A screenshot of the Interactive Tremor Map.

Monitoring Slow Slip

Recognition of the phenomena of slow slip is perhaps one of the most exciting discoveries in geophysics in the last decade. These phenomena are providing new clues and understanding about the processes involved in the loading and relaxation of deformation in subduction zones and elsewhere, which in turn will ultimately help us assess and reduce the hazard associated with the relaxation that occurs as damaging earthquakes. The newness of this discovery, and the explosion of related studies and data, require new efforts to coordinate information exchange about these phenomena and their connections to earthquakes. USGS is coordinating with other groups studying slow slip, and the results of these studies will be conveyed to various sectors of the public.