The Geophysics group at DTM studies the internal structure and dynamics of the Earth, and the physical processes that give rise to earthquakes and volcanic eruptions. By collecting geophysical data through field campaigns throughout the world, DTM geophysicists study a wide variety of problems on many spatial and temporal scales, ranging from mantle convection and subduction-zone dynamics, to magma ascent and eruption.
Currently, the group's primary tools include seismology and geodesy (strain). In recent years, we have deployed seismic and strainmeter networks in the western United States, Peru, Iceland, Hawai'i, Italy, and Nicaragua. We are also actively involved in the development of cutting-edge next-generation instrumentation for geophysical research.
The Geophysics groups' interests are diverse, and have recently included the study of “failed” volcanic eruptions and persistent (continuous long-term) volcanic unrest, triggering of slow earthquakes and volcanic eruptions by tectonic and climatic activity, and the formation and evolution of the continental lithosphere.