Basic Survey information -Client: EarthScope, Client Reps: Mark Zoback, Steve Hickman and Bill Ellsworth, -Area: Parkfield, California -Survey dates: April 30th to May 10th 2005 -Seismic datum: 670 m above msl. GL at the SAFOD well is 660.5m above msl. - Well name: SAFOD Well - Surface seismic source for zero offset: 5 lb of dynamite at 10 ft depth -Surface seismic source for offset shots: 80 lb of Pentolite (charge is 60 ft long) at 100 ft depth - Number of shot points recorded: 5 zero offset shots, 13 offset shots -Horizontal offsets recorded: 150 ? 15,000 ft (50 m ? 5,000 m) -Well information: Casing size: 9 5/8?, Casing weight: 47 lb/ft, drifted diameter 8.525? -Receiver array: P/GSI Cable 80-010, pod spacing: 15.2 m (50 ft), Phones: 15 Hz OYO Geospace SMC15-1850 Omni, 3C pod