[topher]

The point of this is to take a snapshot of activity from 12-24-04 to 12-30-04. It shows the number of quakes in this area and worldwide activity. The activity in the rest of the world pales by comparison even today. Below are the quake list with [number of quakes] followed by [magnitude].

Data on this webpage will change over time.

This is a sliding window, so we will loose the data before the time of the earthquake if not posted.

Summary of quakes in 9.0 area:

12-30-04 -> five 5+ earthquakes and one 4.9 earthquake

12-29-04 -> two 6+ earthquakes and three 5+ earthquakes

12-28-04 -> twelve 5+ earthquakes and three 4+ earthquakes

12-27-04 -> two 6+, twenty 5+, nine 4+ earthquakes

12-26-04 -> one 9.0, one 7.1, six 6+, and twenty-five 5+ earthquakes

12-25-04 -> one 4.7 in Halmahera, Indonesia

12-24-04 -> one 4.5 in Java, Indonesia

Note that there is a revision here -- the 7.1 in the quake area on December 26, 2004 was once listed as 7.5 quake.

[Barte45]

Doesn't the world experience a ton of seismic activity during the course of a day? And isn't most of it not even noticeable, even 4 and 5.0?

[Strategerist]

Really big quakes have big aftershocks.

[PennsylvaniaMom]

Not to ask a dumb question, but can the aftershocks (in the Sumatra area) cause subsequent tsunami(s)?

[b4its2late]

I wonder if we'll see a new volcano or island chain formed in that region?

[Ginifer]

I read a newspaper article today from Russia that said a Russian seismologist said the next big earthquake would be in the South American region according to his calculations.

Interesting post seeing all the activity before and after.

http://www.hwn.org/home/atlantic.html
http://earthquake.usgs.gov/recenteqsww

and if your interested in volcano activity:

http://volcano.und.nodak.edu/vwdocs/current_volcs/current.html

[notpoliticallycorewrecked]

It almost looks like the two Indonesian quakes on the 24th and 25th were prequakes. But they could also be a shift in other faults that caused the pressure to cause that 9.0.

[BoBToMatoE]

I wonder if the Saint Helens action resulted from any of this ring of fire action.

[Cold Heart]

I like to look at the map of North West (US) earthquakes on a daily basis. It's almost like hunting, trying to get a red one (within two hours). I find the history patterns (two weeks)interesting. Couple years ago I saw a different pattern that caught my eye. Ended up with that big one in puget sound. I have often wondered if anyone at the universities is following these histories and recognizing any patterns.

[Quix]

THANKS MUCH.

Have long wanted to print out my listing of such in my email program but can't figure out how to print the listing of emails by subject line etc. such as you've done.

[Tigen]

http://aslwww.cr.usgs.gov/Seismic_Data/heli2.shtml
Todays incoming is very quiet compared to the last weeks data.
All of these windows were almost black a week ago!

[Elvis van Foster]

They've determined the cause on DU: oil companies drilling and secret nuclear tests that avoid seismic detection.

I kid you not.

[P.O.E.]

Massive earthquake shakes island

December 24, 2004

THE world's biggest earthquake in almost four years has struck 800km off the coast of Tasmania, Australian seismological officials said. Geoscience Australia said the quake, measuring 8.1 on the Richter Scale, hit the Macquarie Rise in the Pacific Ocean at 1.59am (AEDT).

The earthquake, which occurred half-way between Australia and Antarctica, was felt throughout Tasmania, seismologist Cvetan Sinadinovski said.

[topher]

Some group is claiming these aftershocks may have a bad result. I won't speculate. This is Assam that I am referring to. This is a wait and see if they are correct.

Only point to post is make people alert in that area.

Right now, the aftershocks are terrifying people who have survived the tsunami.