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EVIDENCE FOR THREE MODERATE TO LARGE PREHISTORIC HOLOCENE EARTHQUAKES NEAR CHARLESTON, S. C.

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Abstract

Earthquake-induced liquefaction features (sand blows), found near Hollywood, S. C. , have yielded abundant clasts of humate-impregnated sand and sparse pieces of wood. Radiocarbon ages for the humate and wood provide sufficient control on the timing of the earthquakes that produced the sand blows to indicate that at least three prehistoric liquefaction-producing earthquakes (m//b approximately 5. 5 or larger) have occurred within the last 7,200 years. The youngest documented prehistoric earthquake occurred around 800 A. D. A few fractures filled with virtually unweathered sand, but no large sand blows, can be assigned confidently to the historic 1886 Charleston earthquake.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
EVIDENCE FOR THREE MODERATE TO LARGE PREHISTORIC HOLOCENE EARTHQUAKES NEAR CHARLESTON, S. C.
ISBN:
0943198070
Volume
1
Year Published:
1986
Language:
English
Publisher:
Earthquake Engineering Research Inst
Publisher location:
El Cerrito, CA, USA
First page:
3
Last page:
13
Conference Title:
Proceedings of the Third U. S. National Conference on Earthquake Engineering.
Conference Location:
Charleston, SC, USA