Quake Watch 2011

reply to post by muzzy


Thanks for that Muzzy! Every bit of info helps!

Check this out! www.abovetopsecret.com...&addstar=1&on=12392519#pid12392519

3 quakes in Cali in the past 3 minutes...also Alaska and Pakistan...all within 30 minutes

WOW! Hope there is not more of this around the corner!!!!


Magnitude
6.8 (Preliminary magnitude — update expected within 15 minutes)
Date-Time
Thursday, September 22, 2011 at 23:07:04 UTC
Friday, September 23, 2011 at 11:07:04 AM at epicenter
Location
14.967°S, 174.824°W
Depth
41.1 km (25.5 miles) set by location program
Region
SAMOA ISLANDS REGION
Distances
356 km (221 miles) WSW (248°) from APIA, Samoa
419 km (260 miles) NNW (348°) from Neiafu, Tonga
450 km (280 miles) W (260°) from PAGO PAGO, American Samoa
2709 km (1684 miles) W (272°) from PAPEETE, Tahiti, French Polynesia
Location Uncertainty
Error estimate not available
Parameters
NST= 8, Nph=0, Dmin=0 km, Rmss=0 sec, Gp=112°,
M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=B
Source
NOAA Pacific Tsunami Warning Center
Event ID
pt11265001

Originally posted by muzzy
Staying on the subject of hearing them coming, this from the Sikkim/Nepal 6.9

Witness location : Siliguri (India) (127 km S from epicenter)
IT WAS HORRIABLE IT WAS MY IST HIGH ALTTITUDE 6.9 EARTH QUAKE THERE WAS A RORARRING SOUND BEFORE AND WHEN IT START AFTER THAT MY BUILDING IS VIBRATING HIGHLY WE ALL ARE FRIGHTENED

underline mine
www.emsc-csem.org...

muzzy, glad to hear you're ok as well.

I think what may be happening is that the P-waves are what create the "roaring sound," and then the S-waves cause the "vibration."

In other words, the P-waves of the quake are already upon them causing the sound. Considering the sound source is infrasonic, and we can't hear the fundamental, what they are "hearing" are only the frequencies above 20 Hz caused when the waves physically move the earth.

And then come the S-waves wreaking havoc. For people really close to epicenter in a shallow depth quake, it all will seem to happen at once, because there is no time for separation of faster P waves from slower S waves.

Just my interpretation, and I am gladly corrected if I am not understanding that right.

Welp.....USGS has now changed the location to Tonga and the Magnitude....it has now been dropped to a 6.2!!

That was quick! They are on top of it.... :lol

reply to post by MamaJ


On top of the lies are USGS. Our quakes back in June here were recorded as 5 pointers. But the largest was 6.3.
quakes.globalincidentmap.com... Live earthquakes still say 6.8

Now Missouri

Magnitude 3.6
Date-Time

Thursday, September 22, 2011 at 23:32:09 UTC
Thursday, September 22, 2011 at 06:32:09 PM at epicenter

Location 36.835°N, 90.766°W
Depth 8.6 km (5.3 miles) (poorly constrained)
Region SOUTHEASTERN MISSOURI
Distances

5 km (3 miles) E (83°) from Grandin, MO
11 km (7 miles) S (189°) from Ellsinore, MO
24 km (15 miles) NNE (12°) from Doniphan, MO
33 km (21 miles) WNW (285°) from Poplar Bluff, MO
204 km (127 miles) NNW (340°) from Memphis, TN
205 km (127 miles) SSW (193°) from St. Louis, MO

Location Uncertainty horizontal +/- 8.9 km (5.5 miles); depth +/- 12.5 km (7.8 miles)
Parameters NST= 52, Nph= 71, Dmin=31.2 km, Rmss=1.18 sec, Gp= 25°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=6
Source

Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)

reply to post by SusanFrey


Yeah....I just saw that.....now that one....is waaaaay too close to home. I am in Tennessee and don't want them crackin in my neck of the woods.

reply to post by MamaJ


Tell me about it I"m north of Little Rock

So Missouri now, I don't recall
ever seeing so many quakes
in various US states.

reply to post by TrueAmerican

In other words, the P-waves of the quake are already upon them causing the sound. Considering the sound source is infrasonic, and we can't hear the fundamental, what they are "hearing" are only the frequencies above 20 Hz caused when the waves physically move the earth.

Which is almost what I said - that the sound is incidentals off the main carrier because of deflection.

Makes sense really the speed these things travel.

This one got radio coverage in Seattle.

Preliminary Earthquake Report
Magnitude 3.2 SEATTLE-TACOMA AREA, WASHINGTON
2011 September 22 20:22:06 UTC
Magnitude 3.2
Date-Time 2011 09 22 20:22:06 UTC
Time of Earthquake in other Time Zones
Location 47.45N 122.08W
Depth 24.5 kilometers
Region SEATTLE-TACOMA AREA, WASHINGTON
Distances
26 km (16 miles) SE of Seattle, Washington
28 km (17 miles) NNW of Enumclaw, Washington
35 km (21 miles) NE of Tacoma, Washington
77 km (47 miles) NE of OLYMPIA, Washington
Location Quality Error estimate not available
Location Quality
Parameters Nst=59, Nph=59, Dmin=12 km, Rmss=0.26 sec, Gp=21.6 degrees
Source Pacific Northwest Seismograph Network
Event ID uw09222022

reply to post by StealthyKat


GOBSMACKED!!!

That sounds exactly like the sounds on many of the tapes. This is not the earthquake sounds but it does explain many of them. Add to that weird bouncing of sound of the underside of clouds or even just the junctions of different air temperature layers and I think that is it.

I could only give him one star

reply to post by PuterMan


Yeah, it's cool to think about. If the leading edge of a wave is traveling faster than the speed of sound, then the sound of that wave will always be behind it. Sound can never be in front of it, cause the wave itself outruns the sound.

As to deflection and refraction, I am not sure what portion of waves are actually detoured in this way. I think it may be the higher frequency portions of the waves. Because the super low frequencies like at 1 Hz and below go straight through just about anything. As the frequency in question rises, the more the chance of it encountering a substance and density that can affect its propagation. Again, just my understanding, and am happily sent back to seismology 101.

Im in Seattle /Renton reading ats i didnt feel a thing.

Originally posted by aarys
reply to post by MamaJ

 

On top of the lies are USGS. Our quakes back in June here were recorded as 5 pointers. But the largest was 6.3.
quakes.globalincidentmap.com... Live earthquakes still say 6.8

Not surprised they can't pin down the location, the area is known as the Tonga Arc, but is actually closer to Samoa, your linked map shows 2 quakes, a 6.8 and a 6.3 right now, same time, different places and depth.
Quite possible, the Samoa 8.0 of 2009 was later found to be 2 mag 7.9's ( not 100% sure on decimal point but there wree 2 quakes)
but it doesn't look like a 6.8 on our SNZO

Magnitude
3.6
Date-Time
Thursday, September 22, 2011 at 23:32:09 UTC
Thursday, September 22, 2011 at 06:32:09 PM at epicenter
Time of Earthquake in other Time Zones
Location
36.835°N, 90.766°W
Depth
8.6 km (5.3 miles) (poorly constrained)
Region
SOUTHEASTERN MISSOURI
Distances
34 km (21 miles) WNW of Poplar Bluff, Missouri
50 km (31 miles) NNW of Corning, Arkansas
199 km (123 miles) NNW of Memphis, Tennessee
229 km (142 miles) SSE of JEFFERSON CITY, Missouri
Location Uncertainty
horizontal +/- 8.9 km (5.5 miles); depth +/- 12.5 km (7.8 miles)
Parameters
NST= 52, Nph= 71, Dmin=31.2 km, Rmss=1.18 sec, Gp= 25°,
M-type="Nuttli" surface wave magnitude (mbLg), Version=6
Source
Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
Event ID
usc0005zdn

earthquake.usgs.gov...

reply to post by PuterMan


Yep....I think we may have something here. So I wonder if the sand can do that, what about soil, water and magma? What do you thinK? Possible?

MAG 6.2 TONGA

2011/09/22


23:07:03 UTC



8.6 kms deep

This event has been reviewed by a seismologist.

earthquake.usgs.gov...

seeya