T LE aQFlu GL- R-90-0306 ENVIRONMENTAL RESEARCH PAPERS, NO. 1071 AD-A229 915 Proceedings of the 7th Annual DARPA/AFGL Seismic Research Symposium, 6-3 May 1985 Editor: JAMES F. LEWKOWICZ 8 November 1990 ti Approved for public release; distribution unlimited. g EARTH SCIENCES DIVISION PROJECT 2309 GEOPHYSICS LABORATORY fHANSCOM AFB, MA 01731-5000 90 12 3 015,