1. Global Seismograph Network - GSN:

DATES OF OPERATION:	07 Mar 1996 to Present.

SEISMOMETER TYPE AND DATA ACQUISITION SYSTEM:
Streckeisen Model STS-1/VBB 3 component system for broadband, mid period and
very long period channels.  IDA MK7 data acquisition system.

CALIBRATION EPOCHS:	1996, 067 - Present

DIGITAL FORMAT:
16 bit integer data words for all broadband (20 sps) data.  32 bit integer
words for very long period (0.1 sps) and synthesized long period (1 sps) data.

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