Station Metadata and Maps

The SCEDC archives and distributes station metadata for all SCSN seismic stations. For where we have digital waveforms (1977-present), we strive to be able describe all stages of the instrument response so that users can derive ground motion. For the era prior to digital waveforms we provide station latitude and longitude. The SCEDC also stores metadata from surrounding regional seismic networks, whose stations might be used in SCSN processing to help refine earthquake locations. As a result, the user will find non-CI metadata in our web services and station lists, but we encourage the user to go to the regional seismic network for the authoritative version. The metadata hosted by the SCEDC is produced by the ANSS Station Information System, which is used by a number of ANSS regional seismic networks, funded by the ANSS, and maintained and developed by SCEDC staff.

Station Lists and Naming Conventions

Current lists of stations used by the SCSN, naming practices for station data, and description of how station information is maintained.

• Analog and Digital Station List - A list of any channels that exist in SCEDC archive
• Analog and Digital Station List: Vertical Components Only
• FDSN Station Web Service
• Strong-Motion Station Aliases Used Prior to 2012
• SEED Channel Descriptions
• Site Characterizations
• Overview of SCSN stations (to www.scsn.org)

Station Maps

Maps of SCSN stations

• Data Discovery Map
• Entire Array
• Entire Array - Los Angeles Region
• BH_Station Map
• BH_ Stations - Los Angeles Region

Instrumentation

Hardware and response information of SCSN stations

• Instrument Responses (Simple Response or "Stage 0" gain for a seismic channel)
• FDSN StationXML for SCSN Stations - A directory of files for CI stations in FDSNStationXML format. Contains stage sensitivities if available
• ¹Dataless SEED Volumes for SCSN Stations - A directory of files for CI stations in dataless SEED format. Contains stage sensitivites if available
• FDSN Station Web Service Contains stage sensitivities if available
• RESP Web Service Serves out stage sensitivities in RESP format
• SACPZ Web Service Serves out stage sensitivities in sacpz format
• Overview of Seismic Instrumentation used by Southern California Seismic Network (to www.scsn.org)

References and Notes

• FDSN StationXML documentation
• Standard for the Exchange of Earthquake Data (SEED) Reference Manual
• ¹Following the trend by other Seismic Data Centers, we plan to discontinue distributing metadata in dataless SEED format in the next year. Dataless SEED files can be converted from FDSN StationXML files using the IRIS converter. If you have questions or comments, please contact us at scedc@gps.caltech.edu