Earthquake Epicenter

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How to calculate intensity and epicenter of earthquake in greek language

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    .

    . . , . . Primary(P), Secondary(S). . . P S. 36s, S 180mm.

    ( ).

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    .

    S-P .

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    (P) p=7.5Km/s, (S) s=4.3Km/s. .

    : P : = =

    P : = =

    : = = =

    =

    = = 10

    (t) (x,Km)

    Eureka 50 500 Elko 72 720

    Las Vegas 64 640 M .( ). .

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    . Richter. . 1935 Dr. C. F. Richter. 3 8 . , (Amplitude) . .

    (mm)1 (x,Km)

    Eureka 280 500 Elko 60 720

    Las Vegas 100 640 .

    .

    1 .

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    7.

    : http://www.sciencecourseware.org/VirtualEarthquake/VQuakeExecute.html