Type
Text
Type
Thesis
Advisor
Holt, William | Davis, Daniel | Rasbury, Troy.
Date
2014-12-01
Keywords
Geophysics
Department
Department of Geosciences.
Language
en_US
Source
This work is sponsored by the Stony Brook University Graduate School in compliance with the requirements for completion of degree.
Identifier
http://hdl.handle.net/11401/77661
Publisher
The Graduate School, Stony Brook University: Stony Brook, NY.
Format
application/pdf
Abstract
Recent studies have found a periodic phenomenon in some subduction zones called episodic tremor and slip (ETS). This kind of event can be detected by GPS stations and PBO stations. The ETS events can last 3-4 weeks and are generally correlated with non-volcanic tremor signals on seismometers. The Cascadia subduction zone has been divided into three ETS regions due to the variation of recurrence interval [Brudzinski and Allen, 2007], and most of the past studies that focused on the displacement field, have not analyzed the region for crustal strain patterns during the transient events. Stresses will be released during the ETS events at the lower plate interface and then transfer onto the overlying plate above the locked megathrust zone. However, no past research has mapped the strain field within Cascadia during the ETS events, where such strains result from the imposed stresses. The purpose of this project is to create time-dependent strain maps of Cascadia during ETS events and characterize Cascadia slow slip in terms of mapped strain anomalies. | 41 pages
Recommended Citation
Qu, Fang, "Analysis of Episodic Tremor and Slip in Cascadia Subduction Zone Using the Displacement and Strain Method" (2014). Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions). 3453.
https://commons.library.stonybrook.edu/stony-brook-theses-and-dissertations-collection/3453