

They have it as 2 8 mag quakes at different depths. They are saying not 1 x 9.0 but 1 x 8.5 and 1 x 8.9

In terms of energy not very much difference. Could they be right I wonder?

8.6 501,187,234
8.9 1,412,537,545
=1,913,724,778

9 1,995,262,315

reply to post by PuterMan


Is it possible to differentiate two quakes at the same time in the same place at different depths?
Or could it be that the plate shifted and they picked up the top of the plate and the bottom of the plate?

reply to post by Agarta


Yes it is possible, and it has happened before that a big quake has later been split into two.

I can't remember that last one off hand - which is to say I can't remember the name but it was not long ago.

reply to post by PuterMan

The Samoa 8.0 mag quake of 2009 was actually 2 x 7.9's from memory, but I wouldn't depend on that (my memory)
I think there was another couple since then, Marianas ??

reply to post by PuterMan
reply to post by muzzy


Thank you guys just cant stop learning or I will drift off into the darkness of night

Been awful quiet out there for at least 5 hours...

Last one was 2.5 2011/04/04 18:40:33 46.248 -122.047 11.6 WASHINGTON

at Mt St Helens

earthquake.usgs.gov...

reply to post by berkeleygal


This is the last one near Japan (not an Aftershock though) from EMSC

Magnitude mb 4.7
Region BONIN ISLANDS, JAPAN REGION
Date time 2011-04-04 19:43:47.0 UTC
Location 27.98 N ; 139.46 E
Depth 533 km
Distances 767 km S Hamamatsu (pop 605,098 ; local time 04:43:47.4 2011-04-05)
711 km SE Nachikatsuura (pop 18,712 ; local time 04:43:47.4 2011-04-05)


Source parameters not yet reviewed by a seismologist


Other than that...no Aftershocks whatsoever for over 11 Hours...nothing,nada...

Originally posted by skitzspiricy

So I thought, wouldn't it be cool if someone could make a Gif that would show Quakes starting from the Big One in Japan, or the day before, up until now, happening specifically around the Ring of Fire. To see if there is a clockwise pattern or domino effect happening.

This is way beyond my capabilities and is probably a huge amount of work. So just throwing the idea out there.

edit on 2-4-2011 by skitzspiricy because: (no reason given)

Here you go then

This took me all day, 69 csv files and 71 images, for the end result that only lasts 1 minute and 45 seconds

Animated Gif of World Mag 6+ quakes Feb 21 to Apr 3

Couple of things I noticed from the map.
After the initial 7 Mag quake offshore Japan the next 2 quakes made a triangle around the Phillipine Plate and back to Japan for the 9.0.
Near the end the trail line back from the Crete quake cuts straight back to Fiji and lines up perfectly with the line from the South Atlantic quake to the Soloman Is. (earlier), looks cool but of course the Earth isn't Flat like the map
Otherwise its all pretty random.

I did another one for comparison, from Jan 1 up till Feb 20th, I enjoyed doing that one as the trail lines moved around a bit more
Animated Gif of World Mag 6+ earthqukes from Jan 1 to Feb 20

Been a good exercise though, once I got the settings right on the GPS Visualiser its not too hard, just takes time to edit the images. I initially did something like that map you showed from EMSC, with the squares, but I found it really hard to keep track of the sequence, I think the trail lines are better.

The Aftermath: I'm sick of the sight of the words " off the Coast of Honshu, Japan" and "near the Coast of Honshu, Japan", in fact I nearly fell asleep in the middle of making the images, and they started to blend together and I lost my place and had to start again about 20 images in. Even when you are watching it, near the middle when they are hammering Honshu one after the other you have to keep your eye on the text box to see that the animation is still going.

Having said that it must have been nerve racking for those people on Honshu, I've felt a couple of Mag 6's that were within 100km of me and you really do have to sit up and take notice of them.

You can see both Gifs on my World 7+ Blog Quake Trails (and perhaps more when I get time, I'd like to see around Sept last year around the Christchurch 7.1 and also the year before around the Dusky Sound 7.6)


Edit: I just tried the links and unfortunately those start off in the middle of the sequence (its a loop), it works better if you go to the Quake Trails page. On there, any time you want to start the loop from the start just click on Refresh Page on your browser

Edit 2: Oh no it doesn't I don't know how you reset it to the start

reply to post by Shenon

Other than that...no Aftershocks whatsoever for over 11 Hours...nothing,nada...

I hope quiet is a good thing - I always worry about that where
aftershocks are to be expected..