Skip to main content
U.S. flag

An official website of the United States government

Operational Aftershock Forecasting

August 11, 2025

The Operational Aftershock Forecasting server runs continuously in the cloud, monitoring the USGS ComCat earthquake catalog. It automatically generates aftershock forecasts and publishes them on the earthquake event pages. The analyst utilities are GUI programs that are used by analysts to evaluate the operation of the OAF servers, and make adjustments to the statistical model used by the servers to compute forecasts.

Publication Year 2025
Title Operational Aftershock Forecasting
DOI 10.5066/P1FJSYVJ
Authors Michael Barall, Nicholas J Van Der Elst
Product Type Software Release
Record Source USGS Asset Identifier Service (AIS)
USGS Organization Earthquake Science Center
Rights This work is marked with CC0 1.0 Universal
Was this page helpful?