Skip to comments.Asia tsunami quake stronger than first thought(not 9.0 but 9.15)
Posted on 05/21/2005 1:56:02 AM PDT by TigerLikesRooster
Asia tsunami quake stronger than first thought
In May 20 WASHINGTON story headlined "Asia tsunami quake stronger than first thought" please read in 9th paragraph "... moved giant slabs of rock at least 65 feet (20 metres) over a record distance equivalent to that between Florida and New England." (Corrects to show how far rock was moved and over what distance.) A corrected repetition follows.
WASHINGTON (Reuters) - The earthquake that triggered Asia's deadly tsunami in December was more powerful than scientists originally estimated, according to new studies published in Friday's edition of Science.
"The Earth is still ringing like a bell today," nearly six months after the Sumatra-Andaman earthquake, Roland Burgmann, professor of earth and planetary science at the University of California, Berkeley, told the journal.
The quake generated a tsunami that killed about 300,000 people in states around the Indian Ocean.
"We've never been able to study earthquakes of this magnitude before, where a sizable portion of the Earth was distorted," said Burgmann, one of the authors of the study. ADVERTISEMENT
According to the study, researchers now believe the quake had a magnitude of 9.15. Initial measurements put the quake at 9.0 on the Richter scale, making it the fourth-largest quake since 1900.
Burgmann said adjustments in the earth's mantle could have triggered a magnitude 8.7 earthquake in the same area on March 28.
The quake also set records for the longest fault rupture and the longest duration of faulting, the researchers reported.
Burgmann and other scientists who studied data from the quake found it caused deformations of the earth's crust as far away as 2,800 miles (4,500 km) -- five or six times the deformations caused by previous big quakes, the study said.
In another study published in Friday's edition of Science, Yale University professor Jeffrey Park said the quake's rupture moved giant slabs of rock at least 65 feet (20 metres) over a record distance equivalent to that between Florida and New England.
Park warned the Sumatra-Andaman earthquake would continue to affect the region for many years and could trigger more large quakes.
I suspect this will affect many vacation plans. Cruise to Alaska may suddenly look better.:-)
Alaska is always nice this time of year.
This statement by these scientists gives alot more wieght to catastropic event theories. (The continental plates moved large distances in a very short time, a day rather than billions of years).
IIRC, because of the way the scale works..a 9.15 is twice as big as a 9..or something like that..
God is Almighty.
2000 containers of aid relief supplies still sit on the wharves in Indonesia. Not only the boggest quake , but whenit disappears one of the biggest thefts on record.
I worried that something like this would happen. Those liberals are whipping everybody to send something, without checking how much more was needed. Feel-good sanctimonious do-gooders.
Yes, the Earth is changing today, as it did yesterday, and as it will do so again tomorrow. Man-created changes are minuscule compared to the changes that occur naturally. That's why liberals wanting to destroy economies for the sake of global warming is such nonsense.
<< Re #7
I worried that something like this would happen. Those liberals are whipping everybody to send something, without checking how much more was needed. Feel-good sanctimonious do-gooders. >>
Having the world's most stupendously and sytemically corrupt disorganization and its putridly-parasitical henchmen [Swiss charter companies and scores of leach-like NGOs] "oversee" the distribution of Billions in aid among several countries, every one of which numbers among the world's most profoundly corrupt, has created prodigious opportunity for unchecked theft.
Throw in the the Indians were not in any case about to let their 'Untouchables' have anything than their middle finger and complete the picture of the distance remaining to be traveled before South and South-East Asia's squalid states arrive in the Civilized World.
Gos is indeed almighty - one might wonder if the prediction of more earthquakes and such, before the Second Coming, is being triggered.
The number of large quakes in the last 4 years is below the average per year of the last 100 years, and so far this year is VERY much below the long-term average.
This is one of the largest quakes in history and it still only moved a plate 65 feet. And the best estimate is that quakes similar to this in this location happen every 800 to 1,500 years.
India used to be just north of where Antartica is; that's thousands of miles from where it is now. It still took tens of millions of years and thousands of quakes like this to get India to where it is now...and India was the fastest moving plate we know of.
Richter scale or moment magnitude?
Moment magnitude in the original papers.
Getting the popular media to stop using "richter scale" is about as likely as getting Bill Clinton to stop chasing women.
From what I read (since I haven't been to a Holiday Inn Express lately), moment magnitude, especially on the bigger quakes, is a lot more accurate? So this is a pretty big deal in that we're talking a lot more energy released?
Yes, Moment Magnitude is a lot more accurate for large quakes; to be perfectly technical the "Richter scale" only applies to quakes specifically in Southern California and is no longer used by seismologists;
As the second link notes there was a time when seismologists tried to stop the media from using Richter scale incorrectly but they've given up :-)
Do I hear 9.20?...going, going, gone!