NM (Catalog)

Extent

The NM network authoritative polygon covers the western part of the CERI catalog with the following vertices:
37.6270 -86.6797
36.6270 -88.6203
33.0000 -88.4165
33.0000 -93.5000
38.0000 -93.5000
40.0000 -91.5000
40.0000 -85.0000
38.8000 -85.0000
37.6270 -86.6797

Contributors

• The NM network code includes contributions from St Louis University and the USGS and, more recently the AG network funded by the Arkansas Geological Survey.
• The SE network code includes contributions from Virginia Tech, the University of South Carolina and others (see SEUSSN at the VA Tech website).
• Current real-time data from several sources is used to produce event information. Those contributors include
• NM, CERI at the University of Memphis
• NM, St. Louis University
• AG, Arkansas Geological Survey
• ET, CERI at the University of Memphis
• KY, University of Kentucky
• CO, University of South Carolina
• SE, Virginia Tech
• TA, IRIS
• US, USGS
• N4, IRIS/USGS

Note 1:

Because the network has evolved over the years, there is no guarantee of consist ency in detection threshold, magnitude determination or region covered. The data in this catalog come from numerous sources:

• 1974-1992: TEIC earthquake bulletin and St Louis Regional Catalog
• 1993-1994: Saint Louis University and Central Mississippi Valley Earthquak e Bulletins
• 1995-present: earthquakes reported by SLU and/or CERI
• 2003-present: addition of CERI East TN earthquakes and contributions from the SEUSSN bulletins