1. Cooperative New Madrid Seismic Network:   [ NM ]

DATES OF OPERATION:  	27 Mar 1997 to Present

SEISMOMETER TYPE and ADC:
Guralp CMG-40T. ADC is Quanterra Model Q-380. ADC is Quanterra Model Q-380.

DIGITAL FORMAT:
24 bit integer data words for all broadband (20 sps), long period (1 sps) and
triggered (80 sps).
Range: +8,388,607 to -8,388,608 counts.

EVENT DETECTOR ALGORITHM:  
The Murdock event detector (Murdock, 1991) is used for all short period channels.

Click on any of the following items for further information.

• Channel Data
• Amplitude Response to Ground Velocity
• Pole-Zero Response in IRIS DMC Format
• Seismic Noise Study graph information
  • Seismic Noise Level - April 8, 1998
  • Seismic Noise Level - May 17, 1998
  • Seismic Noise Level - June 15, 1998
• Channel response history from SEED RESPONSE files

COMMENTS:
None.