Strong-motion processing service: a tool to access and analyse earthquakes strong-motion waveforms

Abstract

Strong-motion data processing is necessary to evaluate reliable ground-motion for standard or specific applications. We describe a processing web-service, fully inte- grated with the engineering strong motion database (ESM), a daily-updated strong-motion archive that contains more than 50,000 waveforms of events with magnitude C 4.0, mainly recorded in the Pan-European region. A user-friendly web front-end allows the interactive use of a ‘‘robust’’ procedure (in the sense that it has been extensively tested), in order to select and process uncorrected waveforms from the ESM database, and derive several products: processed acceleration, velocity and displacement time series, as well as acceleration and displacement response spectra. The service is addressed to engineering seismologists, earthquake engineers, but also to students and professionals, if adequately trained.