Evidence of Systematic Triggering at Teleseismic Distances Following Large Earthquakes.

ABSTRACT: Earthquakes are part of a cycle of tectonic stress buildup and release. As fault zones near the end of this seismic cycle, tipping points may be reached whereby triggering occurs and small forces result in cascading failures. The extent of this effect on global seismicity is currently unknown. Here we present evidence of ongoing triggering of earthquakes at remote distances following large source events. The earthquakes used in this study had magnitudes ≥M5.0 and the time period analyzed following large events spans three days. Earthquake occurrences display increases over baseline rates as a function of arc distance away from the epicenters. The p-values deviate from a uniform distribution, with values for collective features commonly below 0.01. An average global forcing function of incr

SUBMITTER: O'Malley RT 

PROVIDER: S-EPMC6072761 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature