Quake Watch 2011

reply to post by muzzy


Yes, it's been a pleasant respite. I feared that if we got a decent 'quake while the snow was/is here it would have been a horrible situation.

reply to post by PuterMan


Even though I live near Winnipeg Canada, which is the middle of the continent, I don't think I should be the center of the map. I like the Ring of Fire map as the "official world map".

The Prime Meridian should run through Guam.

Either that or Hawaii.

reply to post by muzzy


I had a look at your map and found the Christchurch quakes, but in doing so I passed over a circular feature on the map. I hope this will nor be considered off topic but it was Egmont National Park. Mt Egmont last erupted in 1854 so it has been sleeping a while. What was totally amazing was believe it or not the near perfect circle of forest around the mountain.

If you have Google earth this KMZ file takes you to above the mountain at the right height to appreciate the circular forest. Just how do you get such a perfect 12 mile diameter circle? Stand someone on the top with a 6 mile long piece of string and have someone else walk around it?

Here is a picture in case you don't have Google Earth (!)

reply to post by Robin Marks


Guam. I like that one. You get a very good International Dateline from that one with very few dog legs. Only a small part of South America and and even smaller part of Greenland, provided you make the Guam side the Prime and the other side the Anti - almost a complete 180 shift! Well about 150 actually.

Hawaii is a complete no-no. It would split Africa right in half. Very impractical.

reply to post by angelchemuel


Here you go

I said "Watch EMSC reclassify this as Mw."

They did but as a 6.0 Mw. Now bearing in mind that both had it as a 6.2 Mb and the average of the Mbs was fractionally over 6.2 I think EMSC are being a bit enthusiastic. Could come down again to 5.9. They do like to play around with these for quite some time afterwards.

reply to post by PuterMan

Yeah its pretty amazing alright, and to think that Forest Park edge was probably set out before GPS and Laser measuring.

DId you know Mt Egmont/Taranaki was a standin for Mt. Fuji on the Last Samurai movie?

On a really clear and calm day we can see it from Raumati Beach, its just a tiny white point that breaks the horizon.
When Mt. Ruapehu erupted in 1995/6 we could see the ash cloud from here too.

reply to post by Robin Marks


I played around a lot with the positioning of the world map when I was starting my Mag7+ Project, and it ended up being Pacific centred. (27.063564, 162.432338 to be precise, just SE of Busch Seamount)
This captures the majority of the worlds earthquakes within easy view, the only region that can split the egdes is the southern atlantic and iceland, and there aren't that many up or down there in proportion to the overall total. Captures Africa in one hit too.
I chose the Terrain option as the opening map as it was cleaner without the international date line, but heres as screenshot of the "Map" version, for 2011 Mag7+ quakes.

I was also constrained by the width of the page I was putting the map onto, 500pixels

reply to post by muzzy


i pick " i "
no dought what so ever,, and when it does, it will be at a fault line ,which splits, Jerusalem, ,,city,,

into the three major fault lines in that area.

if something dosn't blow first.
yes a prediction

Yay!!! A 6.2

Magnitude 6.2
Date-Time

Wednesday, August 17, 2011 at 11:44:07 UTC
Wednesday, August 17, 2011 at 09:44:07 PM at epicenter
Time of Earthquake in other Time Zones

Location 36.623°N, 144.257°E
Depth 37 km (23.0 miles)
Region OFF THE EAST COAST OF HONSHU, JAPAN
Distances 304 km (188 miles) E of Iwaki, Honshu, Japan
339 km (210 miles) E of Mito, Honshu, Japan
349 km (216 miles) ESE of Sendai, Honshu, Japan
418 km (259 miles) ENE of TOKYO, Japan
Location Uncertainty horizontal +/- 27.4 km (17.0 miles); depth +/- 12.8 km (8.0 miles)
Parameters NST= 23, Nph= 25, Dmin=542.1 km, Rmss=0.97 sec, Gp=198°,
M-type=regional moment magnitude (Mw), Version=7
Source

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

Event ID usc0005fj1

earthquake.usgs.gov...

reply to post by PuterMan


I was wondering when Japan was going to have a 6+! You could definitely see it coming the last couple of days.

Now.....we see whats next.

PDF Package for Magnitude 6.2 Off E. Coast Honshu. Japan usc0005fj1 now available. (1.5 Mb download)
usc0005fj1.zip

Web site images only (554 Kb download)
usc0005fj1_images.zip

View web version of page here

reply to post by PuterMan


They already have it as a 6.1 at EMSC
www.emsc-csem.org...

Rainbows
Jane

reply to post by angelchemuel


Yes both Mw so they probably won't change.

An earthquake has been lifted from 5.7 to 6.0 right in the middle of the 6-free days

Date/Time UTC,Latitude,Longitude,Magnitude,Depth(Km),Location
2011-08-10 23:45:42, -7.181, -12.663, 5.7, 9.4, Ascension Island Region

This was the original details

Please be aware that this link is unlikely to survive beyond today. The 6.0 version is in limbo (no links) at present as often happens to the quakes on the first day of the 8 - 30 days list. Tomorrow the links will appear but they will be to the NEIC version and the on above will 404.

I will post the details tomorrow when available.

reply to post by PuterMan


Wonder if they'll UPdate the other questionable ones that they have been 'playing around' with?



This 6.1/6.2 isn't even showing on EDIS!!! Hmmmm???
Rainbows
Jane

reply to post by angelchemuel


Here is the current list of changes over the last 30 days

[atsimg]http://files.abovetopsecret.com/images/member/fa579d9ca075.png[/atsimg]

The 5.9 lifted to 6 at the end of last month is Gulf Of California.

Yah Boo Sucks, told you so. Well 6.0 instead of 6.1 but I knew it would go up.

reply to post by angelchemuel


Still not showing on RSOE. Now I have decontaminated my computer I see it is showing on the Russian site as a 6.3 Ms (almost the equivalent of Mw)

It is on Live Earthquake Mashup as well.

I had a comment left on QVSData about a FREE program called Seismic/Eruptions.

The video below is a screen shot the commenter took of the program



More details in the comment

I have not looked at it yet but it looks interesting, and odd this should turn up now after I did that GIF.

WARNING: The installer is very badly behaved. I splatters yours desktop with three icons without even asking and fails to make an entry in the programs menu, and then it freezes!! It does close if you click the X

4.7 aftershock?

www.emsc-csem.org...

Rainbows
Jane

That Honshu quake last night NZST showed up good on SNZO, definitely a Mag 6 IMO

Just going back over the graphs and lists on the Mag7+ Project, converting the bar graphs to timeline graphs and adding the magnitude types to the lists, and was on 1968 when I noticed this

8.2 Mw, 1968/5/16 0:49:0.41, 40.903, 143.346, 25.8, o/s E of Honshu, Japan, p&s
7.8 Mw, 1968/5/16 10:39:0.52, 41.593, 142.786, 11.8, o/s E of Honshu, Japan, p&s
7.2 Unk, 1968/5/16 23:4:52.45, 39.881, 143.223, 8.3, o/s E of Honshu, Japan, b&d
7.3 Ms, 1968/6/12 13:41:51.01, 39.501, 142.893, 31.2, o/s E of Honshu, Japan, p&s
7.0 Unk, 1968/6/17 11:53:1.56, 41.095, 143.072, 37.2, o/s E of Honshu, Japan, b&d
[p&s] Catalog of worldwide earthquakes with Ms 7.0> 1900-1989 Pacheco and Sykes (1992)
[b&d] Catalogue of large earthquakes 1897-1977, Bath and Duda (1979)

Compare that to this years Honshu events

7.2 Mw, 2011/3/9 02:45:20.27, 38.424, 142.836, 32, o/s Honshu, Japan, usgs/neic
9.0 Mw, 2011/3/11 05:46:00, 38.322, 142.369, 24.4, Near the East Coast Of Honshu, Japan, usgs/neic
7.8 Ms, 2011/3/11 06:15:45.94, 36.126, 140.234, 30.2, Ibaraki, Honshu, Japan, usgs/neic
7.3 mb, 2011/3/11 06:25:00, 38.106, 144.553, 19.7, Off The East Coast Of Honshu, Japan, usgs/neic
7.2 Ms, 2011/4/7 12:32:41, 38.253, 141.64, 25.6, Near the East Coast of Honshu, Japan, usgs/neic
7.0 Mw, 2011/7/10 00:57:10.1, 38.04, 143.25, 34.9, Off the East coast of Honshu, Japan, usgs/neic

Interesting how an 8.2 created 4 aftershocks over Mag 7, as many as the Mag 9 this year
Perhaps there is another Mag 7 or two due for Honshu yet

Admittedly the 1968 events were a bit further north than 2011's, closer to Hokkaido, so maybe a different plate structure there.
I wonder if there have been more Mag 6-6.9 aftershocks from the 9.0 than the 1968 8.2? (I'll go have a look)




Had a quick look on the Centennial List (I haven't processed > Mag 7 before)
Interesting only the 2 officially (but some of those 5.8+mb's could possibly be converted to 6+ Mw) , I would have expected more, perhaps the Mag 7's dissipated all the energy in 1968, whereas this years 9.0 has dissipated the energy more through Mag 6's and 5's.

6.2 Ms, 1968/5/24 14:6:25.27, 40.953, 143.092, 29.4, o/s E of Honshu, Japan, uscgs
6.1 Ms, 1968/10/7 20:49:5.86, 42.002, 142.519, 52.8, o/s E of Honshu, Japan, uscgs
5.9 mb, 1968/11/24 21:21:1.55, 40.313, 142.338, 49.3, o/s E of Honshu, Japan, isc
5.9 mb, 1968/11/11 14:41:16.8, 40.164, 143.187, 27.1, o/s E of Honshu, Japan, uscgs
5.9 mb, 1968/5/22 10:51:55.78, 41.566, 142.837, 44, o/s E of Honshu, Japan, uscgs
5.8 mb, 1968/5/16 18:43:22.68, 40.789, 142.133, 56.6, o/s E of Honshu, Japan, isc
5.8 Ms, 1968/11/13 18:41:49.68, 40.195, 142.573, 46.6, o/s E of Honshu, Japan, uscgs
5.7 mb, 1968/5/16 1:4:55.69, 40.993, 143.254, 26.9, o/s E of Honshu, Japan, isc
5.7 mb, 1968/5/16 6:36:53.61, 41.118, 143.009, 41.9, o/s E of Honshu, Japan, uscgs
5.6 mb, 1968/6/22 1:12:33.42, 40.374, 143.701, 16.9, o/s E of Honshu, Japan, uscgs
5.6 mb, 1968/5/16 20:22:16.64, 41.484, 142.683, 34.5, o/s E of Honshu, Japan, uscgs
5.6 mb, 1968/5/17 13:2:39.43, 41.493, 142.856, 45.5, o/s E of Honshu, Japan, uscgs
[isc] Hypocenters and magnitudes from bulletins by International Seismological Centre, Newbury, UK (1964-1998)
[uscgs] U.S. Coast and Geodetic Survey

another observation while revising the Project (1950 -1976 so far), where I'm adding the text to the graphs on quakes above 7.5, is the Philippines crops up a lot.
They haven't had a mag 7+ there for over a year
7.4 Mw, 2010/7/23 15:9:, 6.792, 123.282, 631.2, Moro Gulf, Philippines, usgs

could be due one?

Nevada 3.7 Is this the biggest yet for that area this year? I believe so.

earthquake.usgs.gov...