Featured Research

The "Snow Plow Theory"* of Early-Arriving Tsunamis

During the M9.2 Alaska earthquake in 1964, a large tsunami locally impacted the coastal town of Seward only 1.5-2 minutes after the start of shaking, and then 30 minutes after the earthquake another large tsunami inundated Seward and many other towns along the coast of Prince William Sound. Yet another tsunami later moved out across the ocean to affect distant coastlines as well. Sudden displacement of the seafloor must have occurred somewhere close to shore, but where and why?

ATOM feedSubscribe to Research ATOM feed

External Research

The USGS invites research proposals that will assist in achieving the goals of the National Earthquake Hazards Reduction Program (NERHP).

Regional Science Activities

Science Centers and Field Offices offer activities for the general public and scientists, including public lectures, workshops, and open houses.


Software programs that are available for download.