Slip rate, earthquake recurrence, and seismogenic potential of the Rodgers Creek Fault Zone, northern California: Initial results

Geophysical Research Letters
By: , and 

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Abstract

Instrumental seismicity defines a seismic gap along the Rodgers Creek fault zone (RCFZ) between Santa Rosa and San Pablo Bay. Results of a paleoseismicity study within the gap, using offset channels in late Holocene alluvial deposits as piercing points, indicate a minimum slip rate of 2.1 to 5.8 mm/yr for the past 1300 years, a preferred range for the maximum recurrence interval of 248 to 679 years, and a surface offset of 2 +0.3, −0.2 m during the most recent event. The RCFZ has produced past M7 earthquakes, and historical seismicity data indicate a minimum elapsed time of 182 years since the most recent earthquake of this size.

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Publication type Article
Publication Subtype Journal Article
Title Slip rate, earthquake recurrence, and seismogenic potential of the Rodgers Creek Fault Zone, northern California: Initial results
Series title Geophysical Research Letters
DOI 10.1029/91GL00465
Volume 18
Issue 3
Year Published 1991
Language English
Publisher American Geophysical Union
Description 4 p.
First page 447
Last page 450
Country United States
State California
Other Geospatial Rodgers Creek
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