1. Global Seismograph Network - GSN:

DATES OF OPERATION:	27 Aug 1996 to Present.

SEISMOMETER TYPE AND ADC:
Teledyne Brown Model KS54000 borehole 3 component system for broadband, long
period, very long period channels continuously recorded at 20, 1, and 0.1 sps
respectively.  Gurlap systems model CMG-3T 3 component seismometer for short
period channels continuously recorded at 40 sps. IDA MK7 data acquisition
system.

CALIBRATION EPOCHS:	1996, 240 - Present

DIGITAL FORMAT:
32-bit integer data words for broadband (20 sps), long period (1 sps), very
long period (0.1 sps), and short period (40 sps) channels.

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