TY - RPRT TI - Orientation of three-component geophones in the San Andreas Fault observatory at depth Pilot Hole, Parkfield, California AU - V. Oye AU - W.L. Ellsworth PY - 2005 DO - 10.1785/0120040130 UR - https://pubs.usgs.gov/publication/70029192 ID - 70029192 ER -