Propagation of Lg seismic waves in the Soviet Union

Charles Shishkevish

ResearchPublished 1979

Summarizes the data on the Lg phase, a seismic wave-train with periods between 0.5 and 6 sec transmitted in the continental crust with a group velocity of 3.44 to 3.57 km/sec, propagating in the Soviet Union and nearby areas. Amplitude-distance curves and amplitude-distance correction factor data used in determining the magnitudes of Lg are given. The available travel time data, including the "standard" travel times of Lg, are summarized. Analysis of the efficiency of propagation of Lg by Soviet seismologists shows that Lg propagates efficiently across the Indian shield, Tarim basin, and the Russian, Siberian, and Kazakh platforms. It propagates less efficiently along Tien Shan and the Himalayas. The Tibetan platform, central part of the Black Sea, and central and eastern parts of the Caspian Sea completely eliminate Lg.

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  • Copyright: RAND Corporation
  • Availability: Available
  • Year: 1979
  • Print Format: Paperback
  • Paperback Pages: 77
  • Paperback Price: $25.00
  • Document Number: N-1014-ARPA

Citation

RAND Style Manual
Shishkevish, Charles, Propagation of Lg seismic waves in the Soviet Union, RAND Corporation, N-1014-ARPA, 1979. As of October 10, 2024: https://www.rand.org/pubs/notes/N1014.html
Chicago Manual of Style
Shishkevish, Charles, Propagation of Lg seismic waves in the Soviet Union. Santa Monica, CA: RAND Corporation, 1979. https://www.rand.org/pubs/notes/N1014.html. Also available in print form.
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