#EarthquakeReport for M 4.5 #Earthquake beneath #Washington
Depth suggests may be intraplate earthquake, within subducted Juan de Fuca plate (?)
Learn more about the Cascadia subduction zone here: https://earthjay.com/?p=3640
https://earthquake.usgs.gov/earthquakes/eventpage/uw61965081/executive
#EarthquakeReport for M 4.5 #Earthquake beneath #Washington
Shaking intensity up to MMI 5
Compressional earthquake mechanism suggests the event may be in North America plate
Learn more about the Cascadia subduction zone here: earthjay.com/?p=3640
@ingalls yes, it could be in the top, but i suspect that, if in the jdf plate, it might be in the lower part because the plate is starting to bend here (causing extension in upper part and compression in lower part).
after i posted this, the depth got closer to the megathrust interface depth, so i began to think that this may be on the megathrust itself.
@earthjay Would such a profile be possible originating from a fault near the top of the Juan de Fuca Plate?