Accelerometer recordings of the 1992 Roermond earthquake, the Netherlands, and ground motion simulations using the empirical Green's function method

Abstract

A telemetered digital three-station network at Soultz-sous-Forêts in NE France (280 km SE of Roermond) recorded the ML = 5.8 mainshock of the Roermond earthquake on April 13, 1992 and also the ML = 3.6 aftershock at 01:06 UTC, April 14,1992. Using the empirical Green's function method the ground motions recorded during the mainshock are modelled from the recording of the aftershock. This method is used to calculate a maximum ground acceleration of 0.17 m/s2 (peak-to-peak) at a site in the Rhine Graben where the observed maximum ground acceleration was 0.18 m/s2. The recordings from the three stations show a variation in the amplitude of peak-to-peak ground acceleration for the three sites, from 0.027 m/s2 at a rock site on the edge of the Upper Rhine Graben to 0.18 m/s2 at a station on sediments in this graben.