Is Japan At Risk Of Another Great Quake?

reply to post by westcoast


West, this has actually been typical of a lot of these quakes in Japan, even though they may be lower in magnitude. They have really long decays. There were several others that were longer, and many just as long.

reply to post by TrueAmerican


Well that is good to know. Have you seen it go non-stop for 30 minutes before?

The second one is being called a 5.3, further to the south like I thought.

Magnitude 5.3
Date-Time Thursday, March 17, 2011 at 06:24:31 UTC
Thursday, March 17, 2011 at 03:24:31 PM at epicenter

Location 37.249°N, 142.293°E
Depth 24.9 km (15.5 miles)
Region OFF THE EAST COAST OF HONSHU, JAPAN
Distances 125 km (78 miles) E (80°) from Iwaki, Honshu, Japan
167 km (104 miles) SE (131°) from Sendai, Honshu, Japan
170 km (106 miles) ESE (108°) from Fukushima, Honshu, Japan
287 km (179 miles) NE (52°) from TOKYO, Japan

Location Uncertainty horizontal +/- 15.5 km (9.6 miles); depth +/- 0.3 km (0.2 miles)
Parameters NST=270, Nph=273, Dmin=372.9 km, Rmss=0.95 sec, Gp= 94°,
M-type=body wave magnitude (Mb), Version=8
Source U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver

Event ID usc00024yx


ETA: It is STILL going, and there was just another quake, probably around a 4.7 about in the middle. You have seen this before TA??

Here is another screenshot..the second one and now the begining of the third...constant.

They are calling the third one a 5.2


Magnitude 5.2
Date-Time Thursday, March 17, 2011 at 06:42:46 UTC
Thursday, March 17, 2011 at 04:42:46 PM at epicenter

Location 38.709°N, 143.911°E
Depth 36.4 km (22.6 miles)
Region OFF THE EAST COAST OF HONSHU, JAPAN
Distances 264 km (164 miles) ESE (114°) from Morioka, Honshu, Japan
268 km (167 miles) ENE (78°) from Sendai, Honshu, Japan
287 km (178 miles) SE (133°) from Hachinohe, Honshu, Japan
500 km (311 miles) NE (46°) from TOKYO, Japan

Location Uncertainty horizontal +/- 19.2 km (11.9 miles); depth +/- 1.7 km (1.1 miles)
Parameters NST=109, Nph=110, Dmin=372.9 km, Rmss=0.62 sec, Gp=119°,
M-type=body wave magnitude (Mb), Version=5
Source U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver

Event ID usc00024z7



It is still going....

Do you think that the series in Honshu minutes after the 6.3 in Vanuatu are related?

It's eerie when I look at my QuakeFeed app (not the best, I know but it's portable for my iphone) and I see a 4.8 1 minute after the 6.3 followed by a few others.

I would be quite unnerved by the long decay aftershocks if I were in the area.

reply to post by jadedANDcynical


Who know at this point? Frankly, I think that at this point they don't need anything else to affect them...they have plenty going on there with those converging plates.

Looks like I was closer than I though...they went back and added the 4.6, looks like the 5.2 was the last one. Looks to be finally settling down. Check it out:

MAP 5.2 2011/03/17 06:42:46 38.709 143.911 36.4 OFF THE EAST COAST OF HONSHU, JAPAN
MAP 5.3 2011/03/17 06:24:32 37.249 142.293 24.9 OFF THE EAST COAST OF HONSHU, JAPAN
MAP 4.6 2011/03/17 06:19:42 37.598 143.462 25.0 OFF THE EAST COAST OF HONSHU, JAPAN
MAP 5.7 2011/03/17 06:12:43 37.755 143.451 25.0 OFF THE EAST COAST OF HONSHU, JAPAN



Magnitude 4.6
Date-Time Thursday, March 17, 2011 at 06:19:42 UTC
Thursday, March 17, 2011 at 04:19:42 PM at epicenter

Location 37.598°N, 143.462°E
Depth 25 km (15.5 miles) set by location program
Region OFF THE EAST COAST OF HONSHU, JAPAN
Distances 234 km (146 miles) ENE (75°) from Iwaki, Honshu, Japan
238 km (148 miles) ESE (107°) from Sendai, Honshu, Japan
264 km (164 miles) E (92°) from Fukushima, Honshu, Japan
395 km (245 miles) NE (56°) from TOKYO, Japan

Location Uncertainty horizontal +/- 22.8 km (14.2 miles); depth fixed by location program
Parameters NST= 34, Nph= 36, Dmin=482 km, Rmss=0.82 sec, Gp=137°,
M-type=body wave magnitude (Mb), Version=4
Source U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver

Event ID usc00024yv


SOURCE


So there was activity the whole time during these quakes...I can't imagine what it must feel like to be close to that.

reply to post by westcoast


OMG that is unreal i would be terrified.....I wonder if these quakes as well as the nuclear ARE the reason the USA is telling all americans to leave now and they are providing planes to help....This was on ch 7 news bay area ca.tonight.11pm pst

Can you tell me if the world is having more earthquakes than normal in many areas.....I have never read a map until recent and there sure seems to be SO many everywhere, and poor Japan is getting the brunt of them all.

reply to post by westcoast


WC thank you for posting your findings!! I didn't know about the predicted and prepared for "Great Tokai Earthquake". Very interesting.

Guess what else? I was looking at the "super volcano" Southwest of Tokyo when I found your thread here. I didn't even know you had started this thread so I was going to go look for TA's thread on the a similar topic. But I found yours first and read the OP and well, I think it fits better here.

Mount Aso
hisz.rsoe.hu...

Also I hadn't known that Mt. Aho even existed until last night. It might have nothing to do with the "Great Tokai Earthquake" but thought it uncanny that it's located SW of Tokyo and the last EQ was in Feb. 2011, according to RSOE.

I have a question for you. Why is there no info on the Feb. quake? I'm no quake or super volcano expert by any stretch of the imagination but I would think that someone reviewed the quake and should have reported something?

Don't mean to scaremonger, maybe a 4.6 at a super volcano in that part of Asia is not a big deal?

Thanks!

Toni

reply to post by Antoniastar


Wow...no, I didn't know:

Mount Aso is the largest active volcano in Japan, and is among the largest in the world. It stands in Kumamoto Prefecture, on the island of Kyushu. Its peak is 1592 m above sea level. Aso has one of the largest caldera in the world (25 km north-south and 18 km east-west).[1] The caldera has a circumference of around 120 km (75 miles), although sources vary on the exact distance. The central cone group of Aso consists of five peaks: Mt. Neko, Mt. Taka, Mt. Naka, Mt. Eboshi, and Mt. Kishima. The highest point is the summit of Mt. Taka, at 1592 m above sea level. The crater of Mt. Naka, the west side of which is accessible by road, contains an active volcano which continuously emits smoke and has occasional eruptions.

SOURCE

Here is the info on the quake in feb:

PDE-Q 2011 02 28 000442.68 33.15 131.57 64 4.6 mbGS

From what I can tell, the current quakes are well North of there...let's hope that giant stays asleep!

Thanks for the info!

reply to post by StarLightStarBright2


StarLightStarBight2, hi and thank you for posting about the evac. I hadn't heard about it. It could be due to a next Japan quake or it could just be due to radiation from the reactors. So it's a good thing to keep an eye or two on.

Washington DC - The United States on Wednesday authorized the first evacuations of Americans out of Japan, taking a tougher stand on the deepening nuclear crisis and warning U.S. citizens to defer all non-essential travel to any part of the country as unpredictable weather and wind conditions risked spreading radioactive contamination.

Read full article here:
US Evacuating Americans Out Of Japan

Toni

Sure hope not according to this article but .mmm....
news.nationalgeographic.com...

"Most earthquakes occur on preexisting tectonic lines, and the vast majority do occur as a result of geophysical processes, but there may be some correlation [between the moon] and earthquakes," Chester said. For example, he said that in general there is a higher incidence of earthquake activity in the Northern Hemisphere when the moon is north of the Equator and an increase in earthquake activity in the Southern Hemisphere when the moon is south of the Equator. The moon's orbit is inclined in relation to the Earth, causing the moon's position in the sky to nod north and south on an 18.6-year cycle.

Well supermoon just got a whole new meaning 19th march.

peace gringo
No probs been known of sorts since jan 9th to happen somewhere and more for nowwww.realnewsreporter.com...

Posted by Real News Reporter on March 12th, 2011 A new report released today in the Kremlin prepared for Prime Minister Putin by the Institute of Physics of the Earth, in Moscow, is warning that the America’s are in danger of suffering a mega-quake of catastrophic proportions during the next fortnight (14 days) with a specific emphasis being placed on the United States, Mexico, Central America and South American west coast regions along with the New Madrid Fault Zone region.

reply to post by westcoast


WC thank you for posting the data on Mt. Aso supervolcano.

At least 75 miles around? Uhmm...

From what I can tell, the current quakes are well North of there...let's hope that giant stays asleep!

Yeah I noticed. Stay asleep stay asleep Mt. Aso you are very sleepy.

Oh hey! Guess what?!! Check out what happened when I queried this search parameter!

mount aso Great Tokai earthquake

reply to post by gringoboy


Oh yeah the Supermoon. That could be how the Japanese "predicted" the Great Tokai earthquake???

I don't know, I really don't.

I'll check out the vid. Thanks!

Extremely strange, large signature on japan GEE station right now.....only showing on one though, so hopefully it is not real

Okay, here is a screen shot:





As you can see, at 400 microns it is HUGE. However, it is only showing up on the lateral/horizontal station, not the vertical and on only the station to the south. So it makes me think it was caused by something local to it. USGS is listing the quake that happened right after it at 4.8