A new study suggests certain earthquake fault segments long thought to be stable may rupture and cause a mega-quake.
That’s what happened during the 2011 magnitude-9 quake in Japan that triggered a tsunami and during the 1999 magnitude-7.6 Chi-Chi quake in Taiwan.
In both cases, scientists assumed that “creeping” segments in a fault would serve as a buffer and prevent the entire fault from unzipping.
But a new study published in the journal Nature suggests this may not always be the case.
This may have important implications for California’s San Andreas Fault, which has a creeping section that separates the locked segments in Northern and Southern California.
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