Quake Watch 2010

reply to post by Roald

Hmmm... Possible hydrothermal submarine activity... That could be nasty. I can appreciate your concern. Do you have any historic data of events that you can share with us? Would certainly appreciate it.

BTW I have sent you a U2U.

reply to post by PuterMan

Nice pickup! I only just noticed myself while I was checking the listings on EMSC. (They list the first as a 4.9 and the second as a 5.0 but as we know, minor deviations between different agencies' assessments are not unusual.)

Fortunately they are not big events as things go but their close proximity to one another is interesting.

Mike

Originally posted by PuterMan
reply to post by Casing

 

Did you miss this one?

Magnitude 5.0
Date-Time

* Saturday, March 06, 2010 at 17:23:12 UTC
* Sunday, March 07, 2010 at 03:23:12 AM at epicenter
* Time of Earthquake in other Time Zones

Location 14.639°N, 144.220°E
Depth 10 km (6.2 miles) set by location program
Region ROTA REGION, NORTHERN MARIANA ISLANDS
Distances 120 km (75 miles) WNW of Rota, Northern Mariana Islands
140 km (90 miles) NNW of HAGATNA, Guam
170 km (105 miles) WSW of SAIPAN, Northern Mariana Islands
245 km (150 miles) SW of Anatahan, Northern Mariana Islands
Location Uncertainty horizontal +/- 7.4 km (4.6 miles); depth fixed by location program
Parameters NST= 41, Nph= 41, Dmin=136.1 km, Rmss=0.69 sec, Gp=104°,
M-type=body wave magnitude (Mb), Version=R
Source

* USGS NEIC (WDCS-D)

Event ID us2010tmbs

In almost exactly the same place.

Wow , I did! Its almost right on top of it... Thanks for catching it

Pretty sad when I have the screen zoomed to 150% and still miss it, bad day for my eyes.

Casing

Originally posted by Casing
Pretty sad when I have the screen zoomed to 150% and still miss it, bad day for my eyes.

Casing

Just so you'll feel better, I have the same problem, which is why I check lists pretty often and don't just rely on maps or even email alerts. But gotta hand it to PuterMan -- he caught this before any of us! (But then he's such a young feller and they usually have better eyesight. )

reply to post by JustMike


Using the classification Rota as per USGS I get the followig for the last 365 days

Date/Time UTC,Latitude,Longitude,Magnitude,No Of Rept Stns,Depth(Km),Location
06/03/2010 17:53:47,14.6886,144.2619,5.00,36,10.00,Rota region
06/03/2010 17:23:12,14.6395,144.2203,5.00,41,10.00,Rota region
19/12/2009 11:14:28,14.0190,146.4056,5.00,98,55.00,Rota region
05/07/2009 23:35:39,14.8733,144.5766,4.90,73,13.70,Rota region
19/06/2009 15:06:25,14.0572,145.1387,5.50,166,113.50,Rota region
23/05/2009 00:40:06,14.0346,145.2062,5.00,122,119.10,Rota region
19/04/2009 08:54:46,14.8041,144.4984,4.70,28,10.00,Rota region
19/04/2009 08:45:48,14.8143,144.5041,4.70,26,10.00,Rota region
17/04/2009 11:50:35,14.7843,144.4718,5.00,15,10.00,Rota region
17/04/2009 11:19:26,14.7965,144.5013,4.90,15,10.00,Rota region
17/04/2009 07:04:17,14.8142,144.5815,4.70,30,10.00,Rota region

Originally posted by JustMike
But then he's such a young feller and they usually have better eyesight.

If only

[edit on 6/3/2010 by PuterMan]

reply to post by PuterMan

Thank you for posting that data for us. Very revealing and also somewhat reassuring. These kinds of multiple events have occurred there before and apparently without any major effects in the immediate area.


Edit to add:

Re: eyesight. It must be those lovely Colleens, then. Or the Tullamore Dew. Something is helping you to keep your eyes open.

I tried using slivovitz -- the local home-made plum brandy. 70% alcohol. I'll -- I'll report on... I'll report errrm report on the resultssss laterrrrrr....

[edit on 6/3/10 by JustMike]

reply to post by JustMike
Not sure what data to give you, but we had an M 7.5 in that area April 05, 1990, M 8.0 August 08, 1993, M 7.0 October 12, 2001, M 7.1 April 26, 2002, M 6.8, May 09, 2008 in or close to the Lapulapu Ridge close to the Mariana Islands.

Edited to ask what U2U is?

[edit on 6/3/2010 by Roald]

Edited again. "Sjete" as they say in the Philippines. PM.
How stupid can I be. I'll read now. have plenty in the in box.
Sorry guys.

[edit on 6/3/2010 by Roald]

When it comes to Mindanao, then we had a M 7.4, December 02, 1972, M 6.8, November 07, 1976, M 7.9, August 16, 1976, M 6.9, December 12, 1978, M 6.9, June 14, 1978, M 6.8, June 18, 1980, M 7.5, May 17, 1992, M 6.9, March 11, 1997, M 6.8, September 02, 1998, M 6.8, January 01, 2001, M 7.5, January 01, 2001, M 7.5, March 05, 2002, M 6.9, May 26, 2003

When it comes to Samar, then we had a M 7.2, October 31, 1975, M 6.9, April 21, 1995, M 7.2, April 21, 1995, M 7.3, April 21, 1995, M 7.0, May 05, 1995, M 7.1, June 11, 1996,

Just so I have mention the "BIG" one in that area.

[edit on 6/3/2010 by Roald]

Originally posted by JustMike
Just so you'll feel better, I have the same problem, which is why I check lists pretty often and don't just rely on maps or even email alerts. But gotta hand it to PuterMan -- he caught this before any of us! (But then he's such a young feller and they usually have better eyesight.

)

Thanks JustMike

As my dad would say, that PuterMan is pretty good with that computerese (computer speak) and is a "Keeper"

Casing

reply to post by Roald

That's some pretty substantial events... Hopefully things will stay quiet for a while.

A U2U is the ATS version of what is called a PM (personal message) virtually everywhere else. In other words I've sent you a message. Scroll up to the top of your browser and you'll see a yellow U2U! notice. Click on and it takes you to it.

Regards,

Mike

reply to post by Roald


There are 4 undersea volcanoes close to those quakes

I hope it is OK to reproduce these here since none to the links to the material worked, but they are all Smithsonian Institute data.

Seamount X
Mariana Islands (Central Pacific)

Volcano types:
Submarine volcano
Caldera Summit Elev: -1230 m
Latitude: 13.25°N
Longitude: 144.02°E
Hydrothermal activity was detected during a 2003 NOAA expedition at a submarine volcano about 70 km WSW of Guam. The summit of the volcano, referred to as Seamount X, lies 1230 m below the sea surface. Diffuse sites of thermal venting colonized by shrimps, crabs, and scaleworms were detected near the summit during a 2006 NOAA expedition, and thick deposits of sulfur flows originating from the hydrothermal vent were observed that were covered with thousands of squat lobsters. Basaltic rocks were recovered along with sulfur samples. The summit of the volcano is cut by an elongated caldera.


Forecast Seamount
Mariana Is

Volcano types:
Submarine volcano Latitude: 13.40°N
Longitude: 143.92°E
Forecast Seamount lies about 70 km west of the southern tip of Guam and about 19 km NW of Seamount X. Hydrothermal fluid temperatures up to 200 degrees C, one of the highest temperature vent systems known in the Mariana arc, were measured during a 2006 NOAA expedition. Vent community species that occur on Forecast Seamount include shrimp, snails, limpets, crabs, sulfide worms, and scale worms, and differ from those further to the north in the Marianas arc.


NW Rota-1
Mariana Islands (Central Pacific)

Volcano types:
Submarine volcano Summit Elev: -517 m
Latitude: 14.601°N
Longitude: 144.775°E
A submarine volcano detected during a 2003 NOAA bathymetric survey of the Mariana Island arc was found to be hydrothermally active and named NW Rota-1. The basaltic to basaltic-andesite seamount rises to within 517 m of the sea surface SW of Esmeralda Bank and lies 64 km NW of Rota Island and about 100 km north of Guam. When Northwest Rota-1 was revisited in 2004, a minor submarine eruption from a vent named Brimstone Pit on the upper south flank about 40 m below the summit intermittently ejected a plume several hundred meters high containing ash, rock particles, and molten sulfur droplets that adhered to the surface of the remotely operated submersible vehicle. The active vent was funnel-shaped, about 20 m wide and 12 m deep. NW Rota-1 is a large submarine volcano with prominent structural lineaments about a kilometer apart cutting across the summit of the edifice and down the NE and SW flanks.

Esmeralda Bank
Mariana Is

Volcano types:
Submarine volcano
Caldera Summit Elev: -43 m
Latitude: 15.00°N
Longitude: 145.25°E
Esmeralda Bank is a massive submarine volcano with three summit cones oriented along a N-S line. Their summits are from 43 to 140 m beneath the sea surface. The highest, middle peak contains a 3-km-wide caldera open to the west and several parasitic cones. Frequent sulfur boils and water discoloration have been observed, which have variously been attributed to eruptive events or solfataric activity.

reply to post by PuterMan

The closest one is NW Rota-1. Just 57km. from the quake area.
Seamount X is around 156km away. Forecast Seamount is about 142km away and Esmeralda Bank is around 110km from the quake area.

I did a search in ANSS based on the following parameters

Your search parameters are:
catalog=ANSS
start_time=1950/01/01,00:00:00
end_time=2010/03/06,19:53:03
minimum_magnitude=4
maximum_magnitude=10
event_type=E
delta=0 km to 200 km from (14.6886,144.2619)

This brought up 1081 quakes

Below is a chart of 5.5+ magnitude from that list.

[atsimg]http://files.abovetopsecret.com/images/member/eef244cfcaba.png[/atsimg]

reply to post by Roald


Thanks for that info. At least that validates my choice of 200 Km!

Again we have stronger strange goings on in the lake for about an hour beginning at 19:00 UTC / 11:30 am local time - I like the thawing theory but, I don't think that's it. www.iris.edu...

reply to post by PuterMan


Hi sounds interesting and I hear a double hump, I don't see
anything at that time however. Are you referring to the one at
15:50:30 on YLT? I believe the source of this is in Yellowstone.
Check out B206 at that time. The amplitude is huge, EHZ being
87000+ COUNTS and EH1 237,000 COUNTS. I have the BUD file
of B206 and don't really see the double bump there.

By the way I now periodically check G21A, H21A, K21A, I23A,
and J23A for mine blast caused quakes so I can ignore
them.

Also of interest today at 12:43:30 GMT are the two fairly good
sized quakes closest to B207 plus some smaller activity around
that time. Looks like the swarm is winding down but not quite
finished! Maybe this is the way it always is around there, I have
not checked old history yet.

Another question regarding which List to use, B206 and YUF are
both in Yellowstone, so I thought that is where I should post it.
I am relatively new to participating in a discussion group,
although I have done a lot of reading. I am really learning a
great deal here and am very interested in all kinds of details.

I want to get your QuakeData program when you think it is ready.

Thanks

reply to post by Anmarie96

B208 really looks strange, I wonder what it all sounds like? Stuff
just turns on and then goes off suddenly. Then around the time
of the three larger quakes at 22:31:50 GMT there was a lot of
smaller quake activity which showed up strongest on YLT but was
very apparent on B207 and B205 as well as YPM. I wonder what
is going on.

Originally posted by EngTech36
reply to post by PuterMan

 

Are you referring to the one at 15:50:30 on YLT?

Yes I think that was one of the ones. I find it difficult to tie the wave file back to a time but I am working on it.

The amplitude is huge, EHZ being 87000+ COUNTS and EH1 237,000 COUNTS.

Mmm no idea what you are saying there. I often load in excess of 8,000,000 data items but it does make QuakeData grind a bit!

Another question regarding which List to use, B206 and YUF are
both in Yellowstone, so I thought that is where I should post it.

Yes, sorry I am confusing you by posting the answer here but I had al ready done it when I saw the question on the YS thread. If no one else has any objections, I personally would suggest that Yellowstone related webicorders should be posted on the Yellowstone thread, and everything else here.

I want to get your QuakeData program when you think it is ready.

Tomorrow (7th)

reply to post by EngTech36


Moved this reply to the Yellowstone thread. It is now here

[edit on 6/3/2010 by PuterMan]

Magnitude 3.7 - CENTRAL CALIFORNIA
Date-Time

* Sunday, March 07, 2010 at 06:14:12 UTC
* Saturday, March 06, 2010 at 10:14:12 PM at epicenter
* Time of Earthquake in other Time Zones

Location 36.813°N, 121.538°W
Depth 5.4 km (3.4 miles)
Region CENTRAL CALIFORNIA
Distances

* 4 km (2 miles) S (181°) from San Juan Bautista, CA
* 12 km (7 miles) E (83°) from Prunedale, CA
* 12 km (8 miles) SE (132°) from Aromas, CA
* 13 km (8 miles) WSW (253°) from Hollister, CA
* 67 km (41 miles) SSE (152°) from San Jose City Hall, CA

Location Uncertainty horizontal +/- 0.2 km (0.1 miles); depth +/- 0.5 km (0.3 miles)
Parameters Nph= 68, Dmin=4 km, Rmss=0.17 sec, Gp= 50°,
M-type=regional moment magnitude (Mw), Version=4
Source

* California Integrated Seismic Net:
* USGS Caltech CGS UCB UCSD UNR

Event ID nc71359775

Now, this one is right in the Tectonic Boundary.

Another one just 100+ meters away.


Magnitude 2.9 - CENTRAL CALIFORNIA
Date-Time

* Sunday, March 07, 2010 at 07:10:07 UTC
* Saturday, March 06, 2010 at 11:10:07 PM at epicenter

Location 36.814°N, 121.538°W
Depth 5 km (3.1 miles)
Region CENTRAL CALIFORNIA
Distances

* 3 km (2 miles) S (181°) from San Juan Bautista, CA
* 12 km (7 miles) E (82°) from Prunedale, CA
* 12 km (8 miles) SE (131°) from Aromas, CA
* 13 km (8 miles) WSW (253°) from Hollister, CA
* 66 km (41 miles) SSE (152°) from San Jose City Hall, CA

Location Uncertainty horizontal +/- 0.2 km (0.1 miles); depth +/- 0.4 km (0.2 miles)
Parameters Nph= 70, Dmin=4 km, Rmss=0.16 sec, Gp= 36°,
M-type=duration magnitude (Md), Version=1
Source

* California Integrated Seismic Net:
* USGS Caltech CGS UCB UCSD UNR

Event ID nc71359785

Magnitude 5.9 - SOUTHERN EAST PACIFIC RISE
2010 March 07 07:05:24 UTC

Earthquake Details

Magnitude
5.9
Date-Time
Sunday, March 07, 2010 at 07:05:24 UTC
Saturday, March 06, 2010 at 11:05:24 PM at epicenter
Time of Earthquake in other Time Zones
Location
16.073°S, 115.245°W
Depth
10 km (6.2 miles) set by location program
Region
SOUTHERN EAST PACIFIC RISE
Distances
4140 km (2570 miles) W of LIMA, Peru

Magnitude 5.1 - STATE OF YAP, FED. STATES OF MICRONESIA
2010 March 07 07:51:11 UTC

Location
11.268°N, 140.673°E
Depth
79.6 km (49.5 miles)
Region
STATE OF YAP, FED. STATES OF MICRONESIA
Distances
340 km (210 miles) NE of Yap, Micronesia
505 km (315 miles) WSW of HAGATNA, Guam
585 km (365 miles) WSW of Rota, Northern Mariana Islands
1980 km (1230 miles) WNW of PALIKIR, Pohnpei, Micronesia