Distribution and Dating of Prehistoric Earthquake Liquefaction in the Wabash Valley of the Central U.S

Autor: Michael D. Labitzke, Patrick J. Munson, Ned K. Bleuer, Cheryl Ann Munson
Rok vydání: 1992
Předmět:
Zdroj: Seismological Research Letters. 63:337-342
ISSN: 1938-2057
0895-0695
DOI: 10.1785/gssrl.63.3.337
Popis: Earthquake-induced paleoliquefaction features are exposed in eroding river banks at 24 sites in the lower and central Wabash Valley. North-south distribution of features is at least 165 km. Sites with very large dikes (60–250 cm wide) suggestive of lateral spreads are found near the center of the distribution and extend over an area about 35 km in diameter. Stratigraphy, sedimentology, pedology, and archaeological associations suggest that all liquefaction resulted from a single, large, middle Holocene earthquake with an epicenter in the vicinity of Vincennes, Indiana.
Databáze: OpenAIRE