U.S. Geological Survey General Earthquake Observation System National Strong Motion Program

May 23, 1995 Oklahoma City Alfred P. Murrah Federal Building Demolition GEOS Data

This site contains explosion data collected by the United States Geological Survey (USGS) General Earthquake Observation System (GEOS) project in Menlo Park, California.

The binary data are available via anonymous FTP from the National Strong Ground Motion FTP-server: https://ca.water.usgs.gov/nsmp/ in directory GEOS/OKDEM.

Tables

Station list
Event list
Ordered Arrival list
Trigger table for 1 or more triggers

For further information on these recordings refer to:

Dietel, Christopher (1995). Digital seismic recordings of the May 23, 1995, demolition of the Alfred P. Murrah Federal Building, Oklahoma City, Oklahoma, U. S. Geological Survey, Open-File Report 95-594, 14 pages.

Holzer, Thomas L., Joe B. Fletcher, Gary S. Fuis, Trond Ryberg, Thomas M. Brocher, and Christopher M. Dietel (1996). Seismograms offer insight into Oklahoma City bombing, Eos Vol. 77, No. 41, October 8, 1996, pp. 393, 396-397.

U.S. Department of the Interior
The USGS Home Page is at http://www.usgs.gov
The USGS Geologic Division Home Page is at http://geology.usgs.gov
The USGS National Strong Motion Program Home Page is at http://earthquake.usgs.gov/monitoring/nsmp

The GEOS Home Page is at /GEOS/geos.html
The URL of this page is /GEOS/OKDEM/okdem.html
e-mail: glassmoyer@usgs.gov
or address:
Gary Glassmoyer
345 Middlefield Road M/S 977
Menlo Park, California 94025