1. Global Seismograph Network - GSN:

DATES OF OPERATION:     18 Apr 2012 to Present.

SEISMOMETER TYPE AND ADC:
Teledyne Brown Model KS-54000 borehole, 3-component system for broadband and long
period channels recorded at 20 sps and 1 sps, respectively.
Gurlap Systems model CMG-3T 3-component siesmometer for short-period channels and
long period channels recorded at 40 sps and 1 sps, respectively.
Kinemetrics FBA-23 3-component force balance accelerometer recorded at 1 sps continuous
mode and at 100 sps triggered mode.
Quanterra Q330HR data acquisition system.

CALIBRATION EPOCHS:     2012, 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) triggered
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