Quake Watch 2011

reply to post by RumET


Thank you RumET! I have looked at those weekly for quite some time. Usually there will be a few that have a little bit of something, I have never practically all of the states showing THAT much activity all at once. Seems like there is activity, all over, yet nothing on USGS. My biggest question is, why not?

reply to post by summer5

What you are seeing ( right now when I just looked) is this
5.2 2011/07/18 22:48:27 51.376 179.044 57.2 RAT ISLANDS, ALEUTIAN ISLANDS, ALASKA
5.6 2011/07/18 22:38:39 51.181 179.076 18.4 RAT ISLANDS, ALEUTIAN ISLANDS, ALASKA

A 5.6 is a decent sized moderate quake and with that 2nd one only 10 minutes later the two traces merge together.
See how its earlier on this Alaska graph and quite a big trace ( and similar on all the West Coast graphs)
aslwww.cr.usgs.gov...

whereas away on the other side of the USA, in Tennessee, its later ( travel time) and weaker, but you can see the two seperate quakes more distinctly.on this one (and other Eastern seaboard graphs too)
aslwww.cr.usgs.gov...

reply to post by muzzy


Thank you, Muzzy. So let me clarify to make sure I am following you. You are saying the earlier quakes on the west coast, eventually caused some on the east coast - yes?

And the 1 that you used as an example in TN, would also cause around the same time,aslwww.cr.usgs.gov... this to happen North East of the TN location?

I looked at your TN link, and then the one in Virginia and they basically were at the same time frame. So that does make a bit of sense.

reply to post by summer5


I believe he is saying those quakes register first closer to the origin of the earth movements. The measuring stations (which have quite sensitive equipment that can measure quakes from all over the world) further away measure the same quakes just later and possibly weaker. I don't think the original quakes trigger other ones all over the country. But I may be mistaken, after all I am a Russian with merely amateur seismograph training.

reply to post by summer5


No.

It just takes awhile, depending on how big and how far away, for those quakes to register at the stations that are further away.

For example, the 6.1 quake up in Alaka a day or so ago showed up nicely on the seismograph near my house...but a couple of minutes later. It was NOT a seperate quake, but rather the waves of the 6.1 in Alaska.

I like to compare it to this:

Imagine you are standing on a dock and throw a rock out into the water right next to your friend. The impact and movement of water is right next to them so they felt it when it struck. The ripples that it caused travel the distance to you on the dock and hit against it. YOU do not feel the waves hit the dock....but if a seismograph were sitting there, it would have picked it up. Same thing going on with a quake. Except with a large one, like the one in Japan, sometimes those 'P' and 'S' waves can travel the world several times before they dissipate. Remeber that this world we live on a closed ecosystem and there is a yin and yang involved in almost everything.

Hope that clarify's it for you.

Here is a great site at the USGS that explains the different waves involved and how they travel:

What is a P wave? A S wave?

Magnitude
3.4
Date-Time
Tuesday, July 19, 2011 at 06:42:30 UTC
Tuesday, July 19, 2011 at 12:42:30 AM at epicenter
Location
43.163°N, 110.915°W
Depth
4.8 km (3.0 miles)
Region
WYOMING
Distances
8 km (5 miles) E (101°) from Alpine Northeast, WY
8 km (5 miles) E (88°) from Alpine, WY
10 km (6 miles) ESE (103°) from Alpine Northwest, WY
37 km (23 miles) SSW (199°) from Jackson, WY
280 km (174 miles) NNE (16°) from Salt Lake City, UT
Location Uncertainty
horizontal +/- 10.8 km (6.7 miles); depth +/- 3 km (1.9 miles)
Parameters
NST=155, Nph=161, Dmin=22.3 km, Rmss=0.75 sec, Gp= 36°,
M-type=local magnitude (ML), Version=5
Source
USGS NEIC (WDCS-D)
Event ID
usc00050a3

earthquake.usgs.gov...

Recorded all over New Zealand, but not really in Wellington:





Was there a train through Kaikoura this morning?:





Little shake in Chch just now:



Images sourced from www.geonet.org.nz...

E/Q update...

one biggy in ITALY and one in FIJI...

thanks usgs,,,

earthquake.usgs.gov...

....................................................

MAG 5.5 FIJI

2011/07/19

07:15:53 (UTC)

-23.613
179.245 (MAP)

543.2 kms depth

SOUTH OF THE FIJI ISLANDS

..............................................


MAG 5.1 ITALY

2011/07/19

07:13:18 (UTC)

37.412 20.182 (map)

13.6 kms depth

IONIAN SEA

+ volcano in ITALY...ETNA...

seeya

Magnitude mb 4.7
Region IONIAN SEA
Date time 2011-07-19 07:13:18.0 UTC
Location 37.41 N ; 20.21 E
Depth 10 km
Distances 162 km SW Pátrai (pop 163,360 ; local time 10:13:18.2 2011-07-19)
74 km SW Zákinthos (pop 11,541 ; local time 10:13:18.2 2011-07-19)
64 km SW Mouzákion (pop 1,545 ; local time 10:13:18.2 2011-07-19)

Magnitude ML 3.4
Region IONIAN SEA
Date time 2011-07-19 07:37:37.3 UTC
Location 37.29 N ; 19.90 E
Depth 10 km
Distances 192 km SW Pátrai (pop 163,360 ; local time 10:37:37.3 2011-07-19)
104 km SW Zákinthos (pop 11,541 ; local time 10:37:37.3 2011-07-19)
95 km SW Mouzákion (pop 1,545 ; local time 10:37:37.3 2011-07-19)

Map
www.emsc-csem.org...
www.emsc-csem.org...


USGS Data

Magnitude
4.9
Date-Time
Tuesday, July 19, 2011 at 07:13:18 UTC
Tuesday, July 19, 2011 at 10:13:18 AM at epicenter
Time of Earthquake in other Time Zones
Location
37.403°N, 20.159°E
Depth
22 km (13.7 miles)
Region
IONIAN SEA
Distances
78 km (48 miles) WSW of Zakynthos, Greece
167 km (103 miles) WSW of Patrai, Greece
177 km (109 miles) WNW of Kalamata, Greece
321 km (199 miles) W of ATHENS, Greece
Location Uncertainty
horizontal +/- 12.3 km (7.6 miles); depth +/- 10.5 km (6.5 miles)
Parameters
NST= 83, Nph= 85, Dmin=262.7 km, Rmss=0.9 sec, Gp= 36°,
M-type=body wave magnitude (Mb), Version=6
Source
USGS NEIC (WDCS-D)
Event ID
usc00050ab

then upgraded

Magnitude
5.1
Date-Time
Tuesday, July 19, 2011 at 07:13:18 UTC
Tuesday, July 19, 2011 at 10:13:18 AM at epicenter
Time of Earthquake in other Time Zones
Location
37.412°N, 20.182°E
Depth
13.6 km (8.5 miles)
Region
IONIAN SEA
Distances
78 km (48 miles) WSW of Zakynthos, Greece
167 km (103 miles) WSW of Patrai, Greece
177 km (109 miles) WNW of Kalamata, Greece
321 km (199 miles) W of ATHENS, Greece
Location Uncertainty
horizontal +/- 11.9 km (7.4 miles); depth +/- 5.9 km (3.7 miles)
Parameters
NST=209, Nph=213, Dmin=260.5 km, Rmss=0.88 sec, Gp= 36°,
M-type=body wave magnitude (Mb), Version=8
Source
USGS NEIC (WDCS-D)
Event ID
usc00050ab

reply to post by summer5

RumEt and Westcoast pretty well explained it.

All the graphs are showing the same two close-timed quake in the Rat Islands, Alaska
I would also add that LISS seems to be set to record larger sized quakes Globally rather than smaller ones locally on each graph ie if there was a Mag 3.0 in Tenneesse it likely LISS wouldn't show it, even on the Teneessee Graph.

If you are after local quakes there are other sources, which I don't have at hand right now, perhaps some others here can help you out with that

I hope I'm spelling Tenneesee correctly

reply to post by muzzy


Tennessee

and while I'm at it... Mississippi

reply to post by aorAki

Shows strongest on Urewera, not sure, maybe something high 4rish off East Cape/ Tolaga Bay way?
Yeah that Kaikoura's a mystery, seen that before in the past and was mentioned here (by yourself I believe)
Won't know until tomorrow I guess.

reply to post by berkeleygal

I knew it didn't look right

I was going to try Missis.......... but I forgot the rhyme we learned in school

I live just outside of Nashville and go to this site to see the local EQ's.....

folkworm.ceri.memphis.edu...

I didn't read all the posts so If someone already out the link up I apologize....and if not....here ya go.

Also, I am watching closely too as I am wondering who will have the next Big One......Earth is definitely shaking a lot and its only a matter of time (I think) before another one hits and I am of course concerned for my area (New Madrid).

Peace and love to you and yours!!!! xoxox

Jenn

Three more quakes in Central Arkansas. 10 quakes in the last four days. It's not a swarm, but is definately a cluster. What has me a bit edgy, is that the new ones are in different areas.

2.2M Plumerville
2.2M Holland
2.2M Morriton/Plumerville

The map with the locations makes it look as if the quakes are set into a "V". Like Canada Geese when they're flying south. The "new" faultine that runs from Greenbrier to Guy was along a Southwest to Northeast trend. With the larger of the swarm's quakes extending laterally from the fault. If you take the newest quake near Plumerville, and the quake near Enola, you get a trend which is similiar to the lateral lines off the new fault.

You may also want to note, that two of those quakes are very near a nuclear plant.

That "V", it seems to be pointing at Enola.
If you don't know, Enola has been the location of two recorded swarms over the past decades.

So what's going on?
The faultlines are readjusting. Each restless section rubbing up against a neighbouring fault system.
Central Arakansas is now like a crowded dance floor.
Let's hope it doesn't turn into a slam dancing mosh pit.

Let's hope it doesn't turn into a slam dancing mosh pit.

reply to post by Robin Marks


Now that right there made me LOL!!!!! Reminds me of my "younger" days.

Yeah I saw the same thing too......not only that but Texas too have had a few in the last 24 hours.....I know the New Madrid has many a year but with all the activity around the globe and ring of fire not to mention predictions from dead, old, and young.....make me stay right here on the edge of my seat watching to see where the Earth will shake next. I have to say though....I am not worried or scared....just aware of what seems to be a trend these days.

A question for all you earthquake specialists. How long has it been since we've had a 7.0 or larger? It seems a bit quiet over the last couple of weeks, to me. I happen to be a person that thinks there is something to these planet/sun/NEO alignments and large earthquakes, or at least, I am willing to look further, and it coincidentally is a time right now that there are no predictions for major alignments. Anyone elso notice this or am I way off base here?

reply to post by westcoast


AH! Thanks WestCoast! That sure helped.

One more question, why are those not showing up as a quake, they look like they should be showing something...

reply to post by SunnyDee

Last mag 7 was;

Date/Time: 2011/7/10 57:10:01
Lat: -29.312 Long: -176.204 [usgs]
Region: Off the east coast of Honshu, Japan
Magnitude:
mb 6.8 [usgs] ML 6.5 [usgs]
Mw 7.0 [usgs] Ms 7.3 [ras]
Mw 6.9 [geofon] mb 7.1 [ras]
Depth: 34.9 km
Deaths: n/a Injuries: n/a
Tsunami: no

Magnitude 6.2
Date-Time Tuesday, July 19, 2011 at 19:35:42 UTC
Wednesday, July 20, 2011 at 01:35:42 AM at epicenter

Location 40.130°N, 71.435°E
Depth 9.2 km (5.7 miles)
Region KYRGYZSTAN
Distances 30 km (18 miles) SSE (160°) from Farghona (Fergana), Uzbekistan
64 km (40 miles) SE (137°) from Quqon (Kokand), Uzbekistan
97 km (60 miles) SSW (193°) from Namangan, Uzbekistan
226 km (140 miles) ESE (123°) from TASHKENT, Uzbekistan

Location Uncertainty horizontal +/- 12.8 km (8.0 miles); depth +/- 3.8 km (2.4 miles)
Parameters NST=383, Nph=390, Dmin=339.5 km, Rmss=1.08 sec, Gp= 22°,
M-type=regional moment magnitude (Mw), Version=B
Source U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver

Event ID usc00050ll

Source