Regional seismic structure and dynamics, mantle upwelling processes. Earthquake rupture mechanisms. Seismic hazard mitigation including earthquake early warning systems.
As a seismologist interested in natural disasters my research includes the determination and interpretation of earth structure using synthesized seismological techniques, the development of an earthquake alarm system (ElarmS), and assessment of natural hazard mitigation strategies in the US. I have also conducted research into verification of the comprehensive test ban treaty. You'll find more information on my homepage, also information for prospective students.
More information on Richard's research group, publications and teaching is available on his homepage: http://rallen.berkeley.edu