Products and Services Available from the Southern California Earthquake Data Center (SCEDC) and the Southern California Seismic Network (SCSN)

Ellen Yu, Prabha Acharya, Aparna Bhaskaran, Shang-Lin Chen, Jennifer Andrews, Valerie Thomas, Egill Hauksson, & Robert W. Clayton

Published August 11, 2016, SCEC Contribution #6643, 2016 SCEC Annual Meeting Poster #198

The SCEDC archives continuous data from 9429 data channels and 513 SCSN recorded stations. The SCEDC processes and archives an average of 16,000 earthquakes each year. The SCEDC provides public access to these earthquake parametric and waveform data through its website scedc.caltech.edu and through web services and client applications such as STP. This poster will describe the most significant developments at the SCEDC in the past year.

In addition to the real time GPS displacement waveforms now archived at SCEDC, the SCEDC is now archiving seismogeodetic waveforms displacement and velocity waveforms produced by the California Real Time Network. These waveforms are computed by combining the 1 sps real time GPS solutions with 100 Hz accelerometer data.

The SCEDC data holdings now include a double difference catalog (Hauksson et. al 2011) spanning 1981 through 2015 available via STP, and a focal mechanism catalog (Yang et al. 2011).

In an effort to assist researchers accessing catalogs from multiple seismic networks, the SCEDC has entered its earthquake parametric catalog into the ANSS Common Catalog (ComCat). Origin, phase, and magnitude information have been loaded.

The SCEDC has implemented Continuous Wave Buffer (CWB) to manage its waveform archive. This software was developed and currently in use at NEIC. CWB has simplified and streamlined waveform archival, which allows the SCEDC to maximize the completeness of its waveform archives as well as making continuous data available within seconds of real time.

The SCEDC now provides web services to access its holdings.
Event Parametric Data (FDSN Compliant): http://service.scedc.caltech.edu/fdsnws/event/1/
Station Metadata (FDSN Compliant): http://service.scedc.caltech.edu/fdsnws/station/1/
Waveforms (FDSN Compliant): http://service.scedc.caltech.edu/fdsnws/dataselect/1/
Event Windowed Waveforms, phases: http://service.scedc.caltech.edu/webstp/

Key Words
Earthquakes, Seismology, Catalogs, Seismograms

Citation
Yu, E., Acharya, P., Bhaskaran, A., Chen, S., Andrews, J., Thomas, V., Hauksson, E., & Clayton, R. W. (2016, 08). Products and Services Available from the Southern California Earthquake Data Center (SCEDC) and the Southern California Seismic Network (SCSN). Poster Presentation at 2016 SCEC Annual Meeting.

Related Projects & Working Groups
Seismology