The DMC collects and archives a number of different types of data.
Time Series Data
Time Series Data (or Waveform Data) includes sensor recordings of a variety of (primarily seismological) measurements. This is the primary type of data available from the DMC.
Event Data provides information about earthquakes and other seismic events.
Metadata include station siting and instrumentation information.
Historical Data includes scanned seismograms and other information from pre-digital sources.