Dynamic rupture models of earthquakes on the Bartlett Springs Fault, Northern California

Geophysical Research Letters
By: , and 

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Abstract

The Bartlett Springs Fault (BSF), the easternmost branch of the northern San Andreas Fault system, creeps along much of its length. Geodetic data for the BSF are sparse, and surface creep rates are generally poorly constrained. The two existing geodetic slip rate inversions resolve at least one locked patch within the creeping zones. We use the 3-D finite element code FaultMod to conduct dynamic rupture models based on both geodetic inversions, in order to determine the ability of rupture to propagate into the creeping regions, as well as to assess possible magnitudes for BSF ruptures. For both sets of models, we find that the distribution of aseismic creep limits the extent of coseismic rupture, due to the contrast in frictional properties between the locked and creeping regions.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Dynamic rupture models of earthquakes on the Bartlett Springs Fault, Northern California
Series title Geophysical Research Letters
DOI 10.1002/2015GL063802
Volume 42
Issue 11
Year Published 2015
Language English
Publisher Wiley
Contributing office(s) Earthquake Science Center
Description 7 p.
First page 4343
Last page 4349
Country United States
State California
Other Geospatial Bartlett Springs Fault, Northern California
Online Only (Y/N) N
Additional Online Files (Y/N) N