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Bulletin of the Seismological Society of America; August 2006; v. 96; no. 4A; p. 1545-1550; DOI: 10.1785/0120050194
© 2006 Seismological Society of America
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Short Note

Changes in Seismic-Moment Rates along the Rupture Zone of the 1964 Great Alaska Earthquake

Diane I. Doser1, Annette M. Veilleux1, Claudia Flores3 and Wesley A. Brown2

1 Department of Geological Sciences
University of Texas at El Paso
El Paso, Texas 79968-0555
doser{at}geo.utep.edu
 (D.I.D, A.M.V.)
2 Texas A&M University
Agricultural Research Center
1380 A&M Circle
El Paso, Texas 79927
WBrown{at}ag.tamu.edu
 (W.A.B.)
3 Earta Sciences Department
University of California at Santa Cruz
Santa Cruz, California, 95064
cflores{at}es.ucsc.edu
 (C.F.)

We examined seismic-moment rates associated with the Prince William Sound and Kodiak Island asperities of the 1964 great Alaska earthquake rupture zone to determine how seismicity has varied through time and space. Our results indicate that there has been a factor of 5–10 decrease in seismic-moment rates within the Prince William Sound asperity region since 1964, whereas seismic-moment rates have actually increased within the Kodiak asperity region since 1964, primarily because of a sequence of Mw > 7.0 earthquakes that have occurred since 1998.




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A. M. Veilleux and D. I. Doser
Studies of Wadati-Benioff Zone Seismicity of the Anchorage, Alaska, Region
Bulletin of the Seismological Society of America, February 1, 2007; 97(1B): 52 - 62.
[Abstract] [Full Text] [PDF]


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