A bit wobbly - Oregon coast

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UPDATE: Two more - one 5.3 and one 5.5  Good that it is a bunch of smaller quakes.  It could be saving it all up for one big rip.

UPDATE:  Upgraded from 5.7 to 5.8 Mag.

UPDATE:  4:37PM PST  Another one - 5.7 Mag this time.  The Magnitude scale is logarithmic so an increase of one whole number represents a tenfold increase in measured amplitude as measured on a seismogram.

Glad I don't live on the Pacific coast - I am inland and sheltered by a few land masses.
A conscious decision on my part.   From the USGS:


Those red dots are a 5.5 Mag quake - depth is 10km which is about optimal for coupling to the surface.
No tsunami danger at this time.

My concern is the Cascadia Subduction Zone - it experiences a 9 Mag quake every couple hundred years or so — 41 of them so far.  The tsunamis from these events are huge. We are seriously overdue.

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This page contains a single entry by DaveH published on December 7, 2021 2:19 PM.

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