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Response to mike_c (Reply #4)

Thu Feb 23, 2012, 06:18 AM

5. I thought there was another small earth quake of smaller magnitude this AM

but the USGS did not note a quake nearby.

Most of the major Humbolt county earthquakes are offshore Petrolia so this one by Weitchipec was unusual.

The 5+ quake was at the boundary of the Galice and Franciscan formation and unusual.

Usually when there big quakes on the coast or offshore they are dampened where I live because of the many faults in the ancient rock.

One can see the faults inlands in the strikes of serpentine soils; often parts of the nearly linear faults are so old they have been covered by medi-sediments from the Galice formation so skip across the landscape because of landslides.

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PufPuf23 Feb 2012 OP
Tikki Feb 2012 #1
PufPuf23 Feb 2012 #2
classof56 Feb 2012 #3
mike_c Feb 2012 #4
LineLineNew Reply I thought there was another small earth quake of smaller magnitude this AM
PufPuf23 Feb 2012 #5
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