Photo Gallery

USGS National Headquarters in Reston, Virginia

Running a dynamic earthquake model

Palm Springs from Mt. San Jacinto, towards the San Andreas Fault

NASA Goddard Space Flight Center in Greenbelt, Maryland

Geology building at U of MD on graduation day

San Andreas Fault crossing in Parkfield, California

Glacial striations in Central Park, NYC

Spaceflight Operations Facility at NASA's JPL in Pasadena, California