Earthquake Hazards Program: >Data Available Through FTP

There are several different data files available through anonymous ftp to ghtftp.cr.usgs.gov

PDE Monthly Listing Files

The monthly listing from 1995 to the most recent PDE monthly are available in the /pde/manuscript directory. The filenames are monYYYYMM.lis, where YYYY is the year and MM is the month (e.g. mon199801.lis). Beginning March 2001, the maps that were originally published in the paper listing are now available electronically. They are postscript files and are named monYYYYMMak.ps for earthquakes in Alaska, monYYYYMMus.ps for earthquakes in the United States, and monYYYYMMworld.ps for worldwide earthquakes. The earthquake focal mechanisms are in monYYYYMMfm.ps

Monthly Bulletin (EDR) Files

Monthly Earthquake Data Report (EDR) bulletin files are available in several formats in subdirectories of the /edr directory. The filenames are isfbulYYYYMM.dat, mchedrYYYYMM.dat.Z and ofedrYYYYMMN.dat, where YYYY is the year, MM is the month and N is a sequence number, and all contain the EDR data. Check the read_me file for more information. The mchedr format is available from 1990 and the isf format is available from 1999.

The /edr directory also contains the following miscellaneous monthly files:

See the read_me file for more information about these files.

Monthly EHDF Files

The monthly EHDF files from 1990 to the current monthly bulletin in-press are available in the /pde directory. These are similar to the PDE monthly bulletins but are in a different format. The filenames are ehdfYYYYMM.dat, where YYYY is the year and MM is the month (e.g. ehdf199001.dat). Check the read_me file for more information. The ehdf.txt file contains the format.

PDE Weekly Listing Files

The weekly listings from 2003 to the current PDE are available in the /weekly/manuscript directory. The filenames are pdeYYYY##w.lis, where YYYY is the year and ## is the corresponding WEEK of the year (e.g. pde199801w.lis).

Weekly EHDF and EDR Files

Both the PDE weekly EHDF and EDR files from 2003 to the current PDE are available in the /weekly directory. The filenames are ehdfYYYY##w.dat and mchedrYYYY##w.dat, where YYYY is the year and ## is the corresponding WEEK of the year (e.g. ehdf199641w.dat and mchedr199641w.dat). The QED file, which is updated daily, contains the previous 3 weeks of events and is called qedevents.txt. The phase data file for the QED is called mchedrqed.dat. Check the read_me file for more information.

Station Listing

The current station listing is available in the /stations directory with the filename station.lis. Check the readme.txt file for more information. Station information is also available from the NEIC Web Site: Station Book.

Flinn-Engdahl Regionalization Files

The directory /feregion contains the data files for the 1995 (latest) revision of the Flinn-Engdahl (F-E) seismic and geographical regionalization scheme, which is used by many seismologists to associate seismological data to general regions of the Earth. This directory also includes a set of Fortran programs to install and run the regionalization package. Note that the file names.asc contains the region names currently used by the USGS/NEIC (World Data Center for Seismology, Denver). See our Region Name page for references and some disclaimers.

ANSS/NEIC Combined Earthquake List

Using the publically available software QDDS and QDM, we maintain a catalog of earthquakes that merges the catalogs of the NEIC with those of the US Advanced National Seismic System (ANSS) regional networks. merge_14.nts contains data for the past 14 days. The catalog is preliminary and dynamic. It is continually being updated as event parameters are updated, new events are added, and, occasionally, events are deleted. Although the events contributed by the NEIC are always reviewed by an analyst, some of the regional networks submit computer generated solutions initially, which are later replaced by reviewed solutions. The format for this ascii file, which is intended to be read by computer programs rather than scanned by the human eye, is given here.

This file is also provided on our ftp site in a more easily read format as cnss_14.fing.

finger quake@gldfs.cr.usgs.gov

This "finger" command normally displays the near-real-time Earthquake Bulletin provided by the National Earthquake Information Center. Due to a "security" filter placed on the USGS's Internet transit service, finger no longer works from many locations.

Note the differences between Solaris, WinNT, and VMS.

FTP Tested on SUN Solaris
ftp -n < ftp.answers

The contents of the file ftp.answers are:

open ghtftp.cr.usgs.gov
user anonymous yourname@somewhere.com
cd pub/cnss
get quake
quit

FTP Tested on Windows NT 4 and Windows 95
ftp -n -s:ftp.ans

The contents of the file ftp.ans are:

open ghtftp.cr.usgs.gov
user anonymous
yourname@somewhere.com
cd pub/cnss
get quake
quit

FTP Tested on OpenVMS Alpha Version V7.1-1H2
DCL command lines:

assign ftp.input sys$input
ftp ghtftp.cr.usgs.gov /user=anonymous /password="yourname@somewhere.com"
deassign sys$input

The file named ftp.input contains the following two lines:

cd pub/cnss
get quake

One of these could replace your current calls to finger.