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Re: China EQ

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Acharya, Suresh wrote:
Worth adding: Sichuan earthquake lasted several minutes compared to Loma Prieta earthquake which lasted for 20 minutes. Both occurred at similar depths (18 km). Suresh Acharya, S.E.
The USGS gave the duration of the Loma Preita EQ as being on the order of 20 seconds. Does the 20 minutes you quote include aftershocks?

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