Quake Watch 2010

I'm doing a bit of research into Magn7+ earthquakes ona Global scale.
I'm using USGS back to 1973 when they started out, with cross referencing with NZ Geonet, EMSC and Geofon.
Before 1973 I will have to rely on NOAA. (National Geophysical Data Center)
They have a catalogue going back to 2150 BC
www.ngdc.noaa.gov...

There must be other sources

I've started looking at obsure Networks to see whats there, found this one this morning, its part of the Russian Academy of Sciences, but relates specifically to Kamchatka, which has more than its fair share of 7+ quakes.
I already found one Mag 7.3 in 1971 that wasn't on the NOAA list

Heres the link, may be of interest to some
www.emsd.iks.ru...

reply to post by muzzy


This could be very interesting, especially if there are more as it would possibly prove that actually earthquake frequency is decreasing.

Thanks for that.

Edit: I assume you have tried ANSS?

Save you the grief: Here is the file (CSV). This is all 7.0+ quakes from 1898 onwards

[edit on 19/6/2010 by PuterMan]

reply to post by PuterMan


OMG I never even looked at ANSS, I thought they would have the same list as NIEC so never bothered.

I downloaded your link to the Search you did for me, thanks for that

This is going to be VERY interesting, taking a look at just one year 1971, I see 4 more events that I already had, and I had 4 more other events than ANSS had

Holy Cow I'm going to have to start again

Heres the work in progress, I've only gone back 40 years so far .......
45to47south.wordpress.com...

The icons load slowly but they do load on.

while the decade graphs tell a story, I'm not sure the yearly graphs do much??? there is no pattern to what month they occur

[edit on 20-6-2010 by muzzy]

Something new from Geonet for those who use Google Earth.
I changed the icons to my colour codes
aqua 1-2
green 2-3
grey 3-4
yellow 4-5

NZ Quakes 18-19 June UTC

There seems to be a trick to getting the sliding sequence working.
To get the sliding time tour to work you seem to have to run the slider to the end to get all the events on the map, then the slider can be split in two halves, take one half back to the start. Then you can click on the run button (2nd from left) and it goes through the sequence, leaving old ones there.


[edit on 20-6-2010 by muzzy]

reply to post by muzzy


Excellent work so far.

Keep on going!! I will see if I can find any other sources.

reply to post by PuterMan

I did a cross reference using Excel for the 1970's to compare the data ANSS and NOAA as a starting place, I found 4 more in 1970, 3 in 1971, 1 in 1972 and 1 in 1979. So apart from the 1979 one, which was a 7.0ML SW of Kodiak Island Alaska, and perhaps had a lower magnitude on NOAA that didn't get picked up on my search, it looks like I'm OK with what I have already done.
The ANSS data seems to match NOAA for the period 1973-1979, so maybe I won't have to redo the whole project. Thats a relief
I will check anyways.
Pre 1973 the ANSS data will be most helpful though.
Thanks again for the heads up.

Do you have any idea whats with the British Geological historical data?
I got a page off their main page which has a lot of data but they seem to just show intensity that quakes were felt in particular places in the UK and Ireland, they don't show where the actual quake was.
Maybe I am missing something here, or am looking at the wrong pages.
Any 7+ in the UK region historically? perhaps in the North Sea or out near Scandanavia that the other sources might have missed?

This showed up quite well on our Karori siesmograph just now, stronger reading than in Chile
aslwww.cr.usgs.gov...
aslwww.cr.usgs.gov...

Region: Southeast of Easter Island
Time: 2010-06-20 21:08:50.1 UTC
Magnitude: 5.7
Epicenter: 100.49°W 35.94°S
Depth: 10 km
Status: manually revised
Source: Geofon

Magnitude mb 5.3
Region SOUTHEAST OF EASTER ISLAND
Date time 2010-06-20 at 21:08:54.0 UTC
Location 36.03 S ; 100.17 W
Depth 33 km
Distances 2391 km W Valdivia (pop 133,419 ; local time 17:08 2010-06-20)
2358 km W Ancud (pop 28,020 ; local time 17:08 2010-06-20)
Source EMSC

Magnitude 5.3
Date-Time
* Sunday, June 20, 2010 at 21:08:50 UTC
* Sunday, June 20, 2010 at 02:08:50 PM at epicenter
* Time of Earthquake in other Time Zones
Location 36.073°S, 100.110°W
Depth 10 km (6.2 miles)
Region SOUTHEAST OF EASTER ISLAND
Distances 1320 km (820 miles) SE of Hanga Roa, Easter Island
2700 km (1680 miles) WSW of SANTIAGO, Region Metropolitana, Chile
M-type=body wave magnitude (Mb), Version=6
Event ID us2010xtbk
Source * USGS NEIC (WDCS-D)

reply to post by muzzy


Is 33km a 'default' depth do you think (EMSC)?

I notice that the USGS data has it at their default of 10km (of OMG 10 Russian nukes fame) and so do Geofon

Do you have any idea whats with the British Geological historical data?
I got a page off their main page which has a lot of data but they seem to just show intensity that quakes were felt in particular places in the UK and Ireland, they don't show where the actual quake was.
Maybe I am missing something here, or am looking at the wrong pages.
Any 7+ in the UK region historically? perhaps in the North Sea or out near Scandanavia that the other sources might have missed?

Well no 7+ in my lifetime so that takes you back to before 1950, and somehow I don't think there are any in the UK or Ireland. Ireland just does not do earthquakes except small ones in Clare when the poitin is wearing off.

Apart from that I guess there were probably some in Iceland for sure and since the one and only 'international' seismo (II.BORG) is relatively recent one could have been missed.

Edit: I have managed to find out that the largest ever (reliably accurate) quake recorded in the UK was on the Dogger Bank - a 6.1ML, in 1931. (Source: British Geological Survey)

[edit on 20/6/2010 by PuterMan]

Magnitude 4.6 - NORTH OF SVALBARD 2010 June 21 06:39:34 UTC

Location
81.227°N, 3.554°W
Depth
10 km (6.2 miles) set by location program
Region
NORTH OF SVALBARD
Distances
240 km (149 miles) E (96°) from Nord, Greenland
1656 km (1029 miles) NNW (339°) from Murmansk, Russia
1971 km (1225 miles) N (9°) from REYKJAVIK, Iceland

[atsimg]http://files.abovetopsecret.com/images/member/f38b0e86c4df.gif[/atsimg]

earthquake.usgs.gov...

right on a faultline

reply to post by berkeleygal


There was a 4.7 as well

Magnitude 4.7
Date-Time Monday, June 21, 2010 at 07:45:34 UTC
Monday, June 21, 2010 at 07:45:34 AM at epicenter
Time of Earthquake in other Time Zones

Location 80.238°N, 3.835°W
Depth 10 km (6.2 miles) set by location program
Region NORTH OF SVALBARD
Distances 295 km (185 miles) ESE of Nord, Greenland
975 km (600 miles) ENE of Alert, Nunavut, Canada
1335 km (830 miles) NNW of Tromso, Norway
2295 km (1420 miles) NNE of NUUK (GODTHAB), Greenland

Location Uncertainty horizontal +/- 17.8 km (11.1 miles); depth fixed by location program
Parameters NST= 18, Nph= 18, Dmin=350.6 km, Rmss=1.15 sec, Gp=137°,
M-type=body wave magnitude (Mb), Version=7
Source USGS NEIC (WDCS-D)


Event ID us2010xuas

They often are on the mid Atlantic ridge in that area. Just right to upset the Global Seed Bank!

---------------------------

Guatemala earthquake. Only 4.2 but posted so you have the address. Done as images - most annoying - can't scrape.

[edit on 21/6/2010 by PuterMan]

Magnitude 5.0
Date-Time

* Monday, June 21, 2010 at 10:23:21 UTC
* Monday, June 21, 2010 at 09:23:21 PM at epicenter
* Time of Earthquake in other Time Zones

Location 16.856°S, 166.851°E
Depth 35 km (21.7 miles) set by location program
Region VANUATU
Distances 150 km (95 miles) SSW of Luganville, Espiritu Santo, Vanuatu
185 km (115 miles) WNW of PORT-VILA, Efate, Vanuatu
390 km (245 miles) NW of Isangel, Tanna, Vanuatu
1845 km (1150 miles) NE of BRISBANE, Queensland, Australia
Location Uncertainty horizontal +/- 13.5 km (8.4 miles); depth fixed by location program
Parameters NST= 34, Nph= 34, Dmin=>999 km, Rmss=0.82 sec, Gp= 65°,
M-type=body wave magnitude (Mb), Version=6
Source

* USGS NEIC (WDCS-D)

Event ID us2010xuaw

I don't know - I live in the Catskill Mountain of New York State. My building just shook and there was no wind of big truck going by. I think we just had a earthquake :-)

reply to post by Anmarie96


I just felt it here in Cambridge Ohio

Just felt one in West Chester Ohio about 10 minutes ago...

EDIT - Downgrade to 5.0


== PRELIMINARY EARTHQUAKE REPORT ==



Region: SOUTHERN ONTARIO, CANADA
Geographic coordinates: 45.955N, 75.545W
Magnitude: 5.5 Mb
Depth: 19 km
Universal Time (UTC): 23 Jun 2010 17:41:42
Time near the Epicenter: 23 Jun 2010 13:41:42
Local standard time in your area: 23 Jun 2010 12:41:42

Location with respect to nearby cities:
49 km (31 miles) N (349 degrees) of Cumberland, Ontario, Canada
52 km (33 miles) N (10 degrees) of Gatineau, Québec, Canada
58 km (36 miles) NNE (16 degrees) of Hull, Québec, Canada
61 km (38 miles) N (11 degrees) of OTTAWA, Ontario, Canada


ADDITIONAL EARTHQUAKE PARAMETERS
________________________________
event ID : US 2010xwa7


[edit on 23-6-2010 by Anmarie96]

[atsimg]http://files.abovetopsecret.com/images/member/7dfbab1f3bd3.gif[/atsimg]

Whats going on in yellowstone today?

www.isthisthingon.org...

!!!! Earthquake ??

reply to post by Anmarie96


Thats a big one for that area, I see on EMSC they have the depth at 2km, thats not a default.
Can't get Earthquakes Canada up on the Web, probably overloaded.
all I get is
"June 23 1:45 pm Eastern Time - A moderate earthquake has occurred in the Ottawa-Montreal region. More information to follow"

I think the 5.5 mb reading will stand, EMSC data is showing reading in the high 5's and low 6's ML

That 5.0 USGS is GS ( Goober Scale)

Full Moon in 3 days and Apogee ( furthest distance) Jul 28 23:51 405,954 km F+2d22h in 5 days !!

[edit on 23-6-2010 by muzzy]

Quite a few deep quakes in New Zealand yesterday, interesting line of minor ( 3.4's) between Tauranga and Taupo.
Also a 563.4km deep 5.5 mag quake near Fiji
2010/06/22 22:16:21 -19.184 -177.583

NZ Map 22nd June

reply to post by Austria


Absolutely no idea what that is. It is NOT the Canadian quake. You can see that here as the blue event, which is completely overshadowed by the green.

YLA.WY..EHZ.2010.174

It seems to be all through the park but I can find nothing that matches it for time.

Maybe they have not issued the details yet?

Edit: Actually I think it is the Canadian one ringing. The trace seems to be continuous. You can see it a bit more clearly on this plot YMS.WY..EHZ.2010.174

That seems an awful long time to all be one little 5.0 however so....???

Edit again: I am going nuts!! These recorders with 5 divisions instead of 4 confuse me. It does look as if that is all the one Canadian event.

[edit on 23/6/2010 by PuterMan]