Back-to-Back earthquakes have just struck in the Pacific Ocean, at the dangerous Cascadia Subduction Zone (CSZ) off the U.S. West Coast at the Canada Border. The first quake, a Magnitude 6.6, struck at 11:08:32sec AM eastern US time (8:08 AM local time) at a shallow depth of 11km. It was immediately followed by another quake measuring Magnitude 6.4 at 11:08:47sec.
The United States Geological Survey has reported BOTH as separate quakes, but has alternated their reporting - now showing only ONE (1) quake, M 6.4.
The Pacific Tsunami Warning Center says there is NO TSUNAMI DANGER.
To have such a strong earthquake in this particular area is a very dangerous event. The Cascadia Subduction Zone is literally the-most-dangerous active earthquake zone on earth. It is where "the BIG ONE" will begin, on the US West Coast.
Moreover, even though these quakes are not "the big one" such events tend to make surrounding areas a bit unstable, which could lead to additional, larger quakes.
More details as they become available . . . .
