Previous studies have found a systematic difference between short-period ground motions from aftershocks and main shocks, but have not used a consistent methodology for classifying earthquakes in strong motion data sets. A method for unambiguously classifying earthquakes in strong motion data sets is developed. The classification is based on the Gardner and Knopoff time window, but with a distance window based on a new distance metric, CRJB, defined as the shortest horizontal distance between the centroid of the surface projection of the potential aftershock rupture plane and the surface projection of the main shock rupture plane.
Abrahamson, N., Wooddell, K. Classification of Main Shocks and Aftershocks in the NGA-West2 Database,
Earthquake Enginering Reserch, 2014, с. 1257-1267.
Abrahamson, N., Wooddell, K. .
Classification of Main Shocks and Aftershocks in the NGA-West2 Database.
: Earthquake Enginering Reserch, 2014, с. 1257-1267.
Abrahamson, N., Wooddell, K. (2014)
Classification of Main Shocks and Aftershocks in the NGA-West2 Database,
: Earthquake Enginering Reserch, с. 1257-1267
Abrahamson, N., & Wooddell, K.
(2014).
Classification of Main Shocks and Aftershocks in the NGA-West2 Database. Earthquake spectra. Earthquake Enginering Reserch 30 (3), с. 1257-1267.
