Citation

Zobin VM, Gordeev EI, Kozyreva NP, Mityakin VP, Chirkova VN. Nat. Hazards 1991; 4(4): 327-344.

Copyright

(Copyright © 1991, Holtzbrinck Springer Nature Publishing Group)

DOI

10.1007/BF00126642

PMID

unavailable

Abstract

This paper gives macroseismic and instrumental data on the 17 August 1983 Kamchatka earthquake which occurred in the center of the Kamchatka Gulf bend at a depth of 98 km with an epicentral intensity of VI-VII (MSK-64 scale), energy class 15, and magnitude MLH = 6.9. The focal mechanism represents a thrust along the inclined surface across the strike of the Kamchatka Gulf coastal line. The Primary-wave seismic moment M 0 is 6.3 × 1019 Nm, the Rayleigh wave M 0 is 1.6 × 1019 Nm, and the stress drop is 2.5 MPa. Copies of displacement and acceleration records are presented and the temporal and spatial distribution of the aftershocks is analyzed.

Language: en