1. Global Seismograph Network - GSN:

DATES OF OPERATION:     19 Apr 2010 to Present.

SEISMOMETER TYPE AND ADC:
Streckeisen model STS-1/VBB 3 component system for broadband and long period
channels recorded at 20 sps and  1 sps, respectively.
Trillium 240 seismometer for short period and long period channels
recorded at 40 sps and 1 sps, respectively.
Episensor strong motion sensor recorded at 1 sps and 100 sps.
Quanterra Q330HR data aquisition system.

CALIBRATION EPOCHS:     2010, 109 - Present

DIGITAL FORMAT:  32 bit integer data words for broadband (20 sps), long period
(1 sps), and short period (40 sps) channels.
16-bit integer data words for extremely short period (100 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