Quake Watch 2010

Just thought I'd throw in the "Felt That" (4.5) that got me out of bed this morning here in Canterbury:

Universal Time September 29 2010 at 20:39
NZ Daylight Time Thursday, September 30 2010 at 9:39 am
Latitude, Longitude 43.63°S, 172.38°E
Focal Depth 11 km
Richter magnitude 4.5
Region Canterbury
Location

* 20 km north-east of Leeston
* 20 km south-west of Christchurch

Now Geofon have gone back to 2 events, both 7's
2010-09-29 17:11:27 7.1 5.07 S 133.87 E 10 M Aru Islands Region, Indonesia
2010-09-29 17:10:52 7.2 4.93 S 133.80 E 10 M Irian Jaya Region, Indonesia

Now the whole Pacific Plate is shaking

5.4 2010/09/30 01:07:40 -5.167 133.874 10.0 KEPULAUAN KAI, INDONESIA
5.8 2010/09/30 00:26:19 -36.532 -73.110 9.9 OFFSHORE BIO-BIO, CHILE
5.3 2010/09/30 00:24:12 24.703 141.197 222.1 VOLCANO ISLANDS, JAPAN REGION

reply to post by Anmarie96


Thats exactly what i was thinking, waiting for more info right now but this is a lot in under an hour or so, hopefully no more 7's


aslwww.cr.usgs.gov...

Magnitude 5.8 - NEAR THE NORTH COAST OF PAPUA, INDONESIA

Date-Time
Thursday, September 30, 2010 at 03:45:04 UTC
Thursday, September 30, 2010 at 12:45:04 PM at epicenter

Location
0.259°S, 133.440°E
Depth
23.2 km (14.4 miles)
Region
NEAR THE NORTH COAST OF PAPUA, INDONESIA
Distances
100 km (60 miles) NW of Manokwari, Papua, Indonesia
255 km (155 miles) ENE of Sorong, Papua, Indonesia
1380 km (860 miles) NNE of DARWIN, Northern Territory, Australia
3030 km (1880 miles) ENE of JAKARTA, Java, Indonesia
Location Uncertainty
horizontal +/- 13.4 km (8.3 miles); depth +/- 5.4 km (3.4 miles)
Parameters
NST=158, Nph=172, Dmin=322.8 km, Rmss=0.87 sec, Gp= 29°,
M-type=body wave magnitude (Mb), Version=6
Source
USGS NEIC (WDCS-D)
Event ID
us2010bvak

now its the north coast

No doubt aftershocks from this morning's 2 large events:

MAG 5.8 2010/09/30 03:45:05 -0.259 133.440 23.2 NEAR THE NORTH COAST OF PAPUA, INDONESIA

MAG 5.6 2010/09/30 02:11:03 -4.982 133.849 10.0 NEAR THE SOUTH COAST OF PAPUA, INDONESIA

reply to post by muzzy


Just downloaded the data for 29th UTC off the NZ Earthquake Catalogue

Been upgraded to 6.532ML
Lat -36.73986 Long 177.22121
Depth 281km

reply to post by muzzy


All of this just goes to show what a wonderfully inexact science the definition of the magnitude of an earthquake is. We have three different sets of people/programs using the same data and producing different results that they change frequently.

I think I will stick to the new scale!

Hmmm

MAP 2.7 2010/09/30 10:34:57 37.139 -117.388 4.0 NEVADA
MAP 3.2 2010/09/30 08:41:59 37.171 -117.312 8.2 NEVADA
MAP 4.3 2010/09/30 08:37:36 37.143 -117.378 0.9 NEVADA

[atsimg]http://files.abovetopsecret.com/images/member/dbe780b51665.gif[/atsimg]

Yes, lots of activity going on here tonight.

earthquake.usgs.gov...

5.5 2010/09/30 09:54:10 5.095 94.791 52.0 NORTHERN SUMATRA, INDONESIA
5.6 2010/09/30 09:00:25 19.759 121.436 15.3 BABUYAN ISLANDS REGION, PHILIPPINES
4.7 2010/09/30 04:53:43 72.844 -151.933 16.5 238 km (148 mi) NE of Barrow, AK

I was going to post this yesterday but I got sidetracked -

2.2 2010/09/29 12:04:27 44.141 -115.018 14.7 11 km ( 7 mi) SW of Stanley, ID
2.1 2010/09/28 10:16:59 44.135 -115.005 14.2 11 km ( 7 mi) SSW of Stanley, ID
2.8 2010/09/28 09:18:36 44.144 -115.006 14.1 10 km ( 6 mi) SW of Stanley, ID
2.4 2010/09/27 02:59:43 44.143 -115.000 13.9 10 km ( 6 mi) SSW of Stanley, ID

hmm Nevada EQ's only 16KM from Ubehebe Craters... volcanic???

Originally posted by ressiv
hmm Nevada EQ's only 16KM from Ubehebe Craters... volcanic???

Well it doesn't appear so, at least from this map:

vulcan.wr.usgs.gov...

In their phase data, USGS lists CI.GRA as the closest station, and it is available in GEE- so I've been watching it... I don't see anything close to a harmonic tremor of any kind... So I am gonna havta conclude that it is not volcanic for all of the above reasons....

Plus, this is the area where not too long ago we had a swarm of quakes...I think it is fault related.

reply to post by PuterMan

Yeah your scale actually makes sense.

It would be easier if they used the MM scale for all quakes, but of course 90% of the quakes USGS, Geofon and EMSC report no one felt them.
I will always go with the locals reports, there is no way a 6 or a 7 would not be felt in New Zealand, the country is just too small.


I see the Aussies finally admitted there were 2 quakes yesterday
29/09/2010 17:11:32 -4.957 134.0327 30 7.2 Irian Jaya Region, Indonesia, New Guinea
29/09/2010 17:10:49 -4.957 134.0327 0 7.2 Irian Jaya Region, Indonesia, New Guinea
www.ga.gov.au...

but...............
Geofon has changed again overnight
2010-09-29 17:11:24 7.2 5.01 S 133.73 E 10 M Aru Islands Region, Indonesia
2010-09-29 17:10:51 6.9 4.89 S 133.83 E 10 M Irian Jaya Region, Indonesia

and usgs has downgraded the first one even further
7.2 2010/09/29 17:11:24 -4.920 133.783 12.3 NEAR THE SOUTH COAST OF PAPUA, INDONESIA
6.2 2010/09/29 17:10:51 -4.905 133.711 10.0 NEAR THE SOUTH COAST OF PAPUA, INDONESIA

reply to post by ressiv


In August of 1999 there was a 5.7 Mag. in this location. There were foreshock's that appear very similar to what we are seeing right now -

From 1999:

"According to the University of Nevada, Seismological Laboratory (UNRSL), in Reno, Nevada, the sequence began with a foreshock registering in the M3 range at 9:17 p.m. the night of July 31 which was followed by at least 12 foreshocks in the M2 range prior to the main M5.7 shock at 9:06 a.m., August 1. (See the UNRSL Press Release)"
Source

I wonder if all of these are foreshock's?

The depth are all over the place

3.3 2010/09/30 11:15:47 37.150N 117.395W 9.8 14 km ( 9 mi) NNW of Scottys Castle, CA
2.0 2010/09/30 10:36:36 37.151N 117.377W 9.2 14 km ( 9 mi) NNW of Scottys Castle, CA
1.3 2010/09/30 10:15:18 37.156N 117.370W 10.0 14 km ( 9 mi) N of Scottys Castle, CA
1.2 2010/09/30 10:14:43 37.157N 117.378W 10.7 14 km ( 9 mi) NNW of Scottys Castle, CA
1.5 2010/09/30 10:03:49 37.150N 117.387W 8.1 14 km ( 9 mi) NNW of Scottys Castle, CA
3.5 2010/09/30 09:57:56 37.142N 117.378W 8.7 13 km ( 8 mi) NNW of Scottys Castle, CA
1.5 2010/09/30 09:02:43 37.153N 117.372W 10.4 14 km ( 9 mi) NNW of Scottys Castle, CA
3.6 2010/09/30 07:49:47 37.138N 117.385W 7.9 12 km ( 8 mi) NNW of Scottys Castle, CA
2.4 2010/09/30 06:58:50 37.148N 117.364W 3.8 13 km ( 8 mi) N of Scottys Castle, CA
2.5 2010/09/30 06:23:12 37.156N 117.368W 5.6 14 km ( 9 mi) N of Scottys Castle, CA
2.3 2010/09/30 04:20:52 37.142N 117.388W 4.3 13 km ( 8 mi) NNW of Scottys Castle, CA
1.8 2010/09/30 04:06:08 37.138N 117.375W 3.9 12 km ( 8 mi) NNW of Scottys Castle, CA
2.0 2010/09/30 04:05:11 37.149N 117.375W 3.2 13 km ( 8 mi) NNW of Scottys Castle, CA
2.6 2010/09/30 03:34:57 37.141N 117.394W 7.5 13 km ( 8 mi) NNW of Scottys Castle, CA
2.5 2010/09/30 03:21:41 37.157N 117.388W 2.5 15 km ( 9 mi) NNW of Scottys Castle, CA
3.8 2010/09/30 03:17:01 37.164N 117.379W 11.3 15 km ( 9 mi) NNW of Scottys Castle, CA
1.9 2010/09/30 02:23:37 37.175N 117.381W 1.2 16 km (10 mi) NNW of Scottys Castle, CA
1.7 2010/09/30 02:22:51 37.158N 117.355W 5.8 14 km ( 9 mi) N of Scottys Castle, CA
3.6 2010/09/30 02:17:09 37.168N 117.374W 13.6 15 km (10 mi) N of Scottys Castle, CA
2.1 2010/09/30 02:10:57 37.172N 117.349W 4.5 16 km (10 mi) N of Scottys Castle, CA
3.1 2010/09/30 01:51:53 37.143N 117.388W 1.5 13 km ( 8 mi) NNW of Scottys Castle, CA
2.2 2010/09/30 01:49:56 37.171N 117.386W 0.9 16 km (10 mi) NNW of Scottys Castle, CA
2.1 2010/09/30 01:46:52 37.148N 117.390W 3.5 14 km ( 8 mi) NNW of Scottys Castle, CA
2.4 2010/09/30 01:43:19 37.154N 117.362W 5.6 14 km ( 9 mi) N of Scottys Castle, CA
3.3 2010/09/30 01:41:59 37.160N 117.375W 10.0 15 km ( 9 mi) NNW of Scottys Castle, CA
3.2 2010/09/30 01:38:48 37.167N 117.388W 0.0 16 km (10 mi) NNW of Scottys Castle, CA
4.4 2010/09/30 01:37:35 37.139N 117.380W 8.5 12 km ( 8 mi) NNW of Scottys Castle, CA

I just saw a thread regarding the Scotty's Castle, Ca. quakes, thats a lot of action. Any additional comments on these quakes, seems to have some folks concerned. Many thanks for all the work done here - I visit daily.

I know what aftershocks are but seldom see the word foreshocks - I assume that means smaller quakes before a larger one? Would you think this possible because there are so many of them in this instance? I noted the last one was a bit bigger.

Foreshocks only come into existance after a big main event has happened, if that makes sense.
Until the big one they are just a "Swarm"
If a big doesn't come they remain a "Swarm"
There is no way to know they are foreshocks ............ until the big one comes .....or not

[atsimg]http://files.abovetopsecret.com/images/member/c9a6bd38a137.gif[/atsimg]

reply to post by berkeleygal


I'm not sure I like living within your 'Scary Circle' LMAO