Published by Geophysics Group, Oregon State University, Corvallis, OR, 1976
Softcover. Condition: Very Good. 8-1/2 x 11 Softcover; 89pp; Velo-bound photocopied pages, covers clean, title label to front with previous owner's name in pencil to label, a few corrections in pencil to text, binding is tight, VG condition. Scarce, vintage report on an investigation of the Deschutes Valley, Oregon earthquake of April 12, 1976. Illustrated with diagrams & maps.