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Updated: Jul 11, 2026

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Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
Published on: August 5, 2016
Summary
Major earthquakes are unlikely to start in the northern Hayward fault. However, past surface ruptures suggest these seismic events initiated elsewhere along the fault.
Area of Science:
- Geophysics
- Seismology
- Plate Tectonics
Background:
- The Hayward fault in the San Francisco Bay area is seismically active between major earthquakes.
- Understanding stress transfer mechanisms is crucial for seismic hazard assessment.
Purpose of the Study:
- To investigate the potential origin of major earthquakes on the northern Hayward fault.
- To analyze the implications of new seismic data for fault behavior.
Main Methods:
- Utilized advanced seismological techniques to study fault dynamics.
- Analyzed seismic data from the northern segment of the Hayward fault.
Main Results:
- Evidence suggests major earthquakes cannot originate in the studied northern segment.
- Observed surface-rupturing earthquakes in the area imply origins north or south of this segment.
Conclusions:
- The northern Hayward fault segment may not be a source for major earthquakes.
- Further research is needed to understand how tectonic stresses transfer to the Hayward fault.
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