Potential Duration of the Aftershocks of the 2020 Southwestern Puerto Rico Earthquake

By Nicholas J. van der Elst, Jeanne L. Hardebeck, and Andrew J. Michael

USGS Open-File Report 2020–1009.

This report estimates the expected duration of aftershocks by incorporating observations of aftershocks as of January 17, 2020, into a well-established statistical model of how earthquake sequences behave.