by Mitch Battros – Earth Changes MediaEarly Thursday morning a 6.9 magnitude quake hit in the Gulf of California. (see EQ list below) This is no doubt in relation to the series of quakes along the ring-of-fire which begun in the Indian Ocean near Sumatra with an 8.6 quake on April 11th.Gulf of California EQ List: http://on.doi.gov/b46jEQ

 

 

Later that day, some fourteen hours later, the rift found its way to the US Northwest off the coast of Oregon. Then fourteen “minutes” later, Mexico was hit with a 7.0 near Michoacan. The rift continues hitting the Gulf of Calif. with a 6.9 mag. quake seventeen hours after Mexico.

 

Note: A point of interest is there was a “foreshock” of 6.2 nine hours prior to the larger 6.9. This is an event I look for when assessing mega-quakes which could occur at subduction zones.

 

 

Another point of interest – is rare quake events which have occurred in Utah and Oklahoma. Regarding Utah; there are some seismologists who believe there is a connection between the Cascadia Subduction Zone – Utah and Yellowstone Caldera. As for Oklahoma, some believe the cause may be related to man-made drilling leaving this area vulnerable to deep mantle movement. Utah and Southern Calif. EQ List:http://on.doi.gov/aRSx6V

 

 

Yellowstone – Earthquakes and Volcanoes

 

An international team of researchers, including two scientists from the University of Rochester, have been studying the location and behavior of magma chambers on the Earth’s mid-ocean ridge system which is a vast chain of volcanoes along which the Earth forms new crust.

 

Two new studies into the “plumbing systems” that lie under volcanoes could bring scientists closer to understanding plate ruptures and predicting eruptions – both of which are important steps for protecting the public from earthquake and volcanic hazards.

 

 

In an extensive study of eruptions, researchers identified multiple magma chambers positioned horizontally and vertically, allowing magma to shoot in several directions. Earthquake patterns were used to track the migrating magma as it inflated cracks, and to map the rupture of faults above the miles of propagating magma injection zones. The combined data sets show that separate magma chambers fed single eruptions.

 

This could be the smoking gun which connects the US west coast with Utah and on to Yellowstone.

 

FULL ARTICLE – http://bit.ly/HMTLr0

 

 

Sumatra – Cascadia – Puerto Rico Subduction Zones

 

Just as with the Sumatra Subduction Zone, the Cascadia and Puerto Rico zones are prone to large mega-quakes which could reach into the 9+ magnitudes. I have presented historical data along with recent studies of Cascadia, now I will present historical and current facts about the Puerto Rico zone.

  

 

A dozen major earthquakes of magnitude 7.0 or greater have occurred in the Caribbean near Puerto Rico, the U.S. Virgin Islands and the island of Hispaniola, shared by Haiti and the Dominican Republic, in the past 500 years, and several have generated tsunamis. The most recent major earthquake, a magnitude 8.1 in 1946, resulted in a tsunami that killed a reported 1,600 people.

 

With nearly twenty million people now living in this tourist region and a major earthquake occurring on average every 50 years, scientists say it is not a question of if it will happen but when. They are calling for the establishment of tsunami early warning systems in the Caribbean Sea, Gulf of Mexico and Atlantic Ocean, and better public education about the real tsunami threats in these regions.

 

 

The Puerto Rico Trench, which is capable of producing mega-quakes of magnitude 8 or greater, faces north and east into the Atlantic Ocean. There are few land areas or islands to block a tsunami generated near the Puerto Rico Trench from entering the Atlantic Ocean. The United States East Coast has a high risk of suffering a direct hit from a tsunami ‘surge’ or 10 story foot waves.

 

Puerto Rico Subduction Zone EQ List:http://on.doi.gov/dw52NM

 

Indian Ocean Near Sumatra EQ List:http://on.doi.gov/HP8fTm

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