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Broadband Ground Acceleration (GRNDACC)

Broadband Ground Acceleration is the time-series seismic signal sensed by a strong motion accelerometer within the Broadband Ocean Bottom Seismometer. These seismic signals provide a characterization of seismicity/earthquake activity along tectonic plate boundaries where two key phenomena can occur: large-magnitude subduction zone earthquakes and seismicity associated with migration of melt (magma) beneath the seafloor at underwater volcanoes.

Instrument Classes

The following instrument classes include this data product:

Typical Units

Sampling Regime

Data Product Specification