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:

• Broadband Ocean Bottom Seismometer (OBSBB)

Typical Units

m/s^2

Sampling Regime

Seafloor/Crust

Data Product Specification

GRNDACC DPS