Helicorder readings for MO, IL, IN, TN, KY, AR
AFTER levee blasts 1 and 2:
Helicorder readings after levee blast #1 only:
Seismic Readings from May 2, 2011 and May 3, 2011, just following the time of each of New Madrid Floodway Army Corps of Engineers Blasts.
To the untrained eye - as a professional photographer, I feel the readings may indicate stress points identified by the blast.
When you follow the source links you will see that not all areas were registering the blast.