Quake Watch 2011

reply to post by megabogie


Ha Ha. Yes how our minds work sometimes on here. As soon as I saw that quake on USGS. I thought the US had been playing around with HAARP again. You know with all this Iran war stuff going on at the Mo. Then I got back to reality.

reply to post by PuterMan

Wouldn't surprise me if there is fracking going on in various places in South Australia, but I think it's very unlikely that there is any going on in the immediate region where yesterday's mag 3.3 occurred. (But please see my final comments about cause and effect.)

As it happens, I built my first home in Aldgate, a lovely little town only 4 miles NE from the quake's epicenter, so I know the district pretty well. The area around the quake's epicenter is known as Upper Sturt and besides being very beautiful (and very hilly!), it's also a rather expensive place to live. A "cheap home" there is around half a million dollars and it's not uncommon for places to be well over a million. Most of the people who live there are very strong on preserving the environment as much as possible and aside from what needs to be done to build a home they like things to be left alone. I seriously doubt that they would allow exploratory drilling -- let alone fracking -- in what are literally their back yards.

Yes, I know what's been happening in the US in places like Arkansas, where fracking is basically going on in people's back yards. But it's not quite the same situation in some respects. For one, while the area around the quake might look pretty rural on Google Earth, it's actually rather residential and only about 30 minutes from the city center. Most of the individual land holdings are fairly small. Moreover, as someone else mentioned, just a few km away there are extensive vineyards that produce some excellent wine. (The original vine cuttings were mostly brought over by German immigrants in around the middle of the 19th century.) Those vineyards are now worth an absolute fortune and very, very few hectares have been bought up by real estate developers over the years. People want them preserved as part of the state's heritage.

Down on the Adelaide plains (north of Adelaide), out towards Dublin and Mallala, it's another story entirely. It's a pretty drab region, flat, few trees of any size; most of it is used either for general light industry, or for market gardening and/or grazing livestock. There are several exploration licenses for large sections of land on the plains and I don't think many people are concerned by this. (Okay, perhaps they should be and we all know why, but I'm just saying it like it is.) But the Adelaide hills, close to the city? No, I can't see much exploration going on there beyond general surveying as part of the overall study of the state's geomorphology. Finally, the hills region also has signifcant areas that are protected and not even residential use is allowed, let alone industrial use -- which includes oil/gas exploration.

But here's the problem: as there is a fault line that runs along that range of hills, it's possible that even drilling/fracking some greater distance away could have a knock-on effect. So, while I don't believe that there is fracking in the immediate area where the quake occurred, I will not discount the possibility that such activites further afield could cause seismic effects.

Put it this way: if we see a significant uptick in the number of quakes in the Adelaide region then we can suspect a possible human-based cause. I'm hoping there won't be (especially as I have children and grandchildren living in the Adelaide hills), but I am genuinely worried that there might be.

Best regards,

Mike

Japan is showing some movement along the edge of the plates:

Magnitude
4.6
Date-Time
Wednesday, October 19, 2011 at 12:03:06 UTC
Wednesday, October 19, 2011 at 09:03:06 PM at epicenter
Time of Earthquake in other Time Zones
Location
30.210°N, 142.243°E
Depth
24.8 km (15.4 miles)
Region
IZU ISLANDS, JAPAN REGION
Distances
346 km (214 miles) N of Chichi-shima, Bonin Islands, Japan
396 km (246 miles) SE of Hachijo-jima, Izu Islands, Japan
608 km (377 miles) N of Iwo Jima, Volcano Islands, Japan
650 km (403 miles) SSE of TOKYO, Japan
Location Uncertainty
horizontal +/- 22.6 km (14.0 miles); depth +/- 9.6 km (6.0 miles)
Parameters
NST= 27, Nph= 27, Dmin=345.1 km, Rmss=0.52 sec, Gp= 68°,
M-type=body wave magnitude (Mb), Version=5
Source
Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
Event ID
usb0006a46

Source: USGS

Be Well.

Summary

DATE
19/10/2011

ORIGIN TIME
02:32:46.9 UTC

LOCATION
53.206 -0.868

DEPTH
4 km

MAGNITUDE
1.6

LOCALITY
TUXFORD,NOTTS


macroseismic report received 19 Oct 2011, location : New Ollerton approx 9km west of the epicentre. It was reported that the individual was woken by a weak trembling. GDF 19 Oct 2011

Link to BGS

Recent events
Magnitude mb 4.8
Region PHILIPPINE ISLANDS REGION
Date time 2011-10-19 11:29:35.0 UTC
Location 13.74 N ; 119.81 E
Depth 66 km
Distances 130 km SW Olongapo (pop 220,021 ; local time 19:29:35.1 2011-10-19)
90 km W Calatagan (pop 16,110 ; local time 19:29:35.1 2011-10-19)
31 km SW Cabra (pop 3,261 ; local time 19:29:35.1 2011-10-19)
Source parameters not yet reviewed by a seismologist

Magnitude mb 4.8
Region VANUATU
Date time 2011-10-19 11:46:30.0 UTC
Location 17.49 S ; 167.20 E
Depth 10 km
Distances 1191 km W Suva (pop 199,455 ; local time 23:46:30.2 2011-10-19)
121 km W Vila (pop 35,901 ; local time 22:46:30.2 2011-10-19)
Source parameters not yet reviewed by a seismologist

Magnitude mb 4.7
Region IZU ISLANDS, JAPAN REGION
Date time 2011-10-19 12:03:05.0 UTC
Location 30.22 N ; 142.22 E
Depth 15 km
Distances 610 km SE Yokosuka (pop 428,992 ; local time 21:03:05.0 2011-10-19)
574 km SE Tateyama (pop 50,064 ; local time 21:03:05.0 2011-10-19)
Source parameters not yet reviewed by a seismologist

Magnitude MD 3.1
Region WESTERN TURKEY
Date time 2011-10-19 12:35:48.0 UTC
Location 36.13 N ; 29.27 E
Depth 3 km
Distances 154 km SW Antalya (pop 758,188 ; local time 15:35:48.0 2011-10-19)
56 km S Fethiye (pop 60,437 ; local time 15:35:48.0 2011-10-19)
34 km W Kas (pop 7,452 ; local time 15:35:48.0 2011-10-19)
Source parameters provided by another agency

Rainbows
Jane

Scientists Explore Quake Zone Southwest of New Madrid

Between Little Rock, Ark., and Memphis, Tenn., scientists have found evidence of an earthquake source capable of magnitude 7 or greater earthquakes located at the southwestern end of the ancient Reelfoot Rift. This is the same geologic structure that hosts the New Madrid seismic zone which is responsible for the major earthquakes that occurred in the midcontinent almost 200 years ago.
www.usgs.gov...

This is a media release I just saw @ USGS, this is the area where I live and just thought it was interesting considering there has been some teeny weeny activity in TN recently.

Last month, Easter Island had a good size quake. Today, here is another one:

Magnitude
5.1
Date-Time
Wednesday, October 19, 2011 at 13:26:06 UTC
Wednesday, October 19, 2011 at 05:26:06 AM at epicenter
Time of Earthquake in other Time Zones
Location
22.405°S, 113.042°W
Depth
15 km (9.3 miles)
Region
EASTER ISLAND REGION
Distances
639 km (397 miles) NW of Hanga Roa, Easter Island
1761 km (1094 miles) E of ADAMSTOWN, Pitcairn Islands
2251 km (1398 miles) E of Rikitea, Mangareva, French Polynesia
4314 km (2680 miles) W of SANTIAGO, Region Metropolitana, Chile
Location Uncertainty
horizontal +/- 28.9 km (18.0 miles); depth +/- 6.5 km (4.0 miles)
Parameters
NST=111, Nph=111, Dmin=>999 km, Rmss=0.92 sec, Gp= 72°,
M-type=body wave magnitude (Mb), Version=5
Source
Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
Event ID
usb0006a4p

Source: USGS

Be Well.

www.radionz.co.nz...

www.cbc.ca...

www.calgaryherald.com...

www.stuff.co.nz...

www.thecitywire.com.../18220

seekingalpha.com...

www.newsobserver.com...

www.irishtimes.com...

reply to post by TrueAmerican


Iranian Seismic Service

There seem to be one or two smaller ones in Fars province for sure. UOSS.II.10.BHZ.2011.292

Re 4.8, I looked in GE and that area is certainly familiar with the triple junction but I honestly can't remember what I said!




Forgot: I came on to say
EASTERN NEW GUINEA REG, PAPUA NEW GUINEA. MW 6.5 on offer, reduced from 6.7
AMURSKAYA OBLAST', RUSSIA. MW 6.0 on offer, reduced from 6.1

More bargains in store soon. Keep an eye out on your not so local press.

reply to post by PuterMan


The U.S. is pretty quiet at this time...

reply to post by eeks4


The calm before the storm?

reply to post by peacefulwarrior3


The quieter it gets the bigger the storm?

Keeping an extra eye out.

reply to post by SunflowerStar


Hawaii had a bunch of little quakes today and Mexico had a 5.o...earthquake.usgs.gov...

reply to post by eeks4


Interesting i think...Hawaii...
3.1
2.7
3.1
2.6
3.6
4.5

3.0 2011/10/20 00:48:01 19.876 -155.541 16.8 ISLAND OF HAWAII, HAWAII
2.8 2011/10/20 00:45:17 19.879 -155.545 15.2 ISLAND OF HAWAII, HAWAII
3.1 2011/10/20 00:31:52 19.868 -155.537 16.1 ISLAND OF HAWAII, HAWAII
2.7 2011/10/20 00:27:44 19.874 -155.543 14.7 ISLAND OF HAWAII, HAWAII
3.1 2011/10/20 00:21:04 19.871 -155.543 15.7 ISLAND OF HAWAII, HAWAII
2.6 2011/10/20 00:18:10 19.872 -155.542 17.3 ISLAND OF HAWAII, HAWAII
3.6 2011/10/20 00:12:34 19.882 -155.533 16.6 ISLAND OF HAWAII, HAWAII
4.5 2011/10/20 00:10:04 19.886 -155.533 18.7 ISLAND OF HAWAII, HAWAII

Hilo is rockin and rollin and shakin today

I had to add two more while writing this post.

earthquake.usgs.gov...

I don't know where to find a helicorder for that area...are these harmonic???

reply to post by eeks4


Yes, something is upset on the big island. Watching in GEE as these shocks come in. Another just now at 00:59:13 UTC or so. Estimate: 2.9 to 3.3 (I don't have good reference on estimates here yet).


Lol, I guess once a quake, always a quake. 3.3 USGS:
earthquake.usgs.gov...

Reference: 3.3 at about 150 microns/sec IU.POHA
Reference 2: I pulled the waveform for the 4.5 and it was about 2.2 mm/s. Note that is mm/s not microns. Pretty good jolt.

And the station IU.POHA is way off center too.

But does it look volcanic????

Anybody????

Hawaii is really rocking - hope things
calm down soon. Going to look up
some history on the island and
the volcano, its been a while. Keeping
a close eye on this one!

Kilauea Hawaii and Pacific Ocean, HI 1302-01- Watch Orange - USGS


Seems they are keeping an eye on
the volcano. I hope the quakes
are not tremors.