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San Francisco possible next target for major earthquake

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Google map image of earthquake cluster near San Andreas Lake

 

San Andreas Fault  is on the move near San Francisco with a cluster of small earthquakes this afternoon. Cluster may be a precursor to a much larger earthquake.  The earthquake cluster comes on the 105th anniversary of the great San Francisco earthquake.  The great earthquake magnitude was registered between 7.8 and 8.3 on the Richter scale. The 1906 tremor said to have shook for 40 seconds. The great quake caused widespread destruction and loss of life. Impacted in area of over 300,000 miles.² along the San Andreas fault. Creating a surface fissure which extended continuously for 200 miles, and sporadically for another 80 miles. The quake left 200,000 homeless in more than 3000 dead. 

The great  San Francisco earthquake of 1906 pales in comparison to the 2011 Tōhoku earthquake and tsunami. The energy released in the Japanese earthquake was the equivalent of 30 San Francisco earthquakes all at one time.

 USGS,  has a good definition on explaining: Aftershocks, Foreshocks and Earthquake Clusters.

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Scientists have shown that the rules governing aftershock behavior also apply to “aftershocks” that are larger than their main shock – i.e., the possibility that the first event was a foreshock. 

 

… Aftershock Facts: In a cluster, the earthquake with the largest magnitude is called the main shock; anything before it is a foreshock and anything after it is an aftershock. 

 

…As a rule of thumb, we call earthquakes aftershocks if they are at a distance from the main shock’s fault no greater than the length of that fault.   The automatic system keeps track of where aftershocks have occurred, and when enough aftershocks have been recorded to pinpoint the more and less active locations, the system adjusts the probabilities on the map to reflect those local variations.

…We call an earthquake an aftershock as long as the rate at which earthquakes occur in that region is greater than the rate before the main shock.   How long this lasts depends on the size of the main shock (bigger earthquakes have more aftershocks) and how active the region was before the main shock (if the region was seismically quiet before the main shock, the aftershocks continue above the previous rate for a longer time). 

 

…The difference in magnitude between the main shock and largest aftershock ranges from 0.1 to 3 or more, but averages 1.2 (a M5.5 aftershock to a M6.7 main shock for example). 

 

 

Scientists have shown that the rules governing aftershock behavior also apply to “aftershocks” that are larger than their main shock – i.e., the possibility that the first event was a foreshock. 
 
… Aftershock Facts: In a cluster, the earthquake with the largest magnitude is called the main shock; anything before it is a foreshock and anything after it is an aftershock. 
 
…As a rule of thumb, we call earthquakes aftershocks if they are at a distance from the main shock’s fault no greater than the length of that fault. 
 
…We call an earthquake an aftershock as long as the rate at which earthquakes occur in that region is greater than the rate before the main shock.   How long this lasts depends on the size of the main shock (bigger earthquakes have more aftershocks) and how active the region was before the main shock (if the region was seismically quiet before the main shock, the aftershocks continue above the previous rate for a longer time). 
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click on image for larger view



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    Total 13 comments
    • Anonymous

      you’re ridiculous. Truly idiotic! There are thousands of e-quakes all over the world. You are clearly groping for straws idiot.

    • Redpaw 360

      Calm down anon, the meds will kick in soon. There is alot of info in this article.

      Chill.

    • asterflower

      Thank you for explaining.

      Aster

    • Enigmanonymous

      And nothing of value will be lost.

    • SSSIXXX

      NEIN. IT’S THE EARTH SHAPING ITSELF TO ULTIMATELY POUND LOS ANGELES INTO THE OCEAN AS I HAVE COMMANDED THE EARTH TO DO. THEY WERE IRRESPONSIBLE TO HATE THIS: THEY HAVE BROUGHT IT UPON THEMSELVES. l..l,

    • Member 51

      I knew should have taken the Blue pill !!

    • On The Record

      Anonymous, I’m only as ridiculous as your ridiculous response to my posting. I didn’t say that San Francisco “would” have a great earthquake, u Idiot! That It was just possible. Moreover… the posting was more of an informational piece trying to tie past earthquake information in context with recent events.

    • straycat

      “That It was just possible.”

      We will presume that you know that is not saying. Plus you didn’t JUST say ‘possible’, your title reads “San Francisco possible next target for major earthquake”; the implication being that that ‘could happen at any time, so be ready, etc., etc.

      Just remember that it is possible that Jesus will ‘return’ on May 21 and that 144,000 lucky people will be raptured away, but I not betting on that to happen either just based on postings on the internets, if ya know what I mean Verne?

    • McClarinJ

      I like this article because it fits with the “before it’s news” theme of the Web site and it’s based on reported physical indications that something very newsworthy may be about to happen.

      What could improve the article is to provide links to sources so that readers can verify the report and not be dependent on the word of some guy who hides behind a Web handle. It’s not as if Before It’s News can be counted on to thoroughly vet its pseudonymous writers. Clearly the admission bar for writers is low enough that the lawnmower will have plenty of clearance passing over it.

    • Crystali

      Lol Straycat. Jesus never left so cannot return but will make himself known and aware. The 144,000 are the ascended masters, not people to be saved. No one can be saved, only assisted. The lighted ones know, all the rest just scoff and huff and declare their disbelief! You’ll know when the wave hits!!!

    • Anonymous

      There is no indication whatsoever that San Francisco should be considered “next” for a big earthquake. Evidence points to the Pacific Northwest and Madrid Fault area.

    • HfjNUlYZ

      All I can say about those who’s brains were warped by their parents, and their parents before them, is the belief in talking snakes, and men who condem fig trees and walk on water. When May 22nd rolls around, I’ll be the firat to say, “I told you so!” The JW’s have been “predicting-the-end” since 1874. A DOZEN times they’ve been wrong! If you talk to one, they will tell you, the 144,000 are ALL Jehovah’s Witnesses! Get real will ya? If you insist on quoting the Bible, wasn’t Jesus the one who said, “no one knows, not the son, but the Father only?” Some sh*t like that. Like all “sales,” it is a selling-point for whoever is dumb enough to try and outguess the “Creator.” Enki and his brother Enlil, wouldn’t like that. Neither would their Annunaki parents Anu and Antu!
      Why is it, the dumest sh*t here, is always from “anonymous?”

    • Crystali

      Funny that those that think they know all know only most about nothing but their own arrogance! Must be those ignorant Anunaki devils who send out their shills who cannot spell to stalk and spout out their foul mouthed rants to anyone who has a difference of opinion, with such unfounded anger too. No wonder the seekers of truth cannot discern when the moles are out to drive their wedges in between that which scares and bothers them. Never mind, the SonS of the true light and the angelic forces warned us that there will be more attacks by the dark brotherhood as the age draws to an end.

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