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@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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