Northern California Earthquake Phase Readings Retrieve additional parametric information such as phase readings and amplitude readings for Northern California Earthquakes, from either the NCSN or the UC Berkeley catalogs. In addition, the NCSN first-motion mechanisms may be retrieved. The catalog is not currently searchable with an online form. The BDSN has digital continuous and event-triggered digital waveforms seismic broadband sensors, strong motion accelerometers, You may query what waveform data are available, and may submit requests for automated data retrieval. Currently Geysers waveform data are available only from research accounts .
Recent data are also available in the original raw GPS receiver format.
Nearly all BDSN sites with broadband seismometors also have temperature and pressure sensors. These data may be retrieved using the same tool as for the BDSN seismic waveform data. The actual sensors and sampling rates have varied over time, but currently consist of electric and magnetic field sensors at SAO and PKD and electric field sensors at PKD1. These data may be retrieved using the same tool as for the BDSN seismic waveform data. In addition to the raw data, magnetic activity and Schumann resonance parameters are derived from electromagnetic sensors at BDSN stations.