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Types of Data

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.

Learn more: Time Series Data Channel Wizard: Time-series data is collected for many types of data, identified using a system of channel codes. Learn about these channel codes using this online tool.

Event Data

Event Data provides information about earthquakes and other seismic events.


Metadata include station siting and instrumentation information.

Historical Data

Historical Data includes scanned seismograms and other information from pre-digital sources.