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A search for ELF/VLF emissions induced by earthquakes as observed in the ionosphere by the DE 2 satelliteELF/VLF data from 63 DE 2 orbits coincident with large (magnitude not less than 5.0) earthquakes were examined individually and compared with control orbits not coincident with earthquakes. No unusual emissions coincident with the passing of the DE 2 satellite near an epicenter within a certain temporal and spatial window were identified for any orbit. About 63 percent of the orbits showed an ELF or VLF emission above 10 micro-V/m in at least one of the 20 channels when the satellite passed near and epicenter; 37 percent were quiet in all channels.
Document ID
19930060135
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Henderson, T. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Sonwalkar, V. S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Helliwell, R. A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Inan, U. S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Fraser-Smith, A. C. (Stanford Univ. CA, United States)
Date Acquired
August 16, 2013
Publication Date
June 1, 1993
Publication Information
Publication: Journal of Geophysical Research
Volume: 98
Issue: A6
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
93A44132
Funding Number(s)
CONTRACT_GRANT: N00014-92-J-1576
CONTRACT_GRANT: NAG5-476
Distribution Limits
Public
Copyright
Other

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