Douglas Dreger

Douglas Dreger is a Professor in the Department of Earth and Planetary Science at the University of California, Berkeley. His research focuses on seismic source analysis, wave propagation, Earth structure, and geophysical inverse problems. He primarily uses waveform data to investigate earthquake mechanics, stress orientations, and fluid-faulting interactions.

• Email: dreger@seismo.berkeley.edu

His work spans diverse tectonic and geothermal environments, including the Ridgecrest earthquake sequence, Mendocino Triple Junction, North Korean nuclear tests, and The Geysers geothermal field. Recent studies examine graviquake hypotheses, long-period volcanic tremors, and stress drop validation through advanced inversion techniques.

Dreger's publications reveal a strong emphasis on moment tensor inversion, fault geometry modeling, and seismic hazard assessment. He has contributed to understanding earthquake rupture heterogeneity, coseismic deformation, and 3D seismic simulations for hazard scenarios.