Category: "Waveform Data"

Calpine/LBL Geysers data added to the NCEDC

April 3rd, 2004
The NCEDC is pleased to announce the availability of seismic phase and waveform data from the Calpine/Lawrence Berkeley Labs seismic network that monitors seismicity in the vicinity of the Geysers geothermal field. The phase data begins 2003/04/04.… more »

NCEDC archives continuous HRSN data following the 2003/12/22 San Simeon earthquake

February 27th, 2004
February 27, 2004 The NCEDC is archiving continuous high frequency data from the HRSN borehole network due to increased seismic activity following the magnitude 6.5 San Simeon Earthquake of December 22, 2003. The NCEDC normally archives continuous 20… more »

NCEDC archives continuous BDSN data for the 2003/12/22 San Simeon Earthquake

January 28th, 2004
January 28, 2004 The NCEDC has archived 7 days of continuous high frequency data from the BDSN network for the days surrounding the magnitude 6.5 San Simeon Earthquake of December 22, 2003. The NCEDC normally archives continuous 20 Hz and lower… more »

NCEDC expands continuous 250 Hz archive for HRSN network

January 19th, 2004
January 19, 2004 The NCEDC has extented its continuous archive of 250 Hz data from the HRSN (BP) network with an additional 109 days of continuous 250 Hz data. Continuous 250 Hz data from 2002.228,20:00 - 2002.336,20:00 now available from the HRSN (BP)… more »

EVT_FAST system provides access to NCSN waveform data

November 16th, 2001
The USGS Northern California Seismic Network (NCSN) has recorded seismic waveforms for events in northern California from 1984 through present time. These data are archived at the NCEDC, and are now available to users via the EVT_FAST automated event… more »

SeismiQuery web interface available

November 15th, 2001
The SeismiQuery program, a web-based program developed by the IRIS DMC, is now available the NCEDC. SeismiQuery provides users with a variety of pre-formatted queries concerning waveform data, instrument response, and channel information database from… more »

NetDC available at the NCEDC

January 23rd, 2000
January 23, 2000 NetDC (Networked Data Centers), a system that allows users to easily and transparently request and retrieve information about seismic and geophysical network data from multiple data centers, is now available at the NCEDC. A NetDC… more »

NCSN Byteorder problem resolved

October 20th, 1999
October 20, 1999 We have corrected the byte order problem that was detected earlier this year in a number of NCSN grm (waveform) files at the NCEDC. See the announcement: Byteorder problem detected in some NCSN waveform files for details. A few (~… more »

BK Network data available in SEED format

October 4th, 1999
October 4, 1999 As of October 4, 1999, the NCEDC can distribute all data for the entire BK network in SEED format with complete multi-stage instrument responses. This includes all seismic channels (broadband and strong motion), electric and magnetic… more »

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