skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Geoarchaeological evidence of strong prehistoric earthquakes in the New Madrid (Missouri) seismic zone

Journal Article · · Geology; (USA)
 [1]
  1. Army Engineers Waterways Experiment Station, Vicksburg, MS (USA)

Sand blows and fissures that cover >10,500 km{sup 2} in northeastern Arkansas and southeastern Missouri attest to the severity of the 1811-1812 earthquake series in the New Madrid seismic zone. However, except for one occurence near New Madrid, Missouri, the region has been devoid of any evidence of other major shocks for at least 1.3 ka prior to 1811 and possibly for >9 ka. Stratigraphic relations and radiocarbon dating at a recently excavated archaeological site near East Prairie, Missouri, have revealed liquifaction phenomena attributable to a shock dated to within about 100 yr prior to A.D. 539 and a probable second one dated between about A.D. 539 and 991.

OSTI ID:
5524243
Journal Information:
Geology; (USA), Vol. 19:4; ISSN 0091-7613
Country of Publication:
United States
Language:
English