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Thread: Mw 6.4 SOUTHERN CALIFORNIA

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    Mw 6.4 SOUTHERN CALIFORNIA

    Magnitude Mw 6.4
    Region SOUTHERN CALIFORNIA
    Date time 2019-07-04 17:35:01.7 UTC
    Location 35.64 N ; 117.56 W
    Depth 5 km


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    Moderator Wind's Avatar
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    Big ones there, no wonder I've been feeling dizzy again.

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    Senior Member Bob's Avatar
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    I was over that area on Monday and Tuesday - the stress was there - I felt slight rocking Monday..

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    Senior Member Aianawa's Avatar
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    Lol 6 km deep, usually a sign of weres fiddling, on 4th july also with Trump trying to up usaian energy, surprised more people are not dot connecting.

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    Super Moderator United States Dreamtimer's Avatar
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    I'm seeing reports of a 7.1 which happened Friday evening. Near Ridgecrest.
    Last edited by Dreamtimer, 6th July 2019 at 17:52.

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    Senior Member Bob's Avatar
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    Areas in black show the smaller quakes that have been happening and their locations along the main fault(s)..




    Regionally this shows as areas of concern:



    One can see the location of the Ridgecrest quakes with respect to major locations in California..

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    Senior Member Aianawa's Avatar
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    Mmmm Cali picking up the stress atm, tisa a blessing so far, fingers n thumbs crossed.

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    Super Moderator United States Dreamtimer's Avatar
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    The fault lines through Ridgecrest look really straight.

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    Senior Member Bob's Avatar
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    I might be headed out to Ridgecrest in a month or so, with some deep-earth-sensing equipment to look at precursors to quakes. Should provide 24 hours warning, maybe.. the theory is solid, and the electrokinetic (electricity/electromagnetics from seismic movement) monitoring is possible..

    What is not possible at the moment is safe discharging of faults under tension. When they slip, the tendency is to be a dramatic jerk, inducing then jello-like jostling waves in the surroundings...

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    Senior Member Aianawa's Avatar
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    Only 5 km deep, what sort of quake I ponder.

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    Senior Member Bob's Avatar
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    Hi Vern and the group

    They called it a strike-slip type of quake:

    Two geological blocks were grinding against each other, side-by-side, as one moves (roughly speaking) horizontally in the opposite direction to the other.

    That type of activity does release electro-kinetic energy that radiates upwards (and all around the contact locations. It is conjectured that sensitive people can pick this up as well as animals with their feet on the ground (feeling the electric charges or sensations).

    the quake took place on a shallow strike slip fault within the North American plate, one that was very steeply inclined.

    The area is known for its high seismic hazard, so earthquakes like this are to be expected from time to time; over the past 40 years, there have been eight other earthquakes fairly close to the July 4 tremblor near Ridgecrest coming in at a magnitude 5-or-above.

    "The strange thing about this one is it kept rolling and rolling and rolling."

    The shallower the quake, the more shaking and the greater the damage it will cause if we happen to be in the way.
    This is a interesting effect: Loosely packed sediments shake more, and if they are wet, they can behave like a fluid.

    An example of that effect (ChristChurch, New Zealand, 2011):



    This has happened in Alaska too, where mostly a whole town disappeared as the ground liquefied. Saturated sand with water can be a dangerous combination when the ground shakes..

    Quote Originally posted by Aianawa View Post
    Only 5 km deep, what sort of quake I ponder.

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  23. #12
    Administrator Aragorn's Avatar
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    Quote Originally posted by Aianawa View Post
    Only 5 km deep, what sort of quake I ponder.
    Well, the south of California is on a natural fault line, so it's perfectly normal for there to be quakes at that depth.
    = DEATH BEFORE DISHONOR =

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