Introduction
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.. figure:: _static/strongmotion.png

The Strong-Motion services within ORFEUS are grouped in two complimentary strong-motion data systems:

* The Rapid Raw Strong Motion database (RRSM) - an entirely automated system that uses open data from EIDA. It provides earthquake information and strong motion parameters including PGA and PGV within minutes of any event.

http://www.orfeus-eu/rrsm

* The Engineering Strong-Motion database (ESM) - a reviewed archive of accelerometric waveforms from events with magnitudes above 4.0 recorded in Europe and the middle-East since 1969. It provides unprocessed acceleration time-series, manually processed acceleration, velocity, and displacement waveforms, acceleration and displacement response spectra, and other relevant engineering parameters.

http://www.orfeus-eu/esm

More information is available at https://doi.org/10.1785/0220200398.