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High-frequency lunar teleseismic eventsA small number of seismic signals, including some of the strongest observed to date, have been identified as representing a fourth principal category of natural lunar seismic events with characteristics distinct from those produced by normal meteoroid impacts, deep moonquakes, and thermal moonquakes. These signals are much richer in high frequencies than other events observed at comparable distances, and display relatively impulsive P- and S-wave beginnings, indicating negligible seismic-wave scattering near the source. Source depths of these events may range between 0 and perhaps 300 km. These and other characteristics could represent either (1) meteoroids impacting upon outcrops of competent lunar crystal rock, (2) rare impacting objects that penetrate to competent rock below a scattering zone, or (3) shallow tectonic moonquakes.
Document ID
19750055654
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Nakamura, Y.
Dorman, J.
Duennebier, F.
Ewing, M.
Lammlein, D.
Latham, G.
(Texas, University Galveston, Tex., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1974
Subject Category
Lunar And Planetary Exploration
Meeting Information
Meeting: Lunar Science Conference
Location: Houston, TX
Start Date: March 18, 1974
End Date: March 22, 1974
Accession Number
75A39726
Funding Number(s)
CONTRACT_GRANT: NAS9-13143
Distribution Limits
Public
Copyright
Other

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