Cluster Of Quakes Off Oregon Coast - Is A Big Cascadia Rupture Coming?

We are nearing a big Cascadia rupture as a swarm of strong earthquakes hits the subducting Juan de Fuca Plate!

 Strange Sounds

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…