Gavin P Hayes

I am a seismologist with the USGS in Golden. I conduct research on large earthquakes and their causes, and am a coordinator of NEICs response to global earthquakes. I implemented several of the tools NEIC uses to rapidly characterize earthquakes, including the W-phase moment tensor & finite fault inversion algorithms. I also developed and manage the Slab2 subduction zone geometry database.


Gavin Hayes (Ph.D., Penn State, 2007) is a research geophysicist at the U.S. Geological Survey’s National Earthquake Information Center in Golden, CO.  His work is focused on issues relating tectonics, earthquake seismogenesis, and earthquake hazards mainly in the context of global subduction zones. Since joining the NEIC, Gavin has developed approaches to constrain the three-dimensional geometry of subducting plates from their shallowest definition at oceanic trenches, to their deepest seismic extent in the mid-mantle, using global earthquake catalogs and active source seismic data, coupled with probabilistic assessments of location uncertainties. Using these approaches he created and manages the “Slab1.0” database, and its recent update, “Slab2”. He uses these models to study the relationships between fault geometry and earthquake rupture.  Gavin is also a senior scientist heavily involved in the real time response to earthquakes at the NEIC, helping to rapidly characterize the source properties of earthquakes using moment tensor inversions and finite fault modeling, and interpreting events within their regional tectonic context to provide the public, press and scientific community a comprehensive understanding of why a specific event has occurred. He also manages databases for W-phase and rapid finite fault modeling results.