Mag 6.9 SE of Taiwan

USGS Link

Magnitude 6.9
Date-Time Monday, April 26, 2010 at 02:59:50 UTC
Monday, April 26, 2010 at 10:59:50 AM at epicenter
Time of Earthquake in other Time Zones

Location 22.247°N, 123.733°E
Depth 10 km (6.2 miles) set by location program
Region SOUTHEAST OF TAIWAN
Distances 245 km (150 miles) SSW of Ishigaki-jima, Ryukyu Islands, Japan
270 km (170 miles) ESE of T'ai-tung, Taiwan
270 km (170 miles) NE of Basco, Batan Islands, Philippines
2145 km (1340 miles) SW of TOKYO, Japan

Location Uncertainty horizontal +/- 5.5 km (3.4 miles); depth fixed by location program
Parameters NST= 73, Nph= 73, Dmin=257.1 km, Rmss=1.18 sec, Gp= 32°,
M-type=teleseismic moment magnitude (Mw), Version=6
Source USGS NEIC (WDCS-D)


Event ID us2010vnag

Still no reports of damage.
Hope it's true.

read more here:

www.reuters.com

Looks like no tsunami risk for hawaii so far:

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
510 PM HST SUN APR 25 2010

TO - CIVIL DEFENSE IN THE STATE OF HAWAII

SUBJECT - TSUNAMI INFORMATION

THIS STATEMENT IS FOR INFORMATION ONLY. NO ACTION REQUIRED.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 0500 PM HST 25 APR 2010
COORDINATES - 22.4 NORTH 124.0 EAST
LOCATION - SOUTHEAST OF TAIWAN
MAGNITUDE - 6.5 MOMENT

EVALUATION

BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A
DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS NOT EXPECTED AND THERE IS NO
TSUNAMI THREAT TO HAWAII.

THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
ADDITIONAL DATA ARE RECEIVED.



[edit on 25-4-2010 by westcoast]

I will post this in both threads since they were posted simultaneously.

Ouch. 6.9

Here we go again.

I wonder what is really the scope of all of this?

There were no tsunami warnings issued but the Pacific Tsunami Warning Center said local tsunamis on coastlines within 100 km (60 miles) of the quake's centre were possible.

tvnz.co.nz...

I wouldn't say "here we go again" just yet. It's been pretty darned quiet for a couple of weeks now. One more above 6.5 in a 24 hour period and then I'd say it's getting interesting again.

I'm glad this one seems to have struck far from civilization.

reply to post by quakewatcher


Yep, we were due...

Remember peeps, over the course of a year an average of 11 6 - 6.9's can be expected each MONTH.

earthquake.usgs.gov...

[edit on 25-4-2010 by MoorfNZ]

Originally posted by quakewatcher
I wouldn't say "here we go again" just yet. It's been pretty darned quiet for a couple of weeks now. One more above 6.5 in a 24 hour period and then I'd say it's getting interesting again.

I'm glad this one seems to have struck far from civilization.

No I mean "here we go again" as in watch the same old clichés appear in this thread.

You know, HAARP this and Nibiru that.

I think it is safe to say "here we go again" right off the bat.

You misunderstood my humor.

reply to post by muzzleflash


Well, it is a conspiracy site!

Did wonder when the H word would appear, though

It seems to have been downgraded to a 6.5, which is still pretty bad. I hope there wasn't too much damage done to the areas it hit.

Gosh darn boobquakers.... it's all because of them!
Make them stop!!

www.abovetopsecret.com...

(sorry, couldn't resist!)

Originally posted by SonicInfinity
It seems to have been downgraded to a 6.5, which is still pretty bad. I hope there wasn't too much damage done to the areas it hit.

Your concern is admirable, and I am not knocking that in any way at all, but please do look at the details of the event first.

Whether this was a 6.9 or a 6.5 is not really an issue, although a 6.9 is 2.51 times bigger than a 6.9 and in released energy terms is 3.98 times stronger. My main point is that despite the depth, which I believe was revised from 10 to 22Km as well, this event took place in a deep trench which is already over 5000m (5Km) below the surface of the ocean.

With the very steep walls of the trench there would be a mitigation of the potential effects. This is why the shake map is showing the intensity as Mercalli scale 4, as opposed to the RSOE calculation of 8 which was computer calculated an took no account of the location.

Please do continue with the concern about events like this, but also learn more about earthquakes and their effects, even if only for your own peace of mind.

Just as an example, when I saw this I was not concerned. Had this been around Mexico City for instance, I would have been extremely concerned as the geology of the area can magnify the effects of a quake as much as 75 times. Another example is the difference in intensity between the Cascades area and East of there. East of the Cascades earthquakes tend to be felt more. (Note we are talking intensity as perceived by humans rather than strength as measured by seismographs)