Vít Kárník

Vít Kárník (5 October 1926 in Prague – 31 January 1994 in Prague) was a Czech geophysicist and seismologist. He and Wilhem Sponheuer developed the Medvedev–Sponheuer–Karnik scale (MSK-scale) for measurement of intensity of earthquakes with Sergei Medvelev and in scale described magnitude of epicentric points

Moscow-Prague formula

M_{\mathrm {S} }=\log _{10}\left({A \over T}\right)_{\max }+\sigma \left(\Delta \right)=\log _{10}\left({A \over T}\right)_{\max }+1{,}66\log _{10}\Delta +3{,}3

max. depth 50Km[1]

References

"Seismik" (PDF). www.geophysik.uni-muenchen.de. Retrieved 2019-07-08.

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[1] "Seismik" (PDF). www.geophysik.uni-muenchen.de. Retrieved 2019-07-08.