Interevent-time distribution and aftershock frequency in non-stationary induced seismicity.

ABSTRACT: The initial footprint of an earthquake can be extended considerably by triggering of clustered aftershocks. Such earthquake-earthquake interactions have been studied extensively for data-rich, stationary natural seismicity. Induced seismicity, however, is intrinsically inhomogeneous in time and space and may have a limited catalog of events; this may hamper the distinction between human-induced background events and triggered aftershocks. Here we introduce a novel Gamma Accelerated-Failure-Time model for efficiently analyzing interevent-time distributions in such cases. It addresses the spatiotemporal variation and quantifies, per event, the probability of each event to have been triggered. Distentangling the obscuring aftershocks from the background events is a crucial step to better unde

SUBMITTER: Post RAJ 

PROVIDER: S-EPMC7878511 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature