Displacement hazard from distributed ruptures in strike-slip earthquakes

This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.1785/0120230044. This is version 3 of this Preprint.

Add a Comment

You must log in to post a comment.


Comments

There are no comments or no comments have been made public for this article.

Downloads

Download Preprint

Authors

Alba Mar Rodriguez Padilla, Michael Eugene Oskin

Abstract

Widespread distributed fracturing during earthquakes threatens infrastructure and lifelines. We combine high-resolution rupture maps from the five major surface-rupturing strike-slip earthquakes in southern California and northern Mexico since 1992 to incorporate the displacements produced by distributed ruptures into a probabilistic displacement hazard analysis framework. Through analysis of the spatial distribution of mapped ruptures and displacements for each of these events, we develop a magnitude-dependent expression for the probability per unit area of finding a distributed rupture that accommodates a displacement that exceeds a displacement threshold at a given distance away from the principal fault. Our model is best applied to estimating expected distributed displacements for strike-slip earthquakes, similar to those analyzed, with widespread ruptures across immature fault zones.

DOI

https://doi.org/10.31223/X5DT0D

Subjects

Engineering, Physical Sciences and Mathematics

Keywords

fault displacement hazard, earthquake engineering, probabilistic seismic hazard assessment

Dates

Published: 2023-03-20 02:17

Last Updated: 2023-07-22 01:59

Older Versions
License

No Creative Commons license

Additional Metadata

Conflict of interest statement:
None