Spatiotemporal Variations in the Interplate Slip Rate Around Kodiak Island, Alaska

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Authors: Yutaro Okada, Takuya Nishimura, Jeffrey Todd Freymueller
Cited by: 0
References: 39

Abstract

Abstract Monitoring spatiotemporal variations in the interplate slip rate during the interseismic period, such as transient strain release by slow slip events (SSEs), is crucial for characterizing the physical properties of faults. We analyze 10 years of Global Navigation Satellite System (GNSS) data in the region of Kodiak Island, Alaska. Relative to the long‐term average slip deficit rate, we identify two SSEs and four transient increases in slip deficit rate, which we newly termed sticking events. Sticking events with a higher slip deficit rate occur before and after SSEs. These temporal correlations suggest that sticking events are associated with the SSEs. The variation in slip deficit rates suggests that it is not possible to separate the record into SSE and inter‐SSE periods, and slip deficit on parts of the megathrust may be continuously variable in time.

Fields of Study & Subjects

Oceanographic and Atmospheric Processes Atmospheric and Environmental Gas Dynamics Marine and coastal ecosystems

Publication details

Journal / source
Geophysical Research Letters
Volume
53
Issue
7
Publication date
6 April 2026
Language
EN