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Posted on 10/01/2009 2:25:28 PM PDT by EBH
The major 2004 earthquake in Sumatra may have weakened the San Andreas fault, 8,000km away in California.
This is according to scientists who took measurements from the fault over two decades.
Reporting in the journal Nature, the team found that small "repeating earthquakes" became more frequent as the San Andreas Fault weakened...
... "But after Sumatra, the frequency changed - it increased - but the magnitude decreased.
"That is a signal of the fault weakening; you only have to push a little bit and the fault fails."
Fenglin Niu from Carnegie, who also took part in the research, said: "So it is possible that the strength of faults and earthquake risk is affected by seismic events on the other side of the world."
The 2004 Sumatran earthquake was magnitude 9.3 - one of the strongest on record - and triggered the tsunami that killed more than 220,000 people.
The 30 September 2009 earthquake along the same fault line was measured at magnitude 7.6.
(Excerpt) Read more at news.bbc.co.uk ...
a little ot :
there was a small earthquake today near Bakersfield 4.4 magnitude. Hope it everyone is ok :D
It's one big cracked ball.
I would imagine that earthquakes could affect another fault anywhere on the globe, but I would imagine that sometimes they could decrease the chance of an earthquake along any given fault as easily as they could increase the chance of an earthquake.
I’m glad these scientists are finally agreeing with my wife. She’s been saying that for years. Way to go, Honey!
Seems to me they are saying California could be next.
South End of the San Andres (Salton Sea) is 100 years overdue for a big shake.
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Strategerist;
IIRC, you were saying this was impossible.
Have you adjusted your perspective, or not?
That would be my guess as well. Earthquakes would rearrange everything ... some would get worse, some better.
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