Earthquake unrest is showing nationally, and internationally.
Over the past 7 days, up to August 10 2014 , 1215am CDT, a series of moderate earthquakes has occurred in the United States, and Canada (along the ‘edge’ of the North American Craton).
craton earthquakes aug 10 2014
The movement in North America is showing specifically as multiple mid 3.0M earthquakes occurring along the “edge” of the Craton, and occurring across the whole of the deformed craton extending to (and terminating at) the Accretion belt along the subduction zone fault lines in California.
The earthquakes in Canada are also a sign of the overall pressure being placed upon the North American Craton. Pressure showing its hand via a 4.3M event occurring in Southwest Canada, and a borderline 4.0M event occurring in Southeast Canada.
Both earthquake events in Canada, again, occurring along the roughly defined “edge” of the unsubducted craton (plate).
Above: Diagram of the North American Craton (Laurentia) overlayed with a map of the United States for easy earthquake location placement comparison
The North American Craton, which is named Laurentia for future reference sake, is under a tremendous amount of pressure at the moment.
Pressure on the plate is coming from movement half a world away. The West Pacific showing heavy movement from Alaska to New Zealand. The heavy movement in the West Pacific is causing a moderate global plate displacement event to occur.
7 days earthquake aug 10 2014a
Above: Past 7 days of earthquakes 4.0M and greater (up to Aug. 10, 2014 1230am CDT) shows a large number of 5.0M+ events, and several deep earthquakes within the Asthenosphere. The Height of the markers on this globe indicates the depth of the earthquake.
The excessive movement occurring in the West Pacific, is effecting adjacent areas around the Pacific, as well as causing “back and forth” earthquakes across vast distances, occurring at a deep level of the inner Earth, across an area called the Asthenosphere.
The Asthenosphere is showing moderate earthquake activity near the 350 mile depth, usually earthquakes in the 4.0M-5.0M range.
It is an area of partial melt, viscous magma, and possibly even large volumes of corresponding gas.
Above: Dictionary diagram of the proposed basic inner Earth geology. The Asthenosphere being the area below the rigid Lithosphere (crust). To see earthquakes occurring at this depth, indicated a deeper disturbance happening below the entire Pacific plate.
Normally, when we see swarms of earthquakes occur at a greater depth, the swarms are followed by larger Earthquakes , which usually occur at a shallow depth in an ADJACENT area.
For instance, over the past few days, a swarm of mid 4.0M earthquakes occurred near Vanuatu, followed by a 6.0M just a few hours ago (Aug 10) in Japan.
earthquake japan aug 10 2014