Magnitude 9.0 Earthquake - OFF THE WEST COAST OF NORTHERN SUMATRA

USGS Earthquake Hazards ^ | 2004 December 26 00:58:55 UTC

[bd476]

Magnitude 8.1 - OFF THE WEST COAST OF NORTHERN SUMATRA
2004 December 26 00:58:55 UTC

Preliminary Earthquake Report
West Coast and Alaska Tsunami Warning Center/NOAA/NWS

A great earthquake occurred at 00:58:55 (UTC) on Sunday, December 26, 2004. The magnitude 8.1 event has been located OFF THE WEST COAST OF NORTHERN SUMATRA. (This event has been reviewed by a seismologist.)

Magnitude	8.1
Date-Time	Sunday, December 26, 2004 at 00:58:55 (UTC) = Coordinated Universal Time Sunday, December 26, 2004 at 6:58:55 AM = local time at epicenter
Location	3.400°N, 95.700°E
Depth	40 km (24.9 miles) set by location program
Region	OFF THE WEST COAST OF NORTHERN SUMATRA
Distances	235 km (145 miles) S of Banda Aceh, Sumatra, Indonesia 330 km (205 miles) W of Medan, Sumatra, Indonesia 1620 km (1000 miles) NW of JAKARTA, Java, Indonesia 3405 km (2120 miles) SE of NEW DELHI, Delhi, India
Location Uncertainty	Error estimate not available
Parameters	Nst=020, Nph=020, Dmin=>999 km, Rmss=0.98 sec, Gp=101°, M-type=moment magnitude (Mw), Version=1
Source	West Coast and Alaska Tsunami Warning Center/NOAA/NWS
Event ID	at00000264

Location Maps: 10-degree NEIC Maps Did you feel it? Report shaking and damage at your location. You can also view a map displaying accumulated data from your report and others. Historical Moment Tensor Solutions Seismic Hazard Map Historical Seismicity Theoretical P-Wave Travel Times Magnitude 7 and Greater Earthquakes This Year TsunamiBulletin Archive of newsworthy events

[bd476]

[bd476]

A new 8.1 quake Ping.

[razorback-bert]

I go Hmmm!

24 December 2004



SYDNEY - The world’s biggest earthquake in almost four years, measuring 8.1 on the Richter scale, struck off the coast of Australia’s southern island state of Tasmania on early Friday, but caused no damage or injury.

[bd476]

[Rabid Dog]

Holy Smokes!

[bd476]

Second 8.1 in as many days. Magnitude 8.1 North of Macquerie Island

[bd476]

LOL! Indeed. Imagine that here... no please - forget I said that.

Merry Christmas! Hope all is well. We're freezing here - are you getting any of these chilly Santa Ana winds there?

[expatguy]

Wow that is a monster!

[razorback-bert]

A 3.2 in New Zealand three hours ago.

[expatguy]

Earth Quake Magnitudes

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

Great = > 8

Major = 7 to 7.9

Strong = 6 to 6.9

Moderate = 5 to 5.9

Light = 4 to 4.9

Minor = Less than 3.9

[txhurl]

Sh*t, that's huge.

[Ironclad]

"Hugh" on FR.

[mathprof]

Global warming at work!

[Arkie2]

It's Bush's fault!

[txhurl]

but caused no damage or injury.

There must not be any structures or life there.

[LasVegasMac]

Sh*t, that's huge.

That would qualify as the 'understatement of the day'.

I've felt a 7. I'm in Las Vegas and that thing went off in So Cal. And I mean to tell ya - we FELT it! Hanging speakers whacking the wall, water sloshing out of the pool, etc.

Have you ever seen / read the first hand accounts of the big one in Alaska? Ground in continuous motion for 4 - 5 minutes, etc.?

I could not imagine being really close to something of that immense power. Hard for the mind to comprehend something like that, ya know?

LVM

[Raffus]

or a vast right conspiracy.

[dufekin]

Well, Al Gore was planning a trip to Victoria, Texas to make a not-so-white Christmas Day speech to blame the general lack of snow cover on President Bush's global-warming policies. He missed that speech and an earlier speaking engagement in Cincinnati (to blame the general lack of blizzards on the President). He was unable to extricate his car from his Tennessee driveway--even with the help of his entire Secret Service detail--because of excessive ice accretion, which he would have blamed on the President's global-warming policy if the storm had not knocked out telephone service to his estate.

(sarcasm...really)

[GRRRRR]

Oh is THAT what that was? I thought my hugh sisinlaw fell down...LOL, snark...that's funny....

Tidal wave anyone?

[Lokibob]

 

 

 

Here is what it looks like on the seismometer I watch in Utah (it's a honker)!!!:

 

 

 

[Godebert]

Wow.....

I wonder if this one will generate a Tsunami?

[commonguymd]

Readings from Utah - wow.

[commonguymd]

http://abcnews.go.com/International/wireStory?id=359816

[Boundless]

It's been revised to an 8.5

http://earthquake.usgs.gov/recenteqsww/Quakes/usslav.htm

[Cold Heart]

BTTT

[NautiNurse]

After a relatively quiet year--there were five Mag 7+ quakes in November, and now 2 Mag 8.1 in as many days.

[Godebert]

EVALUATION

REVISED MAGNITUDE BASED ON ANALYSIS OF MANTLE WAVES. THIS EARTHQUAKE IS LOCATED OUTSIDE THE PACIFIC. NO DESTRUCTIVE TSUNAMI THREAT EXISTS FOR THE PACIFIC BASIN BASED ON HISTORICAL EARTHQUAKE AND TSUNAMI DATA.

THERE IS THE POSSIBILITY OF A TSUNAMI NEAR THE EPICENTER.

[Lokibob]

I suppose we are going to hear from the person that says major earthquakes ALWAYS occur during full moons, since we have a full moon tonite.

[F.J. Mitchell]

LOL! Earth quakes being caused by faults-having the fault that caused an 8.1 named after someone should be deemed an honor by that someone.

[txhurl]

_Jim? He's busy on another thread.

[Quix]

I suppose.

When was the one between New Zealand and Antarctica--a day or two ago?

[Bahbah]

Wow, that gives one a perspective.

[bd476]

Surf's up again here on this thread. This is now an 8.5 quake.

[bd476]

Yep, it's pretty startling. And you and your neighbors have had a very, very rough year. Hope next year is much better.

Merry Christmas, NautiNurse!

[bd476]

Thank you and good catch, Boundless. That's a very significant jump in magnitude.

[bd476]

Thank you for the news link, Commonguymd.

[bd476]

Whew, Lokibob. That's a very shaky graph. Thanks for posting it.

[commonguymd]

This report seems to be one of the first reported. It was reported as 6.4 on the island.

[commonguymd]

http://www.channelnewsasia.com/stories/afp_asiapacific/view/124051/1/.html

forgot the link

[bd476]

It's now been revised from an earlier reading of 8.1 to 8.5. Local tsunamis are possible, but far ranging tsunamis are not predicted.

[Lokibob]

Look back at the seismometer chart, it is updating in a real near time basis. the earth continues to ring even an hour after the event. I have not seen this many echos on an EQ.

[bd476]

Yeah, well I assume you're kidding but some of us in Southern California have seen an increase in large quakes during Santa Ana conditions. It may be perceptual.

[bd476]

From past experience, the mainstream media will be filtering in new reports for the next 24 hours.

[bd476]

Sure is. It's now been revised upward from 8.1 to 8.5. Big boom.

[bd476]

If they called it anything but "great" it would be more fitting. Monstrous, Extra large... something like that. :)

[Quix]

How would you rate the increase in echos? X's or in %?

[bd476]

Exactly, it's a monster quake. There's nothing "great" about it. :)

[bd476]

Lokibob said: "Look back at the seismometer chart, it is updating in a real near time basis. the earth continues to ring even an hour after the event. I have not seen this many echos on an EQ."

Thanks, and please keep us updated, Lokibob.

[bd476]

Ping.