Today morning, two shallow earthquakes (M4.6 and M4.4) hit off the coast of northern California at a depth of 8km and 19km, respectively.
The pair of quakes struck 17 seconds apart of each other (8:21:18 and 8:21:35 AM UTC).
Some weak or light shaking was probably felt in the Eureka and Fortuna areas.
The third M2.5 quake in the area hit 1 hour after the first two…
Meanwhile, I am sure geologists closely monitor the seismicity along the west coast…
These earthquakes could indeed be precursors of the next Cascadia Megathrust Earthquake or California Big One…
Moreover, if you look at the map from PSNS below, additional quakes rattled the Cascadia Subduction Zone off the Oregonian coast and on Victoria Island in Canada, as well.
An earthquake will destroy a sizable portion of the coastal Northwest.
The question isn’t if but when. And keep in mind: The next full-margin rupture of the Cascadia subduction zone will spell the worst natural disaster in the history of the continent.
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