California Institute of Technology
Seismological Laboratory Division of Geological and Planetary Sciences


Ethan Williams

Ethan Williams

Grad Student in Geophysics

BS 2017, Geophysics, Stanford

California Institute of Technology
Seismological Laboratory
1200 E. California Blvd., MS 252-21
So. Mudd Building, Rm 358
Pasadena, CA 91125

Phone: (626) 395-6971
Fax: (626) 564-0715


I use seismic and geodetic techniques to study the structural features and mechanical behavior of Earth's crust. My projects span from the basin scale (near-surface elastic heterogeneity, site amplification, hydrogeologic monitoring) to the plate scale (tectonics, structure, fault mechanics). Much of my work focuses on the earthquake and engineering seismology applications of distributed acoustic sensing (DAS), an emergent technology that converts fiber optic cables into dense arrays of broadband
strainmeters. I am also interested in marine geophysics, especially the physics of microseism generation.