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A Moment Magnitude Scale

Hanks, Thomas C. and Kanamori, Hiroo (1979) A Moment Magnitude Scale. Journal of Geophysical Research B, 84 (B5). pp. 2348-2350. ISSN 0148-0227. doi:10.1029/JB084iB05p02348.

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The nearly coincident forms of the relations between seismic moment M_0 and the magnitudes M_L, M_S, and M_w imply a moment magnitude scale M = ⅔ log M_0 - 10.7 which is uniformly valid for 3 ≲ M_L ≲ 7, 5 ≲ M_s ≲ 7½, and M_w ≳ 7½.

Item Type:Article
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URLURL TypeDescription
Kanamori, Hiroo0000-0001-8219-9428
Additional Information:© 1979 American Geophysical Union. Received August 22, 1978; revised December 20, 1978; accepted January 8, 1979. First published: 10 May 1979. Article first published online: 20 September 2012. D. M. Boore, W. R. Thatcher, and R. L. Wesson critically read the manuscript and made several useful suggestions. This research was supported in part by NSF grant ENV 76-81816. Publication approved by the Director, U.S. Geological Survey. Contribution 3187, Division of Geological and Planetary Sciences, California Institute of Technology.
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NSFENV 76-81816
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Caltech Division of Geological and Planetary Sciences3187
Issue or Number:B5
Record Number:CaltechAUTHORS:20150610-081914248
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Official Citation:Hanks, T. C., and H. Kanamori (1979), A moment magnitude scale, J. Geophys. Res., 84(B5), 2348–2350, doi:10.1029/JB084iB05p02348.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58146
Deposited On:10 Jun 2015 15:36
Last Modified:10 Nov 2021 22:00

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