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/MCGEE.
For further information on these recordings refer to:
Archuleta, R. (1986). Downhole recordings of seismic radiation, Earthquake Source Mechanics, Geophys. Monograph 37 (Maurice Ewing 6), S. Das, J. Boatwright, and C. Scholz (Editors), AGU, Washington, D.C., pp. 319-329.
Seale, S. and Archuleta, R. (1988). Site effects at McGee Creek, California, Earthquake Engineering and Soil Dynamics II -- Recent Advances in Ground-Motion Evaluation, Proc. of the A.S.C.E. Specialty Conferenece, 27-30 June, Park City, Utah, pp. 173-187.
Seale, S. and Archuleta, R. (1989). Site amplification and attenuation of strong ground motion, BSSA, Vol. 79, No. 6, pp. 1673-1696.
The GEOS Home Page is at /GEOS/geos.html
The URL of this page is /GEOS/MCGEE/mcgee.html
e-mail: glassmoyer@usgs.gov
or address:
Gary Glassmoyer
345 Middlefield Road M/S 977
Menlo Park, California 94025