This is the non-technical project summary for USGS Award 1434-HQ-98-AG-01941: " Collaborative Research: The University of Memphis, Saint Louis University: The Cooperative New Madrid Seismic Network." This agreement covers the SLU component of the CNMSN to perform network operations, and routine data processing, archiving, and dissemination for the purpose of seismic hazards evaluation and scientific studies in the New Madrid Seismic Zone. SLU routinely records, locates and produces bulletins for seismicity in and around the New Madrid Seismic Zone--the most seismically active region in the eastern U.S. Products produced under this agreement assist researchers in producing seismic hazard maps, structural hardening developments, and other seismic hazard mitigation research. We have recently placed increased emphasis on real-time regional seismic network data exchange and rapid information services to help reduce potential additional loss of life and property by providing timely information for efficient deployment of emergency services. Detailed information can be obtained from the Earthquake Center web site

Major developments during the year 2000 included

• Installation and operation of the USGS Earthworm system on the NT server at Saint Louis university and on Sparc workstations at Saint Louis University, the University of Indiana, the University of Memphis and the University of Arkansas, Little Rock. The primary earthworm server at Saint Louis University feeds the University of Memphis earthworm server and created the

  http://www.eas.slu.edu/Earthquake_Center/NM/EW/GIFS/welcome.html

  real time seismogram display. As earthwork software develops, this inter-connection of earthworm systems will provide real-time phase arrival times and real time locations
• Y2K and GPS epoch upgrades to data acquisition computers in the field and to data collection computers were successful.
• Seismic sensor evaluation continues
• Site preparation was begun for the Portageville, Missouri field station
• A noise study was performed at an alternate site near Bloomington, Indiana, bu running an STS-2 and Q380. The site was an astronomical observatory outside the city. Compared to the existing BLO site, the vertical component noise was significantly less at frequencies greater than 1.0 Hz. No evaluation could be made at lower frequencies because the sensor was in the telescope building; the instrument was very sensitive to operations of the telescope. If such a site were used, the instrument would have to be away from the telescope building.

  We were very interested in the performance at this site, since we have found a similar facility operated by the University of Western Kentucky outside Bowling Green, Kentucky.

• A 150 Gb RAID was installed for accessing the broadband data. The broadband data are also archived on CDROM's

  The instrument response history is given in IRIS dataless SEED format at

  ftp://ftp.eas.slu.edu/pub/CNMSN/nmrspon/

  Digital data are available in one-day SEED station-component archives at

  http://www.eas.slu.edu/Earthquake_Center/NM/data_archive/

• Development of 386BSD system to function as a internet packet filter was successful. This system sits between the Quanterra 380 and the host university's backbone to transmit only specific packets to the Quanterra so that the network address translation table does not overflow. This will significantly improve the reliability of Q380's with ethernet cards.