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Originally posted by TrueAmerican
reply to post by JohnVidale
lol, funny. We get nearly identical signatures in nearly the same location, along the same divergent boundary, caused most probably by the same mechanism, and yet now all of sudden it's one quake instead of two?
British Geological Survey seismologist Dr Susanne Sargeant says.
"Strike slip earthquakes are caused when two blocks move horizontally past each other. Such an earthquake would not lead to the vertical displacement of the sea floor that would be required to generate a tsunami. Consequently, the potential for a large tsunami from this earthquake is likely to be low," she said.
In my 'umble opinion I believe the Oregon off shore 5.9/6.0 was actually 2 with 58 seconds of separation and with 2 very small ones after that. The second one has never been reported as far as I can see, at least not on USGS.