OREGON STATE UNIVERSITY SEISMOLOGICAL BULLETIN NO. 3, JANUARY 1-MARCH 31, 1964.
Data rept. no. 17,
OREGON STATE UNIV CORVALLIS
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Oregon State University operates a World-Wide Standard Seismograph Station at Corvallis and a seismic station at Klamath Falls Oregon. The Corvallis station includes three short-period Benioff seismographs T sub o 1 sec, T sub g 0.75 sec, three long-period Sprengnether seismographs T sub o 30 sec, Tg 100 sec, and a small short-period vertical Benioff seismograph T sub o 1.0 sec, T sub g 0.2 sec to provide visual recording on the OSU campus. The Klamath Falls station consists of a small short-period vertical Benioff seismograph T usb o 1.0 sec, T sub g 0.2 sec, with visual recording on the campus of the Oregon Technical Institute. Tables are presented displaying the following data sudden beginning of motion, gradual beginning of motion, following phase of arrival, magnitude, depth of focus, and epicentral distance from Corvallis.