Oak Ridge National Laboratory

Physics Division

Physics Division Seminars

Physics Division Seminars bring us speakers on a variety of physics related subjects. Usually these are held in the Building 6008 large Conference Room, at 3:00 pm on the chosen day, but times and locations may vary. For more information, contact our seminar chairman,

Alfredo Galindo-Uribarri
Tel (Office): (865) 574-6124  (FAX): (865) 574-1268

Thu., July 22, 2010, at 3:00 p.m. (refreshments at 2:40 p.m.)

Physics of earthquakes: Progress, challenges, and lessons

Jian Lin, Woods Hole Oceanographic Institution, Woods Hole, MA
Building 6008 Conference Room

This talk will present a growing body of evidence suggesting that earthquakes can interact with each other at a range of spatial and time scales. Static Coulomb stress changes caused by a large earthquake can trigger or retard future earthquake activity in the surrounding region. Delayed earthquake triggering at time scale of hours to decades can be explained by poroelastic and viscoelastic stress transfer in the Earth's crust and mantle. Meanwhile, remote earthquake triggering at distance of several fault lengths to thousands of kilometers can be explained by dynamic stresses associated with the passage of transient seismic waves. Through examples of recent studies in California, China, Haiti, and Chile, this talk aims to highlight the recent progress in research of earthquake physics, while discussing reasons for continuous challenges facing earthquake forecasting.