Quake Watch 2010

Originally posted by muzzy
Just had a decent quake here on the Kapiti Coast, NZ quite a sharp jolt, house shook like crazy, rumbled a bit first.
Nothing on Geonet yet, felt like a mid Mag 4 or a big 3 if close by.
I reckon in the Tararua Mts to the east.

edit: Here it is

Reference Number 3409613/G
Universal Time November 19 2010 at 7:31
NZ Daylight Time Friday, November 19 2010 at 8:31 pm
Latitude, Longitude 41.09°S, 175.10°E
Focal Depth 29.7 km
Richter magnitude 4.162
Region Wellington
Location
* Birchville, Upper Hutt ( at the confluence of Hutt and Akatarawa Rivers)
* 20 km west of Featherston
* 20 km south-east of Paraparaumu
* 40 km north-east of Wellington
www.geonet.org.nz...

368 Felt reports at the moment, our suburb of Raumati Beach 20km away has the most so far

I was right about the location

, it had that "rocky" feel about it, different feel to the ones that come from off shore to the west

When I say "rocky" I don't mean like rocking back and forth, but like rocks grinding against each other or smashing/ breaking apart, real harsh sort of jolting.
The quakes that come in towards us from under the sea to the west have more of a "liquidy" feel to them, perhaps its the alluvial plain that we are on, so the ground is liquifying above the base rock.

I know this is not very technically well described but thats how it feels.

I suspect the ones from the East under the mountains are uplifting of the mountains or folding.

Region: NORTHERN SUMATRA, INDONESIA
Geographic coordinates: 1.135N, 100.115E
Magnitude: 5.6 M
Depth: 213 km
Universal Time (UTC): 19 Nov 2010 21:55:15
Time near the Epicenter: 20 Nov 2010 04:55:15
Local standard time in your area: 19 Nov 2010 16:55:15

Location with respect to nearby cities:
159 km (99 miles) ESE (113 degrees) of Sibolga, Sumatra, Indonesia
163 km (101 miles) WNW (294 degrees) of Pekanbaru, Sumatra, Indonesia
233 km (145 miles) N (354 degrees) of Padang, Sumatra, Indonesia
284 km (176 miles) SW (218 degrees) of KUALA LUMPUR, Malaysia


ADDITIONAL EARTHQUAKE PARAMETERS
________________________________
event ID : US c0000dhh


Strange and new - this one is inland

reply to post by Anmarie96


It does seem strange...sort of in the middle there. Mind you it's only a couple of hundred k's from Toba. Are there any faults that lie through that area I wonder?

reply to post by zenius


That would be the Sumatra Fault - also known as the Great Sumatra Fault Here and Here

reply to post by Anmarie96


Thanks Annmarie. For some reason I thought the faults lay mainly along the south west of the islands. That link was very insightful. Between you a Puterman I can see my sleep time reducing this weekend.

I haven't been watching long but I am hooked on the RSOE, saw this little tremor inside Yellowstone just thought I would see if it has been reported here. dont know if its rare since I have been watching it seems most quakes are outside of Yellowstone.

I am really enjoying the fragile earth forum.

hisz.rsoe.hu...

Magnitude 5.2
Date-Time Saturday, November 20, 2010 at 02:09:34 UTC
Friday, November 19, 2010 at 11:09:34 PM at epicenter

Location 37.955°S, 73.640°W
Depth 30.5 km (19.0 miles)
Region OFFSHORE BIO-BIO, CHILE
Distances 40 km (25 miles) S of Lebu, Bio-Bio, Chile
125 km (80 miles) NW of Temuco, Araucania, Chile
125 km (80 miles) WSW of Los Angeles, Bio-Bio, Chile
570 km (350 miles) SSW of SANTIAGO, Region Metropolitana, Chile

Location Uncertainty horizontal +/- 25.4 km (15.8 miles); depth +/- 3.1 km (1.9 miles)
Parameters NST= 87, Nph= 87, Dmin=407.4 km, Rmss=0.97 sec, Gp=133°,
M-type=body wave magnitude (Mb), Version=7
Source USGS NEIC (WDCS-D)


Event ID usc0000dm5

I am amazed, always, at how these deep quakes just shake the whole planet. I have been using Wilber lately, from Iris Seismic Monitor. I always check the closest station, then the furthest, then somewhere in the middle.

www.iris.edu...

www.iris.edu...

Does anyone have info on 4 Yellowstone quakes today that were later deleted? Wondering if its normal for 4 to be deleted on one day - same location. Faulty equipment maybe?

reply to post by crazydaisy


Sorry no info but yes in Yellowstone that is not uncommon. It has the highest incidence of deletions in the world!

@All

If you want to debunk "OMG the whole world is having earthquakes all at once" you could use this page

Basically I have transferred two posts combined to create a little tutorial.

Originally posted by PuterMan
reply to post by crazydaisy

 

@All

If you want to debunk "OMG the whole world is having earthquakes all at once" you could use this page

Basically I have transferred two posts combined to create a little tutorial.

well explained, and a test at the end to boot

It took me about a month to figure out how all that works on my own

reply to post by crazydaisy


Hey Crazydaisy, have you tried the Yellowstone link?

* This event has been reviewed by a seismologist.

Magnitude 5.2
Date-Time

* Saturday, November 20, 2010 at 10:14:03 UTC
* Saturday, November 20, 2010 at 12:14:03 AM at epicenter

Location 51.772°N, 176.795°W
Depth 64.6 km (40.1 miles)
Region ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA
Distances

* 16 km (10 miles) SW (220°) from Adak, AK
* 183 km (114 miles) WSW (256°) from Atka, AK
* 1941 km (1206 miles) WSW (250°) from Anchorage, AK

Location Uncertainty horizontal +/- 31.8 km (19.8 miles); depth +/- 1.7 km (1.1 miles)
Parameters NST=178, Nph=180, Dmin=62.3 km, Rmss=0.8 sec, Gp=173°,
M-type=body wave magnitude (Mb), Version=7
Source

* U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver

Event ID usc0000dpy


* This event has been reviewed by a seismologist.

Magnitude 4.2
Date-Time

* Saturday, November 20, 2010 at 19:06:35 UTC
* Saturday, November 20, 2010 at 01:06:35 PM at epicenter

Location 35.319°N, 92.302°W
Depth 4.6 km (2.9 miles)
Region ARKANSAS, USA
Distances
* 3 km (2 miles) E (101°) from Guy, AR
* 10 km (6 miles) SW (228°) from Quitman, AR
* 11 km (7 miles) E (89°) from Twin Groves, AR
* 65 km (40 miles) N (2°) from Little Rock, AR
* 411 km (255 miles) SSW (207°) from St. Louis, MO
M-type="Nuttli" surface wave magnitude (mbLg), Version=B
Source
* Cooperative New Madrid Seismic Network
Event ID nm112010q
earthquake.usgs.gov...

not much info yet, not even any felt reports

original source here
folkworm.ceri.memphis.edu...

Leachville, AR graph

40 minutes ago

Reference Number 3410324
Universal Time November 19 2010 at 19:52:22
NZ Daylight Time Saturday, November 20 2010 at 8:52:22 am
Latitude, Longitude 43.59°S, 172.36°E
Focal Depth 149km
Richter magnitude 4.837ML
Region Waikato, New Zealand
Location
N of Lake Ohakuri

Quite deep and not reported on Geonet yet, but quite defined on the graphs
Urewera-URZ
Mangatainoka - MRZ

Indonesia had 4.6 mag 163.77km and previously 5 mag and 80km. Pretty deep..

Oops I had the wrong Lat Long on this one, can't edit it "You have exceeded the maximum window of 4 hours allowed to edit your post" whats up with that BS?

Reference Number 3410324
Universal Time November 19 2010 at 19:52:22
NZ Daylight Time Saturday, November 20 2010 at 8:52:22 am
Latitude, Longitude -38.3567, 176.11157
Focal Depth 149km
Richter magnitude 4.837ML
Region Waikato, New Zealand
Location N of Lake Ohakuri

Magnitude 4.2 Date-Time * Saturday, November 20, 2010 at 19:06:35 UTC * Saturday, November 20, 2010 at 01:06:35 PM at epicenter Location 35.319°N, 92.302°W Depth 4.6 km (2.9 miles) Region ARKANSAS, USA Distances * 3 km (2 miles) E (101°) from Guy, AR * 10 km (6 miles) SW (228°) from Quitman, AR * 11 km (7 miles) E (89°) from Twin Groves, AR * 65 km (40 miles) N (2°) from Little Rock, AR * 411 km (255 miles) SSW (207°) from St. Louis, MO M-type="Nuttli" surface wave magnitude (mbLg), Version=B Source * Cooperative New Madrid Seismic Network Event ID nm112010q earthquake.usgs.gov... not much info yet, not even any felt reports original source here folkworm.ceri.memphis.edu... Leachville, AR graph

"Downgraded" to 3.9Mw now
The original magnitude was a bit dodgy anyway, what the heck is M-type="Nuttli" surface wave magnitude (mbLg) ?
At least they have some data now, 152 Felt reports,


See why you need the editing to last more than 4 hrs for us guys, what a mess

reply to post by zenius



I've been to the Yellowstone link but for some reason didn't think if this time. Thanks.

Puterman thanks for the info on Yellowstone! Wow!

Arkansas, I see some did feel them even tho downgraded. Madrid fault - getting closer to home.