CATALOG OF EARTHQUAKE-HYPOCENTERS AT REDOUBT VOLCANO AND MT. SPURR, ALASKA: OCTOBER 12, 1989-DECEMBER 31, 1990
Power, J. A., March, G. D., Lahr, J. C., Jolly, A. D., and Cruse, G. R., 1993, Catalog of earthquake-hypocenters at Redoubt Volcano and Mt. Spurr, Alaska: October 12, 1989-December 31, 1990: U.S. Geological Survey Open-File Report 93-685-B, 1 5 1/4 inch disk.