1. Cooperative New Madrid Seismic Network:   [ NM ]

DATES OF OPERATION:  	04 May 2011 to Present

SEISMOMETER TYPE and ADC:
Guralp CMG5-TD . ADC is Guralp DM24.

DIGITAL FORMAT:
24 bit integer data words for all sample rates (100 sps) continuous, 
200 sps triggered, some 50s/s events.
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.

Further information:

• Channel Data
• Amplitude Response to Ground Velocity
• Pole-Zero Response in IRIS DMC Format
• Seismic Noise Study graph information
• Channel response history from SEED RESPONSE files

COMMENTS:
The SEED Response files indicate a start time of 2010244. The data
should be available at the IRIS DMC after this date.