2.  Seismic Research Observatory - SRO:  [ SR ]

DATES OF OPERATION:  01 Jul 1977 to 18 Aug 1992

SEISMOMETER TYPE
Teledyne-Geotech Model 36000 borehole seismometer.

DIGITAL FORMAT:
16 bit gain-ranged data words for all components.  Range: +2,096,1128 to
-2,097,152 counts.

EVENT DETECTOR ALGORITHIM:
The Murdock event detector (Murdock 1983) was installed on 03 May 1993.
Prior to 1983 an event detector developed by the Unitech Corp., Austin,
Texas was used.  This detector was not documented.
 
Click on any of the following items for further information.
 

• Channel Data
• Amplitude Response to Ground Velocity
• Seismic Noise Study graph information

• Seismic Noise Level - Annual
• Seismic Noise Level - Seasonal/Diurnal

COMMENTS:
A complete description of the SRO system can be found in Peterson et al (1976).
21 May 1984: The six second notch filter was removed, and the short period
horizontals were added on this date.  This station was inoperative from 23 May
1982 through 31 Jan 1984.