The earthquake isn't going to do an Ivan, is it ?!

[Ivanova]

December 31 - 6.3 & 6.1 "aftershocks" ?!


The earthquake isn't going to do an Ivan, is it

http://neic.usgs.gov/neis/bulletin/neic_ssab.html


http://neic.usgs.gov/neis/bulletin/neic_ssap.html




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[Ivanova]

In the same region as the 6-1 & 6.3 aftershocks...
India's volcano is erupting.



Volcano erupts in Andaman Islands

INDIA's last active volcano, in the Andaman and Nicobar islands, has erupted in the aftermath of the earthquake that set off tsunamis killing thousands of people, official sources said today.


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[Aslkahuna]

The main shock was a MM9.0 so you are going to see a lot of aftershocks in the 6.0-7.0 range for a period of time. What's happening with the aftershock sequence seems pretty normal so far.

Steve

[coriolis]

keep in mind that a 7.0 is 1/100 of a 9.0 and a 6.0 is 1/1000. These are just echos of the main shock.

[Brent]

Don't freak out... it's just aftershocks.

[Cookiely]

Don't freak out... it's just aftershocks.

Brent,
Can aftershocks cause a tsunami?

[Brent]

Don't freak out... it's just aftershocks.

Brent,
Can aftershocks cause a tsunami?

If they are large enough... need to really be over 7.0 though, the higher the better.

Every strong quake won't cause one though.

[Cookiely]

Don't freak out... it's just aftershocks.

Brent,
Can aftershocks cause a tsunami?

If they are large enough... need to really be over 7.0 though, the higher the better.

Every strong quake won't cause one though.

Thanks. A Happy and joyful New Year to you and your family.

[Brent]

Don't freak out... it's just aftershocks.

Brent,
Can aftershocks cause a tsunami?

If they are large enough... need to really be over 7.0 though, the higher the better.

Every strong quake won't cause one though.

Thanks. A Happy and joyful New Year to you and your family.

You too.

Less than an half hour to go now.

[Ivanova]

Excuse me... but aren't "aftershocks" supposed to get
smaller and smaller in the days following the earthquake...


Magnitude 6.5 OFF W COAST OF NORTHERN SUMATRA

Saturday, January 01, 2005 at 06:25:44 UTC


http://neic.usgs.gov/neis/bulletin/neic_stak.html



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[yoda]

Not exactly. Aftershocks can be of any magnitude.

[Ivanova]

CNN had an interview with a scientist.
They asked him about the aftershocks...
he said the aftershocks might continue
for months... but will get smaller and
smaller...

These aftershocks get bigger and bigger !!


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[yoda]

CNN had an interview with a scientist.
They asked him about the aftershocks...
he said the aftershocks might continue
for months... but will get smaller and
smaller...

These aftershocks get bigger and bigger !!

IMO, he was mistaken. But I am not an expert.

[Ivanova]

IMO, he was mistaken. But I am not an expert.

Oh, I see... the scientist is mistaken...
but you are not an expert


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[yoda]

IMO, he was mistaken. But I am not an expert.

Oh, I see... the scientist is mistaken...
but you are not an expert


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That is why I said IMO... which is In My Opinion... that area is not my forte.

[Ivanova]

Aftershocks can trigger quake in Assam, US scientists caution:


[India News]: New Delhi, Jan 1 : Aftershocks of last week's killer quake off Sumatra are moving northwards and can potentially trigger a major earthquake in Assam, scientists in the United States have cautioned the Indian government.

The scientists at the Center for Earth Observing and Space Research in George Mason University in Virginia, who have been analysing the seismic data since December 26, have found the aftershocks moving towards north along 90-degree Ridge.

"If the sequence of these aftershocks moves further north then it may trigger a very big earthquake in Assam region which is expected by the scientists since long time", Ramesh P Singh, a member of the team and Vice Chairman of the International Union of Geodesy and Geophysics (IUGG) Risk Commission said.

Singh said the magnitude-5 earthquake on December 30 near Myanmar reported by the US Geological Survey was probably caused by the aftershocks. Its epicenter falls on the trajectory of the aftershocks.

Singh, who is on leave from Indian Institute of Technology (Kanpur) told PTI that "no big earthquake has occurred in Assam region for a long time and scientists believe that it is due any time".

"I am really afraid if the aftershock movement continues northward along the 90 degree east to the main boundary fault and main central thrust", Singh told PTI. "I hope it will subside. I am just alerting Government agencies", he said.

In Assam, India's Department of Science and Technology has established a GPS satellite network for monitoring crustal movements. Singh said he has requested government agencies to keep a close eye on aftershocks. PTI


http://www.newkerala.com/news-daily/new ... s&id=53425


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[Ivanova]

Aftershocks push up water level

Port Blair, December 31


The water level in the seas off Campbell Bay in the southern most island of Great Nicobar in the Andaman and Nicobar Islands is rising, posing further problems to the people who continue to be stranded there, and to the efforts being made by the services to reach rescue efforts.

Defence sources confirmed to The Tribune that the water levels had indeed risen over the last couple of days, and attribute it to both the continuing aftershocks in the region, and the quake off the Australian coast. Already devastated by the quake and tsunamis on 26th, the population there is being forced to move to higher ground, which is luckily available.

Unfortunately, though, the airstrip at Campbell Bay is being affected, with waters swirling in, and which increase at high tide. All but the most skillful pilots of the Indian Air Force AN-32s and Dorniers are managing to land. About four sorties were conducted today.



Click URL for entire article

http://www.tribuneindia.com/2005/20050101/main1.htm


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[Aslkahuna]

It's more likely land subsidence rather than sea level rises. Such effects are common with great subduction zone earthquakes where there are significant changes in the height of the landmass both up an down. Land along the coasts of Alaska and Chile dropped as much as 5m or more in the wake of the big subduction zone shocks there in the 1960's and in other areas an equally as large rise occurred. As for the aftershocks, as I said before the sequence seems pretty normal for a main shock of this size. We can expect to see aftershocks in the 6-7 range continue for a while longer.

Steve

[Brent]

Excuse me... but aren't "aftershocks" supposed to get
smaller and smaller in the days following the earthquake...


Magnitude 6.5 OFF W COAST OF NORTHERN SUMATRA

Saturday, January 01, 2005 at 06:25:44 UTC


http://neic.usgs.gov/neis/bulletin/neic_stak.html



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Take a deep breath... IT'S NOT A BIG DEAL! IT'S NORMAL!

[kevin]

I'd be more worried about the rain...