Category: "Catalogs"

Changes to the NCSN/NCEDC catalog

July 18th, 2008
July 18th, 2008 The NCEDC has migrated all NCSN phase, catalog, and waveform information from ASCII files into the CISN database. This migration necessitated the following changes. Formerly the catalog referenced historic events without waveforms for… more »

PG&E seismic data available at the NCEDC

October 20th, 2006
October 16th, 2006 The NCEDC is pleased to announce the availability of seismic phase and waveform data from the Pacific Gas and Electric seismic network that monitors seismicity in the vicinity of the Diablo Canyon nuclear powerplant. The phase data,… more »

Availability of Parkfield data

September 28th, 2004
The NCEDC is gathering data related to the 2004 Parkfield earthquake and making them available for researchers. Data are coming in now and will continue to be collected over the next few days and weeks. Information about the available data is here: more »

Discrepancy in magnitude from database search

June 14th, 2004
We have discovered an inconsistency between the magnitudes reported in the new database search of the UC Berkeley earthquake catalogs ( http://www.ncedc.org/db/Search/PI/dbselect.html) and the older, flat file search (… more »

BSL earthquake catalog available in database

December 19th, 2003
The NCEDC is gradually converting the Northern California earthquake catalogs from "flat files" to a database structure. At present, the BSL BDSN catalog is transferred from 1984-present and the information is accessible through a search interface here:… more »

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