Large Events in the 1811-12 Earthquake Sequence

The 1811-12 New Madrid earthquake sequence was dominated by three large shocks. Although we don't know the exact locations of the events, we can estimate their positions using information contained in local accounts and newspaper descriptions. By studying the observations recorded in newspapers and journals, Dr. Otto Nuttli estimated the location of the three largest events in the 1811-12 New Madrid earthquake sequence. Post-1974 seismicity is shown with gray circles and they nicely outline the main structures in the New Madrid Fault System.

SLU EQ Flyers | SLU EQ Center | Earth & Atmospheric Sciences Prepared by: Charles J. Ammon