SEISMIC PARAMETERS FROM LIQUEFACTION EVIDENCE

The Charleston, South Carolina, earthquake of 1886 is believed to be the largest earthquake to occur on the East Coast in historic times. However, the authors of this technical paper use field reconnaissance, historical research, standard penetration testing, cone penetration testing, laboratory testing, and other analytical work to prove that the 1886 earthquake was less powerful than originally thought. Recent field studies led to the discovery of relict liquefaction features in soil exposures excavated in the Charleston area. The studies indicate that some of the liquefaction features were caused by the 1886 event, but many were caused by prehistoric earthquakes. The geotechnical data and liquefaction evidence were used to back-calculate the shaking/ground motion levels of the 1886 earthquake. The prediction methods used in this study could be valuable to other regions of infrequent seismicity in estimating past ground motions.

Language

  • English

Media Info

  • Features: Appendices; Figures; References;
  • Pagination: p. 1345-61
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00665991
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 10 1994 12:00AM