Natural SciencesEarth SciencesGeophysicsEarthquake EngineeringInstrumentationSeismologyEarthquake Ground MotionSeismic Data AcquisitionSeismic Data ProcessingSeismic InstrumentationStrong Ground MotionStrong-motion SeismologyAccelerogram AnalysisEarthquake Signal ProcessingStrong Ground Motion RecordsStrong Motion Record ProcessingStrong-motion Data ProcessingStrong-motion InstrumentationStrong-motion NetworksTriggered Seismicity
Processing of strong-motion earthquake accelerograms is now carried out routinely on a world-wide basis. Two international workshops have given participants the opportunity to assess their capabilities. Data from the larger instrumentation networks are disseminated widely. The US Geological Survey's strong-motion network consists largely of film recorders, due to their long reliable life and the relatively slow addition of digital recorders. The USGS processing of film records contains steps which have become necessary in dealing with the triggered nature of these records.