Martian seismicity

Details Martian seismicity Martian seismicity

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept...13p&link_type=abstract

In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 13-14 (SEE N92-10728 01-91)

Physics

Geophysics

Mars Surface, Mars Volcanoes, Melting, Planetary Evolution, Seismology, Tectonics, Landforms, Mars (Planet), Thermoelasticity

Scientific paper

The design and ultimate success of network seismology experiments on Mars depends on the present level of Martian seismicity. Volcanic and tectonic landforms observed from imaging experiments show that Mars must have been a seismically active planet in the past and there is no reason to discount the notion that Mars is seismically active today but at a lower level of activity. Models are explored for present day Mars seismicity. Depending on the sensitivity and geometry of a seismic network and the attenuation and scattering properties of the interior, it appears that a reasonable number of Martian seismic events would be detected over the period of a decade. The thermoelastic cooling mechanism as estimated is surely a lower bound, and a more refined estimate would take into account specifically the regional cooling of Tharsis and lead to a higher frequency of seismic events.

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