Coalescent or linear blows obstructing drainage in the Arkansas district. Sand blows of the New Madrid earthquake. Blytheville. Mississippi County, Arkansas. 1904.
Sand blow (sand volcano) of craterlet type in area of disturbance, Caruthersville. New Madrid earthquake. Pemiscot County, Missouri. 1904.
Earthquake fissure filled with intruded sand, formed at the time of the New Madrid earthquake. Mississippi County, Arkansas, 1904.
Landslide trench and ridge in the Chickasaw bluffs, east of Reelfoot Lake, resulting from the New Madrid Earthquake. Obion County, Tennessee.
Landslide scarps in Chickasaw Bluffs, east of Reelfoot Lake. New Madrid earthquake. Obion County, Tennessee. 1904.
Trees tilted by New Madrid earthquake, Chickasaw bluffs east side of Reelfoot Lake. Note twist of trees into upright position.
Trees with double sets of roots. Elevated trees left by scooping out of sand by overflowing Mississippi waters south end of Reelfoot Lake. The surface is now about at its original level and the original tree trunk can be seen continuing down to the level of the ground. Later the tree was buried by sand to a depth of 5 feet and new roots formed. Still later the sand was removed. New Madrid earthquake. Lake County, Tennessee. 1904.
Lower end of Reelfoot Lake, Tennessee, showing trunks of trees killed when the land was submerged by the December 16, 1811, northeast Arkansas earthquake. (Photograph by M.L. Fuller taken about 100 years after the earthquake.)
Photos from the Earth Science Photographs from the U.S. Geological Survey Library, by Joseph K. McGregor and Carl Abston, U.S. Geological Survey Digital Data Series DDS-21, 1995.