The nation's coastlines are vulnerable to the interrelated hazards posed by earthquakes, landslides, and tsunamis. In the marine environment these events often occur in concert, and distant triggers can cause severe local effects, making the issue global in scope. As the population continues to migrate toward the coastlines, the social impacts of these hazards are expected to grow. Products are aimed for use in regional multi-hazard assessments, and might range from complete assessments to analysis tools, interpreted data, or models. We are interacting with groups tasked with making formal hazard assessments and have provided products needed by them in a timely manner (e.g., Southern California Earthquake Center (SCEC), Working Group on California Earthquake Probabilities (WGCEP)). These collaborations will continue to be a major guiding influence, and we plan to maintain research flexibility needed for proper response as necessary. As such, the task is defined thematically. The larger community will help to establish guidelines on regions in which we will we work.
The Coastal and Marine Geology geoengineering group investigates the causes of ground deformation and ground failures—such as landslides and liquefaction—that result from earthquakes, storms, and wave action.
This site provides general information about how earthquakes generate tsunamis, as well as descriptions and animations of historical tsunamis, virtual reality models showing how tsunamis change as they approach and bounce off coastlines, and summaries of past fieldwork in areas struck by major tsunamis.
We work closely with scientists in the USGS Earthquake Hazards Program, with the goal of providing relevant scientific information to reduce deaths, injuries, and property damage from earthquakes.
We collaborate with groups that make formal hazard assessments, such as the Working Group on California Earthquake Probabilities (WGCEP), providing and evaluating the latest scientific information. This site presents the most recent collaborative earthquake forecasts for all of California.
Reducing risk where tectonic plates collide — USGS Fact Sheet 2017-3024
Reducing risk where tectonic plates collide—U.S. Geological Survey subduction zone science plan — U.S. Geological Survey Circular 1428
Tsunamis: Bayesian Probabilistic Analysis — Encyclopedia of Complexity and Systems Science, 2017
A physics-based earthquake simulator and its application to seismic hazard assessment in Calabria (Southern Italy) region — Acta Geophysica, 2017
Reconstruction of Far-Field Tsunami Amplitude Distributions from Earthquake Sources — Pure and Applied Geophysics, 2016
Vertical deformation associated with normal fault systems evolved over coseismic, postseismic, and multiseismic periods — Journal of Geophysical Research: Solid Earth 121
Non-linear resonant coupling of tsunami edge waves using stochastic earthquake source models — Geophysical Journal International 204
A submarine landslide source for the devastating 1964 Chenega tsunami, southern Alaska — Earth and Planetary Science Letters 438
Great (≥Mw8.0) megathrust earthquakes and the subduction of excess sediment and bathymetrically smooth seafloor — Geosphere 11
Dynamic models of an earthquake and tsunami offshore Ventura, California — Geophysical Research Letters 42
Earthquake rupture process recreated from a natural fault surface — Journal of Geophysical Research: Solid Earth 120