Bulletin of the Seismological Society of America
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Bulletin of the Seismological Society of America; April 1969; v. 59; no. 2; p. 923-933
© 1969 Seismological Society of America
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by BRUNE, J. N.
Right arrow Articles by ENGEN, G. R.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Excitation of mantle Love waves and definition of mantle wave magnitude

JAMES N. BRUNE and GLADYS R. ENGEN

SEISMOLOGICAL LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY, PASADENA, CALIFORNIADIVISION OF GEOLOGICAL SCIENCES

Abstract

A study is made of the excitation of mantle Love waves of 100 seconds period as a function of magnitude. 153 measurements of Love wave spectral density for earthquakes since 1930 ranging in magnitude from 6.0 to 8.9 are used to determine an excitation curve. The observations were first corrected to a standard distance of 90°. The excitation curve supports earlier results for mantle Rayleigh waves and, for strike-slip motion, an earlier curve for seismic moment versus mantle-wave magnitude. For dip-slip motion, the moments should be multiplied by a factor of about 2Formula. A definition of mantle wave magnitude MM, is set up, and the largest earthquake since 1930 found on this scale is the Alaskan earthquake of March 28, 1964 where MM = 8.9. Other comparably large earthquakes, MM = 8.8, were the Kamchatka earthquake of November 4, 1952 and the Chilean earthquake of May 22, 1960. It is suggested that mantle-wave magnitudes be used as a diagnostic aid in estimating the Tsunami potential of earthquakes.




This article has been cited by other articles:


Home page
 Seismological Research LettersHome page
K. Kuenza and C. Soon-Hoe
Anatomy of the 17 July 2006 Java Earthquake Reveals Its Tsunamigenic Nature
Seismological Research Letters, January 1, 2010; 81(1): 99 - 112.
[Full Text] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
R. BULAND and J. TAGGART
A mantle wave magnitude for the St. Elias, Alaska, earthquake of 28 February 1979
Bulletin of the Seismological Society of America, August 1, 1981; 71(4): 1143 - 1159.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
A. REYES, J. N. BRUNE, and C. LOMNITZ
Source mechanism and aftershock study of the Colima, Mexico earthquake of January 30, 1973
Bulletin of the Seismological Society of America, December 1, 1979; 69(6): 1819 - 1840.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
J. A. GRANT and L. MANSINHA
Seismic magnitude from Fourier analysis
Bulletin of the Seismological Society of America, April 1, 1977; 67(2): 453 - 461.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
H. KANAMORI and D. L. ANDERSON
Theoretical basis of some empirical relations in seismology
Bulletin of the Seismological Society of America, October 1, 1975; 65(5): 1073 - 1095.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
M. D. TRIFUNAC and J. N. BRUNE
Complexity of energy release during the Imperial Valley, California, earthquake of 1940
Bulletin of the Seismological Society of America, February 1, 1970; 60(1): 137 - 160.
[Abstract] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1969 by the Seismological Society of America.