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Re: China EQ

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Hmmm, Suresh, I was on the roof of my house in Richmond & Loma Prieta seemed to last all of about 30 seconds, altho I recognize that imperceptable shaking may have lasted much longer. I thought the length is typically given as about 5 minutes.

Ralph

Sent from my iPhone

On Jun 10, 2008, at 11:42 AM, Drew Morris <dmorris(--nospam--at)bbfm.com> wrote:

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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