1. Global Seismograph Network - GSN:

DATES OF OPERATION:	21 Jun 2012 to Present.

SEISMOMETER TYPE AND ADC:
Streckeisen model STS-1/VBB. A three-component system for broadband, long
period, and very long period channels recorded at 20, 1, and 0.1 sps
respectively.  Quanterra Q330HR data acquisition system.

CALIBRATION EPOCH:	2012, 173 - Present
                                
DIGITAL FORMAT:
32 bit integer data words for all broadband (20 sps), long period (1 sps),
very long period (.1 sps), and short period (40 sps) channels. >

Click on any of the following items for further information.

• Amplitude Response to Ground Velocity
• Seismic Noise Study graph information
  • Seismic Noise Level - Annual
  • Seismic Noise Level - Seasonal/Diurnal
• Channel Data