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, which begins in 10/1987, have been merged into the NCSN catalog, and the NCSN locations have been re-computed from the combined phase data set. PG stations can be recognized with their network code of "PG".

The PG&E data improves the accuracy of more than 11,000 earthquakes previously available in the NCSN catalog, the majority of which are aftershocks of the San Simeon and Parkfield earthquakes. It also includes approximately 1000 new hypocenters for these two earthquake sequences. As of 2006/09/05, waveforms from all PG&E stations in the Diablo Canyon region are being imported by the NCSN and SCSN in real-time and reflected in the hypocenters and waveform data archived at the NCEDC and SCEDC.

The California Integrated Seismic Network greatly appreciates the cooperation of PG&E in monitoring earthquakes in California and their willingess to make this data set available to the public.

The NCEDC is a joint project of the University of California, Berkeley and the USGS, with facilities located at the University of California, Berkeley. Please send us email at ncedcinfo@ncedc.org or fill out our comments form if you have questions or comments about these changes.

NCEDC reorganizes EarthScope PBO strain data directory structure

March 17th, 2006

March 17th, 2006

The Northern California Earthquake Data Center has reorganized its directory structure for EarthScope Plate Boundary Observatory (PBO) raw and processed strain data in accordance with standards established by the Plate Boundary Observatory, operated by UNAVCO, Inc.

The new directory structure places all data for PBO strain site within a directory named for the site. Data are further divided into yearly directories, and for raw data, into daily directories. The following table provides top level links to each type of data.

PBO Data Type
URL
Raw borehole strain data /pbo/strain/raw/bsm/
Raw laser strain /pbo/strain/raw/lsm/
Processed borehole strain data /pbo/strain/procssed/bsm/
Processed laser strain data /pbo/strain/processed/lsm/

strain data at the NCEDC can be found at the NCEDC PBO strain data page.

The NCEDC is a joint project of the University of California, Berkeley and the USGS, with facilities located at the University of California, Berkeley. Please send us email at ncedcinfo@ncedc.org or fill out our comments form if you have questions or comments about these changes.

NCEDC adopts NCEDC.ORG domain name

September 14th, 2005

September 14th, 2005

The Northern California Earthquake Data Center is pleased to announce the acquisition and use of the domain name NCEDC.ORG for the its network facilities. The NCEDC web pages are now available at http://www.ncedc.org/, and all the webmaster can be reached at ncedcinfo@ncedc.org. Email for automated data requests should be sent to:

Email Data Requests
NetDC netdc@ncedc.org
BREQ_FAST breq_fast@ncedc.org
EVT_FAST evt_fast@ncedc.org

The previous NCEDC email addresses and URLs will continue to work.

The NCEDC is a joint project of the University of California, Berkeley and the USGS, with facilities located at the University of California, Berkeley. Please send us email at ncedcinfo@ncedc.org or fill out our comments form if you have questions or comments about these changes.

PBO Strain data available at the NCEDC

June 24th, 2005

June 24th, 2005

The NCEDC is pleased to announce the availability of strain data from the Plate Boundary Observatory (PBO) component of the EarthScope Project. Earthscope is a Major Research Initiative of the National Science Foundation (NSF).

PBO is a geodetic observatory designed to study the three-dimensional strain field resulting from deformation across the active boundary zone between the Pacific and North American plates in the western United States. The observatory consists of arrays of Global Positioning System (GPS) receivers and strainmeters which will be used to deduce the strain field on timescales of days to decades.

As of 6/24/2005, data from the first two laser strainmeters data are available in their native format. Data in SEED format should be available soon. Information on the NCEDC archive of PBO data is here.

The NCEDC is a joint project of the University of California, Berkeley and the USGS. Please send us email at ncedcinfo@ncedc.org or fill out our comments form if you have questions or comments about these changes.

IP Address Change

May 26th, 2005

May 26th, 2005

The NCEDC will begin moving its computers to a new, more seismically secure building and computer room facility. This will require a new IP address for the NCEDC web and ftp server. The new address, starting at 2005/05/26,12:00 PDT will be:

169.229.197.11 www.ncedc.org

If your computer uses the Domain Name System (DNS) to look up the IP address of a hostname, you do not need to make any changes. Your computer will automatically find the new address once the address change has been made.

However, if your computer uses static host tables (/etc/hosts on most Unix systems), you will need to update the address in the hosts file at that time.

If you have any problems connecting to the NCEDC computer after Thursday, May 26 2005, please contact Doug Neuhauser at doug@seismo.berkeley.edu.

The NCEDC web and ftp server will be unavailable for ~ 2 hours during this move. We regret any inconvenience that this causes.

The NCEDC is a joint project of the University of California, Berkeley and the USGS. Please send us email at ncedcinfo@ncedc.org or fill out our comments form if you have questions or comments about these changes.


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