It is beginning to appear to us that a 20-25 km long left-lateral strike-slip fault, perhaps fully unmapped before the earthquake, is responsible for the 15 May rupture. There is just one notable scarp along this entire trend, suggesting it is a young fault.

It is beginning to appear to us that a 20-25 km long left-lateral strike-slip fault, perhaps fully unmapped before the earthquake, is responsible for the 15 May rupture. There is just one notable scarp along this entire trend, suggesting it is a young fault.

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