Seismic moment tensor catalog for crustal earthquakes in the Cook Inlet and Susitna region of southern Alaska

We determine moment tensor solutions for 53 earthquakes in southern Alaska, which include 9 in Beluga, 22 in Cook Inlet, and 22 in Susitna. The moment tensors were estimated using both the waveforms and the first-motion polarities. The best solution was obtained through a grid-search in the double-c...

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Bibliographic Details
Main Author: Silwal, Vipul
Format: Report
Language:English
Published: 2018
Subjects:
Research Subject Categories::NATURAL SCIENCES::Earth sciences::Endogenous earth sciences::Solid earth physics
Beluga
Beluga*
Alaska
Online Access:http://hdl.handle.net/11122/8383
Description
Summary:We determine moment tensor solutions for 53 earthquakes in southern Alaska, which include 9 in Beluga, 22 in Cook Inlet, and 22 in Susitna. The moment tensors were estimated using both the waveforms and the first-motion polarities. The best solution was obtained through a grid-search in the double-couple moment tensor space using the "cut-and-paste" (CAP) approach of Zhu and Helmberger (1996). This project was supported by USGS Earthquake Hazards Program (contract G15AP00052).

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