2011 Annual Meeting
Field Trip Information
The field trip will take place on Saturday, 16 April 2011 (the day following the close of the regular meeting program). Departure and return times are approximate.
At this time, the field trip is full. You may add your name to the waitlist through our secure online registration form. If those registered cancel, spots will be filled from the waitlist.
100% refund if cancellation is received before the online registration deadline. Field trip cancellations received after the deadline will received 100% refund IF another person fills the vacated place on the trip. Unfilled cancellations will be refunded only as funds allow.
Field Trip: Taking a New Look at the New Madrid Seismic Zone
Leaders: Heather R DeShon, CERI - University of Memphis,
Martitia P Tuttle, M.P. Tuttle and Associates,
Roy B. Van Arsdale, University of Memphis
During the winter of 1811-1812, the region of southeastern Missouri, northeastern Arkansas, and northwestern Tennessee was the locale of at least three large earthquakes associated with the New Madrid Seismic Zone. Although no major earthquake has occurred in the region since 1895, it remains the most seismically active area east of the Rocky Mountains and poses a serious threat to the metropolitan and agricultural areas of the central United States and to the numerous lifelines that pass through the region. On this field trip we will visit several sites exhibiting effects of the 1811-1812 and previous earthquake sequences and discuss recent seismological, geological, geophysical, and engineering related scientific results. Field trip stops will include trenched sand blows and buried forest resulting from earthquake-induced liquefaction, a trenched fault, Reelfoot Lake, Reelfoot scarp, a continuous GPS monitoring station, and a creek exposure of near-surface stratigraphic units. The New Madrid Seismic Zone is one of the most studied and debated intraplate earthquake sources worldwide. Significant time has been allotted for participants to examine geologic features and to discuss recent findings with investigators.
The trip will leave the downtown Marriot at approximately 7:30 AM and return between 5 and 6 PM. Box lunches will be provided. All stops are easily accessible. Attendees should wear shoes that can get muddy in trenches and on the short walks. Drive time between stops ranges from 30 minutes to 2 hours.
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