Meteoroid sonic shock-wave-generated seismic signals observed at a seismic array

Details Meteoroid sonic shock-wave-generated seismic signals observed at a seismic array Meteoroid sonic shock-wave-generated seismic signals observed at a seismic array

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987natur.328..607a&link_type=abstract

Nature (ISSN 0028-0836), vol. 328, Aug. 13, 1987, p. 607-609.

Computer Science

Sound

10

Meteoroids, Seismology, Shock Waves, Sound Propagation, Northwest Territories, Particle Trajectories, Rayleigh Waves, Signal Analysis

Scientific paper

Seismic signals recorded at the Yellowknife seismic array in the Northwest Territory of Canada coincided with the visual observation of a meteor in the sky overhead. The signals cannot be explained by any earthquake, explosion, or impact-generating mechanism. They are shown to be consistent with their having been generated by the shock wave created by the associated meteoroid as it passed through the atmosphere overhead. The meteoroid's trajectory and velocity, as inferred from the array records, is consistent with the observed direction of travel of the meteoroid and independent seismic observation recorded at two single stations in the Northern Canadian seismic network.

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