A cluster of earthquakes has been ongoing off the coast of Oregon early this morning, with the major ones being a M5.5 event, a M5.4, and a M5.3, in that order.
The earthquake swarm started at 2:25 PT (10:25 UTC) as shown below:
M4.3 – off the coast of Oregon
M5.4 – 287 km WNW of Bandon, Oregon; reported by 8 people on the continent
M5.2 – off the coast of Oregon; reported by 2 people on the continent
M5.3 – off the coast of Oregon; reported by 4 people on the continent
M4.1 – off the coast of Oregon
M3.9 – off the coast of Oregon
According to USGS, all of these quakes occurred at a depth of 10km (6.2 miles). But looking at different apps around, the quakes were very deep…
Why this cover up, again?
Maybe because a big earthquake is overdue along the Cascadia subduction zone, the convergent plate boundary that stretches from northern Vancouver Island in Canada to Northern California in the United States.
And as visible on the map below, the Juan de Fuca plate is linked to this very long, sloping subduction zone where the Explorer, Juan de Fuca, and Gorda plates move to the east and slide below the much larger mostly continental North American Plate.
Major cities affected by a disturbance in this subduction zone include Vancouver and Victoria, British Columbia; Seattle, Washington; and Portland, Oregon.
It is the first time in several years that such a strong swarm occurs off the coast of Oregon…
Do you think it is a sign of the next Cascadia superquake and tsunami?
Here’s the best article ever written about this Cascadia disaster… And if you want to know more, I would suggest you to watch this documentary (press on the picture below):
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