The July 9 and 23, 1905, Mongolian earthquakes: A surface wave investigation

Emile A. Okal

doi:10.1016/0012-821X(77)90018-8

The July 9 and 23, 1905, Mongolian earthquakes: A surface wave investigation

Emile A. Okal^*

^*Corresponding author for this work

Earth and Planetary Sciences

Research output: Contribution to journal › Article

18 Scopus citations

Abstract

Synthetic Love wave seismograms for a series of reasonable models of the catastrophic earthquakes of July 1905 in Mongolia are generated and compared to observed data, to help constrain the source parameters suggested from older field reports. The most probable models suggested are pure strike-slip, striking N280°E, dipping north 50° to 90°, with an eastward rupture on the order of 200 km for the first event and 300 km for the second one. A seismic moment of 3-8 × 10²⁸ dynes cm, together with a redetermined M_s value of 7.9 ± 0.2 clearly give the first event an "interplate" behavior, consistent with actual theories of Chinese tectonics. Although figures are less accurate, the second event (M₀ {reversed tilde equals} 5 × 10²⁸; M_s {reversed tilde equals} 8.25) probably falls into the same category.

Original language	English (US)
Pages (from-to)	326-331
Number of pages	6
Journal	Earth and Planetary Science Letters
Volume	34
Issue number	2
DOIs	https://doi.org/10.1016/0012-821X(77)90018-8
State	Published - Mar 1977

ASJC Scopus subject areas

Geophysics
Geochemistry and Petrology
Earth and Planetary Sciences (miscellaneous)
Space and Planetary Science

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10.1016/0012-821X(77)90018-8

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Okal, E. A. (1977). The July 9 and 23, 1905, Mongolian earthquakes: A surface wave investigation. Earth and Planetary Science Letters, 34(2), 326-331. https://doi.org/10.1016/0012-821X(77)90018-8

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