1. Global Seismograph Network - GSN:  [ IU ]

DATES OF OPERATION: 21 Mar 1996 to present. 

SEISMOMETER TYPE & ADC:
Streckeisen STS-1 very broad band seismometer and Kinemetrics FBA-23 low-gain
accelerometer. ADC is Quanterra QX80.

DIGITAL FORMAT:
24 bit integer data words for all broadband, long period, very long period and
ultra long period channels.  Range: +8,388,607 to -8,388,608 counts
16 bit integer data words for mass position and all environmental channels.
Range:  +32767 to -32768

EVENT DETECTOR ALGORITHM:
The Murdock event detector (Murdock, 1991) is used for the event detected compon
ents.

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