00641453

Component

http://onlinepubs.trb.org...trr/1993/1411/1411-007.pdf

https://scholar.google.co...Pond&publication_year=1993

In regions of infrequent seismicity where strong-motion data are unavailable, seismic parameters for engineering design are commonly inferred from historical intensity data. However, historical data often prove inadequate, as demonstrated by recent studies of relict liquefaction features. In appropriate environments, seismic analysis of liquefaction features using geological and geotechnical engineering procedures provides an additional means of estimating the shaking severity of past earthquakes, including prehistoric events. The procedure first requires a search for relict liquefaction features in areas where past strong earthquakes are suspected. Geotechnical parameters are then measured at sites where liquefaction features are found, and the magnitude and peak accelerations required to produce the features are estimated. Where a thorough field search of liquefiable sediments reveals no evidence of disturbance, upper limits can still be placed on the maximum possible past ground motions. Studies to estimate past ground motions during the Holocene Epoch (the past 10,000 years) have been undertaken in the eastern and central portions of the United States. In the eastern United States, this analysis suggests that the ground motions of the Charleston, South Carolina, earthquake of 1886 were lower than those suggested by interpretation of Modified Mercalli intensity data. In the central United States, preliminary analysis of liquefaction features in southern Indiana and Illinois shows that a very strong prehistoric earthquake or earthquakes occurred in the Wabash Valley seismic zone, far from the epicentral region of the 1811-1812 New Madrid earthquakes.

This paper appears in Transportation Research Record No. 1411, Earthquake-Induced Ground Failure Hazards. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01403261

English

p. 53-60

1993

Transportation Research Record

030905558X

Figures (6) ; References (27)

Earthquakes; Engineering geology; Geotechnical engineering; History; Injury severity; Liquefaction; Seismicity

Seismic regions; Severity

Central United States; Eastern States; New Madrid Seismic Zone

Geotechnology; Highways; History; I42: Soil Mechanics

TRIS, TRB

Jan 27 1994 12:00AM

• CHARACTERIZING FAULT RUPTURE HAZARDS FOR DESIGN OF BURIED PIPELINES
• EFFECTS OF THREE-DIMENSIONAL BEDROCK TOPOGRAPHY ON EARTHQUAKE MOTIONS IN SEDIMENTARY BASINS
• ESTIMATION OF EARTHQUAKE-INDUCED PILE BENDING IN A THICK PEAT DEPOSIT
• LIQUEFACTION-INDUCED DAMAGE TO BRIDGES
• PALEOLIQUEFACTION FEATURES AS INDICATORS OF POTENTIAL EARTHQUAKE ACTIVITY IN THE SOUTHEASTERN AND CENTRAL UNITED STATES
• PREDICTING EARTHQUAKE-INDUCED LANDSLIDE DISPLACEMENTS USING NEWMARK'S SLIDING BLOCK ANALYSIS
• SEISMIC PILE FOUNDATION STIFFNESSES AT CYPRESS STREET VIADUCT
• SOIL AND FOUNDATION CONDITIONS AND GROUND MOTION AT CYPRESS STREET VIADUCT