An analyst picks arrival times on a waveform.

Each arrival time is assigned a unique ARID (ARrival IDentifier).

A unique WFID (WaveForm IDentifier) is assigned to each waveform.

For example, there is a unique waveform associated with this event recorded by the vertical component (Z) of the broadband channel (BH) at station WMQ.

A unique ORID (ORigin IDentifier) is assigned to an event location. There can be many ORIDs (i.e. locations) associated with an event

   

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Introduction | Variety of Data Sets | Efficient Storage of Large Integrated Data Sets
Regional Earthquake Research | Regional Monitoring Research | Summary