ORFEUS Products and Services for Strong Motion Seismology

Date: 4/25/2019

Time: 06:00 PM

Room: Grand Ballroom

ORFEUS (Observatories & Research Facilities for European Seismology) is a European collaborative effort to promote seismology through the collection, archiving and dissemination of digital seismic waveform data and metadata. Much work has been carried out in the past five years to apply the advanced level of standardization reached by the broadband seismological community to strong-motion data and metadata, that are typically used in the fields of engineering seismology. Key data providers operating in the Euro-Mediterranean area are organised within ORFEUS Strong-Motion Service Management Committee (SM-SMC). The main goals of the SM-SMC are: a) encouraging and enabling open access to event-based waveforms, derived intensity measures and to downstream ORFEUS; b) enhancing the interoperability with other disciplines, in the framework of the EU EPOS research infrastructure (www.epos-ip.org). Feedback from the users’ community is ensured through a User Advisory. Two infrastructures were created for the dissemination of ground-motion parameters and response spectral amplitudes: i) a Rapid Raw Strong-Motion database (RRSM; http://www.orfeus-eu.org/rrsm), purely automatic, that makes peak-motions and spectral amplitudes available within minutes of the occurrence of any event with M≥3.5; ii) an Engineering Strong-motion database (ESM; http://esm.mi.ingv.it/), that distributes only manually processed and expert revised event-based waveforms, peak-motions, response spectra, earthquake and station metadata of events with M≥4.0. Other products/services include software for strong-motion data processing and selection of waveforms compliant to building codes, webservices to access waveforms, strong-motion parameters and USGS ShakeMap input files. A collaboration with the European seismic hazard and risk community has been established as strong-motion parameters are the necessary input to derive / rank ground motion prediction equations. A novel European ShakeMap service is envisaged, based on the USGS ShakeMap codes and the input from RRSM and ESM peak-motion webservices.

Presenting Author: Carlo Cauzzi

Authors