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The Northern California Earthquake Data Center (NCEDC) is a permanent archive and distribution center primarily for multiple types of digital data relating to earthquakes in central and northern California. The NCEDC is located at the Berkeley Seismological Laboratory, and has been accessible to users via the Internet since mid-1992. The NCEDC was formed as a joint project of the Berkeley Seismological Laboratory (BSL) and the U.S. Geological Survey (USGS) at Menlo Park in 1991, and current USGS funding is provided under a cooperative agreement for seismic network operations.
The Southern California Earthquake Data Center (SCEDC) operates at the Seismological Laboratory at Caltech and is the primary archive of seismological data for southern California. The 1932-to-present Caltech/USGS catalog maintained by the SCEDC is the most complete archive of seismic data for any region in the United States. Our mission is to maintain an easily accessible, well-organized, high-quality, searchable archive for research in seismology and earthquake engineering. will provide a comprehensive environment for experimental, theoretical, and computational engineering and science, providing a place not only to steward data from its creation through archive, but also the workspace in which to understand, analyze, collaborate and publish that data. At the heart of the cyberinfrastructure, the Data Depot is the central shared data repository that supports the full research lifecycle, from data creation to analysis to curation and publication. The Data Depot will accept any data the user wishes to supply into a local workspace, even if the data type is unknown or only partial metadata is provided. The Discovery Workspace will be a web-based environment that provides researchers with access to data analysis tools, computational simulation tools, visualization tools, educational tools, and user-contributed tools within the cloud to support research workflows, learning, and discovery. The Reconnaissance Integration Portal will be the main access point to data collected during the reconnaissance of windstorm and earthquake events.
USGS data and tools are the digital information in a format suitable for direct input to software that can analyze its meaning in the scientific, engineering, or business context for which the data were collected.
IRIS offers free and open access to a comprehensive data store of raw geophysical time-series data collected from a large variety of sensors, courtesy of a vast array of US and International scientific networks, including seismometers (permanent and temporary), tilt and strain meters, infrasound, temperature, atmospheric pressure and gravimeters, to support basic research aimed at imaging the Earth's interior.