Quake Watch 2011

reply to post by PuterMan


Actually, to me that looks like they issued a calibration pulse just as the quake hit. Calibration pulses take many different forms, cause Lord knows I've seen hundreds at this point.

Phase data on that "6.5" suggest that was nowhere near a 6.5 or 6.3. The aftershock though suggests it might be. Hmm. Haven't seen the wave in GEE yet, but I am growing increasingly weary of their automatic systems, and even more leery of the seismologists reviewing them.

If you guys want another source for magnitude data, use Global CMT:
www.ldeo.columbia.edu...

They run behind some hours or days, but at least the data is pretty well gone over. I was told by a seismologist that when in question, they will usually turn to Global CMT for accuracy.

Also, the past few years for reference.

Year 2007

8.0-8.9 Magnitude: 3
7.0-7.9 Magnitude: 18

Largest Earthquake: 8.5 Magnitude - Southern Sumatra, Indonesia
Earthquake with the most casualties: August 15, Offshore Peru, M8.0

At least 514 people killed, 1,090 injured and more than 39,700 buildings damaged or destroyed.

Total Estimated Fatalities: 712

Year 2008

8.0-8.9 Magnitude: 0
7.0-7.9 Magnitude: 12

Largest Earthquake: 7.9 Magnitude - Eastern Sichuan, China
Earthquake with the most casualties: May 12, Eastern Sichuan China, M7.9

At least 69,195 people killed, 374,177 injured and 18,392 missing and presumed dead in the Chengdu-Lixian-Guangyuan area. More than 45.5 million people in 10 provinces and regions were affected. At least 15 million people were evacuated from their homes and more than 5 million were left homeless. An estimated 5.36 million buildings collapsed and more than 21 million buildings were damaged in Sichuan and in parts of Chongqing, Gansu, Hubei, Shaanxi and Yunnan.

Total Estimated Fatalities: 88011

Year 2009

With 5.0-6.9 Reference. Not as easy to compile for previous years.

8.0-8.9 Magnitude: 3
7.0-7.9 Magnitude: 16
6.0-6.9 Magnitude: 142
5.0–5.9 Magnitude: 1832

Largest Earthquake: 8.1 Magnitude - Samoa Islands region
Earthquake with the most casualties: Sept 30 - Southern Sumatra, Indonesia, M7.5

At least 1,117 people killed, 1,214 injured, 181,665 buildings destroyed or damaged and about 451,000 people displaced in the Padang- Pariaman area. Landslides disrupted power and communications in the area.

Total Estimated Fatalities: 1790

Year 2010

8.0-8.9 Magnitude: 1
7.0-7.9 Magnitude: 23
6.0-6.9 Magnitude: 153
5.0–5.9 Magnitude: 1924

Largest Earthquake: 8.8 Magnitude - Offshore Bio-Bio, Chile
Earthquake with the most casualties: Jan 12 - Haiti region, M7.0

According to official estimates, 316,000 people killed, 300,000 injured, 1.3 million displaced, 97,294 houses destroyed and 188,383 damaged in the Port-au-Prince area and in much of southern Haiti.

Total Estimated Fatalities: 320129

Year 2011

(As of October)

9.0-9.9 Magnitude: 1
8.0-8.9 Magnitude: 1?
7.0-7.9 Magnitude: 19
6.0-6.9 Magnitude: 165
5.0–5.9 Magnitude: 1980

Largest Earthquake: 9.0 Magnitude - Near East Coast of Honshu, Japan
Earthquake with the most casualties: March 11 - Japan Region, M9.0

According to official estimates, 15,828+ people killed, 5,942 injured, 3,760 missing.

Tsunami: Yes. Up to 40.5 m (133 ft) in Miyako, Iwate, Tōhoku

Total Estimated Fatalities: 19,889

reply to post by murkraz


Southern California now...earthquake.usgs.gov... coming in right now as a 4.1

Magnitude
4.1
Date-Time
Tuesday, November 01, 2011 at 15:38:22 UTC
Tuesday, November 01, 2011 at 08:38:22 AM at epicenter
Location
35.687°N, 117.621°W
Depth
7.1 km (4.4 miles)
Region
SOUTHERN CALIFORNIA
Distances
9 km (6 miles) NE (34°) from Ridgecrest, CA
18 km (11 miles) ENE (76°) from Inyokern, CA
23 km (14 miles) WSW (248°) from Searles Valley, CA
190 km (118 miles) NNE (17°) from Los Angeles Civic Center, CA
Location Uncertainty
horizontal +/- 0.3 km (0.2 miles); depth +/- 1.4 km (0.9 miles)
Parameters
Nph= 54, Dmin=12 km, Rmss=0.32 sec, Gp= 65°,
M-type=local magnitude (ML), Version=0
Source
California Integrated Seismic Net:
USGS Caltech CGS UCB UCSD UNR
Event ID
ci15071220

Southern California is shaking:

Magnitude
4.1
Date-Time
Tuesday, November 01, 2011 at 15:38:22 UTC
Tuesday, November 01, 2011 at 08:38:22 AM at epicenter
Location
35.687°N, 117.621°W
Depth
7.1 km (4.4 miles)
Region
SOUTHERN CALIFORNIA
Distances
9 km (6 miles) NE (34°) from Ridgecrest, CA
18 km (11 miles) ENE (76°) from Inyokern, CA
23 km (14 miles) WSW (248°) from Searles Valley, CA
190 km (118 miles) NNE (17°) from Los Angeles Civic Center, CA
Location Uncertainty
horizontal +/- 0.3 km (0.2 miles); depth +/- 1.4 km (0.9 miles)
Parameters
Nph= 54, Dmin=12 km, Rmss=0.32 sec, Gp= 65°,
M-type=local magnitude (ML), Version=0
Source
California Integrated Seismic Net:
USGS Caltech CGS UCB UCSD UNR
Event ID
ci15071220

Source: USGS

Followed by this one in the same spot:

Magnitude
1.9
Date-Time
Tuesday, November 01, 2011 at 15:44:48 UTC
Tuesday, November 01, 2011 at 08:44:48 AM at epicenter
Location
35.678°N, 117.614°W
Depth
10.1 km (6.3 miles)
Region
SOUTHERN CALIFORNIA
Distances
8 km (5 miles) NE (41°) from Ridgecrest, CA
18 km (11 miles) E (79°) from Inyokern, CA
23 km (14 miles) WSW (245°) from Searles Valley, CA
189 km (118 miles) NNE (18°) from Los Angeles Civic Center, CA
Location Uncertainty
horizontal +/- 0.3 km (0.2 miles); depth +/- 1.3 km (0.8 miles)
Parameters
Nph= 35, Dmin=12 km, Rmss=0.22 sec, Gp= 76°,
M-type=local magnitude (ML), Version=0
Source
California Integrated Seismic Net:
USGS Caltech CGS UCB UCSD UNR
Event ID
ci15071236

Source: USGS

Both are pretty shallow.

Be Well.

It was also real close to China Lake, Naval Air Weapons Station.

Could William Wallace be shouting "FREEDOM" in his grave?

2011/10/31 23:26:15.8 56.505 -4.315 2 1.8 3 KILLIN,STIRLING FELT KILLIN...
BGS

Rainbows
Jane

Originally posted by zenius
reply to post by westcoast

 

I hope PM gets a chance to listen. I saw it and thought it may be weather related. I haven't looked at the weather report yet though. STAR and Newbury Caldera don't look much better than Glacier Mnt. What do you think?

Re weather: expecting 3-6 inches of snow on Baker & Rainier over the next couple of days, but couldn't find any info on today.

edit on 1-11-2011 by zenius because: edit

I haven't read puterman's reply yet....wanted to first answer you about the weather. It is absolutely gorgeous out both yesterday and today. It was nice saturday, horrible Sunday (wind/rain) but yesterday and today.....blue skies and sunshine (but cold). So no, I do not believe weather to be a factor. I have a clear view in its direction! (can't see it, but the mountains that block it)

The thing is, with Rainier and Newberry, it isn't unusuall to see all those little micro quakes. Yes, they will intensify and you get a lot of ice quakes, but their presence is not out of the ordinary. I don't think I have ever seen that much activity at Glacier Peak. According to the PNSN site, there hasn't been even a micro quake since 2007!

reply to post by PuterMan


Wow! Thanks for the analysis. makes me a bit nervous though...as I have said, I have never seen this kind of action up there before. I don't like that.

NOW...add to that the nice two quakes up there in the past couple of hours, and my nervousness is increasing a bit. I certainly hope this is not a growing trend.




source

China is shaking again:

Magnitude
5.1
Date-Time
Tuesday, November 01, 2011 at 17:18:05 UTC
Wednesday, November 02, 2011 at 01:18:05 AM at epicenter
Time of Earthquake in other Time Zones
Location
34.513°N, 104.105°E
Depth
17 km (10.6 miles)
Region
GANSU, CHINA
Distances
148 km (91 miles) W of Tianshui, Gansu, China
173 km (107 miles) S of Lanzhou, Gansu, China
595 km (369 miles) NNW of Chongqing, Chongqing, China
1243 km (772 miles) WSW of BEIJING, Beijing, China
Location Uncertainty
horizontal +/- 21.3 km (13.2 miles); depth +/- 6.8 km (4.2 miles)
Parameters
NST= 61, Nph= 61, Dmin=>999 km, Rmss=0.87 sec, Gp=101°,
M-type=body wave magnitude (Mb), Version=5
Source
Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
Event ID
usb0006hkd

USGS

Be Well.

Wow! Thanks for the analysis. makes me a bit nervous though...as I have said, I have never seen this kind of action up there before. I don't like that. NOW...add to that the nice two quakes up there in the past couple of hours, and my nervousness is increasing a bit. I certainly hope this is not a growing trend.

reply to post by westcoast


A growing trend to?? suggest a possibility of?? Mt. Ranier blowing? I am sorry but I have been trying to figure out what is with this graph but I am lost.

reply to post by westcoast


Just going through reading the forum but had to comment to the pictures in the graft.


What does this mean for Northern California?

reply to post by TrueAmerican


Have any links regarding what you're referring to as a calibration pulse?

reply to post by westcoast


Hoping this is not the start of something in your neck of the woods. If it is, then you know what you need to do and are as ready as anybody can be. Hopefully it's nothing and things will settle down. As settled as our planet ever is anyway

Take care!

reply to post by MamaJ


Hi MamaJ,

The spikes on the graphs are earthquakes- the bigger the spike, the bigger the earthquake. Where the lines get "thick" sometimes represents magma movement - but it can also be wind/rain/train/chainsaw/SNOW PLOW ;-) - anything that is constant and moves or vibrates the instruments. We had a heck of time last year and the year before when we were watching Yellowstone - we got to know the park pretty good like when they were blasting to the East, time of day they opened and closed. employee break time etc...

Originally posted by Anmarie96
reply to post by MamaJ

 

Hi MamaJ,

The spikes on the graphs are earthquakes- the bigger the spike, the bigger the earthquake. Where the lines get "thick" sometimes represents magma movement - but it can also be wind/rain/train/chainsaw/SNOW PLOW ;-) - anything that is constant and moves or vibrates the instruments. We had a heck of time last year and the year before when we were watching Yellowstone - we got to know the park pretty good like when they were blasting to the East, time of day they opened and closed. employee break time etc...

edit on 1-11-2011 by Anmarie96 because: (no reason given)

Oh ok....thank you so much for the insight. I was beginning to question my sanity.

I am like JC....hopefully the west coast will simmer down because now that Southern California has had a 4.1 I am left to wonder but am also hopeful!!

reply to post by TrueAmerican

Hi TA,

thank you for the comments re GPW, thanks also to Puterman for providing those graphics that indicate it's not a "natural" event being shown on the seismo at that time.

I dug back through the last few days and found the following:
year day 299 shows a similar trace at 12:35:05
year day 300 shows a similar trace at 06:35:05
year day 301 shows a similar trace at 00:35:05 and 18:35:05
year day 302 shows a similar trace at 12:35:05
year day 303 shows a similar trace at 06:35:00
year day 304 shows a similar trace at 00:35:00 and 18:35:00
year day 305 (today) shows a similar trace at 12:35. (or a few seconds before.)

There is a clear 18-hour interval and (though I'm happy to be corrected) it seems likely that this trace is due to calibration.

Mike

reply to post by JustMike


Thanks Mike...I agree that those particular spikes are definitely NOT seismic in nature. GPW has always been 'glitchy'....and I just ignore those anomalies. What I don't like are the micro quakes. NOT normal. I'm sure you noticed when you went back and looked, that there tends to be a lot of wierd interference, etc. but not micro quakes.

The thing with Glacier Peak, is that it is easy to rule out a lot of the 'normal' stuff. It is very isolated. No roads, no trains, no nothin. There isn't even a real access road. This is why most people living right next to it don't even know it's there. It is tucked away in the mountain range, out of sight, out of mind.

MamaJ and others....this really doesn't mean much of anything to anyone other than those of us living near it. (or at least in Washington) I care more about it because my house sits on it's last lahar...which flowed all the way to the sound. I am not saying that I think it is going to erupt (otherwise, I wouldn't be sitting here calmly typing ) Just that this is activity that is not normal, so should be watched.

MamaJ and others....this really doesn't mean much of anything to anyone other than those of us living near it. (or at least in Washington) I care more about it because my house sits on it's last lahar...which flowed all the way to the sound. I am not saying that I think it is going to erupt (otherwise, I wouldn't be sitting here calmly typing ) Just that this is activity that is not normal, so should be watched.

reply to post by westcoast


Well whatever the case...I am right beside you. If you are concerned....so am I. My brother lives in San Jose and so anything to do with the West Coast is of interest to me.

If it does erupt.....what will happen? I would look it up but I am on the way out the door. Be back soon though to see what ya say.

reply to post by westcoast

Isolated is right!

Here's a linky to pictures taken when GPW was installed back on Sept 10, 2001. Looks really beautiful there...

As you say, not much chance of a lot of cultural noise there from people tramping around, but I bet it gets pretty windy sometimes, even when it might be farily calm down in the valleys.

Okay I have to go and get some more work done. Catch you all later, folks.

Mike

reply to post by JustMike


Thansk for that link Mike... I was too lazy. As it shows, it appears they were flown in by helicopter to install it. I know I read somewhere that there isn't even an access road. I am sure that a lot of the background noise we see up there is from the wind. It IS beautiful! (I think that's Baker in the background in one shot)

HERE is the PNSN website for it...not a whole lot of info there. You have to go digging. it is not very well-known.

Here's the WIKI link.

Glacier Peak (known in the Sauk Indian dialect of Lushootseed as "Tda-ko-buh-ba" or "Takobia" [5]) is the most isolated of the five major stratovolcanoes (composite volcanoes) of the Cascade Volcanic Arc in Washington. Located in the Glacier Peak Wilderness, the volcano is not easily discernible from any heavily populated area; as a result the volcano is largely understudied and not as much is known about it compared to other volcanoes in the area. Since the most recent ice age, it has produced some of largest and most explosive eruptions in the state. The mountain has erupted explosively during each of five episodes in the past 3,000 years. The volcano formed during the Pleistocene epoch, about 1 million years ago. Glacier Peak is one of the most active of Washington's volcanoes. When continental ice sheets retreated from the region, Glacier Peak began to erupt regularly. It has erupted repeatedly during at least six periods; two of these incidents have been among the largest in Washington.

So, as you can see...it is not one we should be ignoring.

To all of you experts :
Drilling Ship to Probe Fault Zone that Caused Fukushima Quake

After being tossed about and damaged by the tsunami that devastated northeastern Japan on March 11, Japan's drilling ship the Chikyu has been given an especially fitting assignment: to drill into the fault zone and take temperature measurements near the epicentre of the magnitude-9.0 Tohoku earthquake that caused the tsunami. It will be the first time that researchers have drilled into an underwater fault soon after a quake. The aim of the exercise is to solve a decades-old mystery about the part that friction plays in such an event. This should help scientists to understand why some faults are more likely than others to cause tsunamis — in this case, one that ultimately claimed more than 23,000 lives.

Couldn't this be dangerous??