CHARACTERISTICS OF ROCK MOTIONS DURING EARTHQUAKES

ROCK MOTIONS DURING EARTHQUAKES ARE CHARACTERIZED IN TERMS OF THE MAXIMUM AMPLITUDE OF ACCELERATIONS, THE PREDOMINANT PERIOD OF THE MOTIONS, AND THE DURATION OF THE MOTIONS. THESE CHARACTERISTICS DEPEND MAINLY ON THE EARTHQUAKE MAGNITUDE AND DISTANCE OF THE SITE FROM THE ENERGY RELEASE ZONE. AVAILABLE DATA RELATING THE ROCK MOTION CHARACTERISTICS TO THE EARTHQUAKE MAGNITUDE AND THE DISTANCE TO THE CAUSATIVE FAULT ARE PRESENTED AND USED TO ESTABLISH A GENERAL PROCEDURE FOR ASSESSING THE MAXIMUM ACCELERATION, THE PREDOMINANT PERIOD, THE DURATION OF SHAKING AND THE TIME HISTORY OF ACCELERATIONS DEVELOPED DURING ANY GIVEN EARTHQUAKE. FOR EXAMPLE, THE ROCK MOTIONS AT THE EL CENTRO SITE (FOR THE 1940 EL CENTRO EARTHQUAKE) ARE ESTIMATED USING THE PROPOSED PROCEDURE AND INCORPORATED IN ANALYSES OF THE RESPONSE OF THE SITE. THE COMPUTED SURFACE MOTIONS ARE IN GOOD AGREEMENT WITH THOSE RECORDED DURING THE 1940 EL CENTRO EARTHQUAKE. /ASCE/

• Supplemental Notes:
  • Vol 95, No SM5, PROC PAPER 6783, PP 1199-1218, 21 FIG,
• Authors:
  • Seed, H B
  • Idriss, I M
  • Kiefer, F W
• Publication Date: 1969-9

Media Info

• Serial:
  • Journal of Soil Mechanics & Foundations Div

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Amplitude (Physics); Earthquakes; Magnitude; Motion; Rockslides; Time
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00235988
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 2 1971 12:00AM