Quake Watch 2010

reply to post by MoorfNZ



Magnitude 6.1 - TONGA
2010 October 12 12:02:55 UTC
Versión en Español
DetailsSummaryMapsScientific & TechnicalTsunami Earthquake Details
This event has been reviewed by a seismologist.
Magnitude 6.1
Date-Time Tuesday, October 12, 2010 at 12:02:55 UTC
Wednesday, October 13, 2010 at 01:02:55 AM at epicenter
Time of Earthquake in other Time Zones

Location 20.485°S, 173.951°W
Depth 9.9 km (6.2 miles)
Region TONGA
Distances 150 km (90 miles) ENE of NUKU`ALOFA, Tonga
205 km (125 miles) S of Neiafu, Tonga
495 km (305 miles) E of Ndoi Island, Fiji
2115 km (1320 miles) NE of Auckland, New Zealand

Location Uncertainty horizontal +/- 15.5 km (9.6 miles); depth +/- 0.3 km (0.2 miles)
Parameters NST=302, Nph=313, Dmin=895 km, Rmss=1.11 sec, Gp= 25°,
M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=7
Source USGS NEIC (WDCS-D)


Event ID usa0003ylz

Getting a bit busy out there isn't it. Switzerland - which I don't normally see on the alert has popped of a few small ones, Baja figuring strongly as is Turkey.

Maybe this is proof that the sun thingys (I love the technical terminology - it makes one feel so knowledgeable) do have an effect since I gather from the other (better) half that they are a bit strong in recent hours.

Possible Underground Nuclear Test?

I missed this yesterday (because I didn't look at any of the other Global Networks other than USGS) and they didn't show it.

Region: Novaya Zemlya, Russia
Time: 2010-10-11 22:48:28.9 UTC
Magnitude: 4.7
Epicenter: 63.95°E 76.28°N
Depth: 10 km
Status: manually revised
geofon

confirmed by emsc
Magnitude mb 4.6
Region NOVAYA ZEMLYA, RUSSIA
Date time 2010-10-11 22:48:25.6 UTC
Location 76.39 N ; 64.64 E
Depth 2 km
Distances 1086 km NW Norilsk (pop 127,503 ; local time 06:48 2010-10-12)
978 km N Severnyy (pop 11,434 ; local time 02:48 2010-10-12)
557 km NW Dikson (pop 1,113 ; local time 06:48 2010-10-12)
emsc page

and also norsar (Norwegian Seismic Array)
NOVAYA ZEMLYA, RUSSIA
Origin time Lat Lon Azres Timres Wres Nphase Ntot Nsta Netmag
2010-284:22.48.22.0 76.43 66.33 6.29 1.44 3.01 8 35 6 4.24
norsar page
norsar phase
arrivals

emsc list INFP (National Institute for Earth Physics -- Bucharest, Romania (BUC)) and RAS Geophysical Survey of the Russian Academy of Sciences -- Obninsk, Russia (GSRC) as data providers, but neither show anything for that location, as well as nothing on USGS (as I said). Is this a "can neither confirm nor deny" non statement by the two superpowers? "Cough, um, na we don't do nuclear tests any more"

Novaya Zemlya Island is the location of many previous USSR/Russian nuclear tests, although this one looks a bit further north than the normal test sites at the southern tip of the island.

To confuse matters, using Google Maps the emsc epi-centre is shown as in an unnamed bay north west of " Nennets" which looks like a label for a peninsula, the geofon location is further down the coast and the norsar epic centre is inland from that first bay.

Nuclear Test or not

I have a list of all recorded USSR Nuclear Tests from 1964-1978 on excel file, but I can't recall where I found it on the Internet.

Is there a Nuclear Forum on ATS where I can post this? So it doesn't get lost in the 221+ pages of Quake Watch 2010

reply to post by muzzy


I am a bit confused

but neither show anything for that location, as well as nothing on USGS

USGS I can understand as it is a bit near their lower limit and they would have recorded it as a Mag 3 anyway and then revised it to a 2.7

You mean on the data provider's sites? I can't get on to Bucharest and as you Russia shows nothing, but Geofon does:

2010-10-11 22:48:28 4.7 76.28 N 63.95 E 10 M Novaya Zemlya, Russia

[atsimg]http://files.abovetopsecret.com/images/member/c93d49289432.png[/atsimg]

Are you saying that because it is NOT on the Russian site it may be a test?

By the way finally coming together

Edit: I thought I would try searching for that quake on the Russian side of the site. Nothin, nada, zilch.



I have send them an email asking them why they are not showing this. I am waiting for the KGB..................

I just created a room for us in the Chat area.

Now all I need is someone to talk to!!!

reply to post by muzzy


Been doing a bit more checking. One of the stations listed in the phase data is in Kazakhstan

MKAR 30.57 155.8 m e P 2010/10/11 22:54:39.6 -1.2 T
GSRC

NNC
KZ

Trolling through their data however I do not find this earthquake.

These are the two that bracket that time:

AFGHANISTAN-TAJIKISTAN BORDER REGION
Origin time Lat Lon Azres Timres Wres Nphase Ntot Nsta Netmag
2010-284:18.59.26.0 36.97 71.90 5.60 0.12 1.52 2 2 1 2.80

Sta Dist Az Ph Time Tres Azim Ares Vel Snr Amp Freq Fkq Pol Arid Mag
KAR 690.8 169.7 Pn 19.00.58.8 -0.2 169.5 -0.2 9.3 12.1 249.1 4.93 3 472638
KAR 690.8 169.7 Sn 19.02.11.9 0.0 180.7 11.0 5.1 6.0 512.7 2.62 2 472640 2.80


EASTERN KAZAKHSTAN
Origin time Lat Lon Azres Timres Wres Nphase Ntot Nsta Netmag
2010-284:23.13.58.0 47.11 80.56 11.70 0.23 3.16 2 2 1 0.88

Sta Dist Az Ph Time Tres Azim Ares Vel Snr Amp Freq Fkq Pol Arid Mag
MKA 136.2 285.7 Pg 23.14.21.2 -0.2 263.9 -21.8 6.2 4.6 83.5 8.61 4 47850
MKA 136.2 285.7 Lg 23.14.36.1 -0.3 287.3 1.6 4.0 4.5 151.9 4.02 3 47851 0.88

So why is it missing form here as well?

Found a plot for MKAR

MKAR.KZ..BHZ.2010.284

This quake was 22:48
Date/Time UTC,Latitude,Longitude,Magnitude,Depth(Km),Location
2010-10-11T22:48:25.600Z,76.39000,64.64000,4.6000,2.0000,NOVAYA ZEMLYA RUSSIA

It is not on the plot, in fact there is nothing at 22:48 and I have looked on about a dozen Russian and Kazak plots now using various different channels.


I have now covered all the Greenland sites I can find. This quake is not showing anywhere. Either it did not happen or "it did not happen"


Finally:
I found one that shows it. SPB1.NO.00.BHZ.2010.284

Reference Number 3388384/G
Universal Time October 13 2010 at 3:42
NZ Daylight Time Wednesday, October 13 2010 at 4:42 pm
Latitude, Longitude 43.58°S, 172.43°E
Focal Depth 15 km
Richter magnitude 5.021ML
Region Canterbury
Location

* 20 km west of Christchurch
www.geonet.org.nz...

reply to post by PuterMan


www.iris.washington.edu...

wheres that station at?

yeah i was saying they didn't report it because it was a nuclear test, but now I think about it the RAS probably has a low mag minimum like usgs.

Just took a look at the iceland quake map and it appears to be quite busy, although theyre not very significant quakes i'd say theres enough of them to raise interest.

[atsimg]http://files.abovetopsecret.com/images/member/fe8488195668.jpg[/atsimg]


I cant help but think theres more to come from this area in the near future.

reply to post by Catch_a_Fire


yeah, that swarm in the northeast started not long ago...They're coming in fast, but they're all small magnitude. One thing to note though is that even during the eruption magnitudes did not go way high into the 5's. They mostly stayed around 2 to 3.5 or so. Iceland seems to stay in continual microquake mode.

You can see it clearer here:
en.vedur.is...

Originally posted by Catch_a_Fire
I cant help but think there's more to come from this area in the near future.

Looks pretty normal to me. As long as the two areas of concern (Myrdalsjokull and Vatnajokull) remain as they are at present we should not have a problem.

As to the last line of your post. You can just bet on that!!

Edit: On the other hand.......

[atsimg]http://files.abovetopsecret.com/images/member/9373f030de46.png[/atsimg]

That is quite a good little bunch all together. Still fairly normal however.

reply to post by muzzy


That is part of the array of instruments at Spitzbergen on Svalbard, home of the Seed Bank and a good set for looking at the Northern areas when nothing comes up on BORG (which is almost all the time). There is also an instrument on Jan Mayen but I don't remember the network off hand - maybe II or IU - nope wrong they are all in the NO network

Ive only really had a raised interest since eyja' went off, but lately, ive been watching this map a little closer and dont recall so many quakes in such quick succession. I have nowhere near the experience of this forums regular's so it doesnt take a lot for it to appear unusual to me lol.

Speaking of Russia, can someone please explain the Russia, Republic of Korea, Pitcairn Is. and Kirribati seismic graphs on this site? aslwww.cr.usgs.gov...
I noticed Russia was very similar yesterday also. I don't know where these stations are or their proximity to the reported quakes. I'm hoping one of you may shed some light.
This site also had movement on a graph yesterday for Charters Towers in Queensland Australia. I looked at the Geoscience site and it wasn't mentioned on there. Just how many different quake reporting sites do you need to look at to get the most complete picture of what's really shaking in the world?

reply to post by Catch_a_Fire


Please don't take my comment badly. I was not knocking your interest, merely stating that this is kind of normal for the area, The area at the north of the map is always active, as the the area in the south west and basically this is because these areas are the lead in and lead out if you like of the North Atlantic Ridge which Iceland sits on top of.

Whilst they can look a bit scary at times, generally although showing many red dots they are pretty much OK. Hengill/Reykjanes, the south west area, can produce some large quakes - in fact some of the largest in Iceland, whereas the Tjornes Fracture Zone (hope I spelt that right - from memory) is perhaps a slightly lower level.

Obviously you will be aware of Eyjafjallajokull and it's big sister Katla which is the Myrdalsjokull ice cap, but you should also look at the Vatnajokull icecap which is home to Grimsvotn, Bardabunga, Esjufjoll and some others I can't remember of the top of my head. Between these two areas lies the fracture zone that contains Laki, source of the mega problems for Europe in the 1780s. These are interconnected and Grimsvotn (Vatnajokull) sits on the top of the plume under Iceland which is of comparable size to Yellowstone but of a different nature.

It is my personal feeling that the next major activity we will see will be under Vatnajokull and not Katla, however I am also of the opinion that Hekla is one to watch. Hekla is aseismic, which means basically it gives no warning. Last time it erupted it was around 30 minutes. There is another area next to it (Tindfjallajokull from memory) that gets seismic before Hekla blows so that is an area to watch. This is the area to the north of Eyjafjoll.

Source: My head.

reply to post by PuterMan


No, i didnt take it that way at all, i just felt the need to state my newbness (i think i may have just made that word up lol) as i know so many people come to these forums screaming end times and didnt want that label. The majority of regulars to this forum do a great job and i thoroughly enjoy trying to keep up with it all.

Originally posted by zenius
Speaking of Russia, can someone please explain the Russia, Republic of Korea, Pitcairn Is. and Kirribati seismic graphs on this site? aslwww.cr.usgs.gov...

Unfortunately those particular stations are often like that. Sometimes it will be because a large quake close by has over-driven a sensitive instrument, but the Russian ones are often bad.

This site also had movement on a graph yesterday for Charters Towers in Queensland Australia. I looked at the Geoscience site and it wasn't mentioned on there. Just how many different quake reporting sites do you need to look at to get the most complete picture of what's really shaking in the world?

Very difficult to say. First it depends on the size of the quake. Smaller ones may have a big effect on a local instrument but will not be felt further away. The LISS page you referenced is actually quite good since you get a very good picture fairly instantly of whether one instrument is showing a local or global event. By global event I mean one which rattles the planet, say for example a deep 6.5/7 in Brazil or Spain this year, or a shallower larger quake. The deep subduction zone quakes tend to make the whole world ring and generate threads on ATS despite the fact that relatively speaking they are often not that large.

I would say that at a minimum you need to look at USGS and EMSC if it is a relatively biggie, but I guess most of the regulars on this thread would say 5 or 6. USGS, EMSC, Russia, Norway, GeoNet, GeoScience, Iran, Chile, Equador, Japan, China - oh sorry that is more than 6

Thanks Puterman. I'll have to increase my earthquake favorites list it seems. You'd think with today's technology there'd be a web site that would combine info from all these sites for us. There must be plenty of researchers and scientists who have found a better way of keeping up with our planets rattles. Oh, yeh.....there is......"Quake Watch 2010". Great job you regular contributers do. Thanks.

Originally posted by zenius
Thanks Puterman. I'll have to increase my earthquake favorites list it seems. You'd think with today's technology there'd be a web site that would combine info from all these sites for us. There must be plenty of researchers and scientists who have found a better way of keeping up with our planets rattles. Oh, yeh.....there is......"Quake Watch 2010". Great job you regular contributers do. Thanks.

There is one that combines the main three USGS. EMSC and GeoFon which i forgot to mention.

Live Earthquake Mashup

When it gets released in late October my program also combines USGS and EMSC and has an alert screen that pops up even if you are not using a browser. You have to have an internet connection but you do not need to have a browser screen open.

[atsimg]http://files.abovetopsecret.com/images/member/5b9075fb82b7.png[/atsimg]

I happen to like it popping up centre top but you can select any of 6 positions.

reply to post by PuterMan

Thanks, the mash up site is pretty cool, once I worked out how to change the date. That sliding bar is a good idea.
Good to hear you're making your own program. I love the firefox shake alerts but the kids hate it when they're on my computer (interupts their games). Similar programs for extreme weather, tsunami and volcano alerts would be good too. Do they exist? Is there a reason you're only using a couple of sites? or will you build on it over time?