OCGC Seminar - Ross Stein

Ross Stein

US Geological Survey, Menlo Park, California


Tuesday - 24 September 2013

13:00 - 14:00 - Harrison Hall, 601 Booth Street


Earthquake triggers and shadows on the scale of a fault to the planet (with interactive demonstrations)


Earthquake interaction is the easiest way in to the difficult and possibly insoluble problem of earthquake prediction. Much of earthquake interaction in space and time—such as aftershocks, doublets, seismicity shutdowns, toggling shocks, and progressive earthquake sequences—can be explained by the transfer of static Coulomb stress between faults. But the 2012 M=8.6 Indian Ocean quake appears to have triggered large aftershocks around the globe for several days, followed by a global shutdown of large shocks that persisted for several months. This unprecedented event reveals that under special conditions, earthquake triggering and shadowing can encompass the globe.