Soil Liquefaction in the East Bay During the Earthquake: Figure 28- USGS WR CMG

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The Loma Prieta, California, Earthquake of October 17, 1989—Liquefaction
Soil Liquefaction in the East Bay During the Earthquake

Figure 28

Plots of soil-liquefaction potential from Arias intensity versus cyclic-stress-ratio method.

Assessment of soil-liquefaction potential from Arias intensity versus cyclic-stress ratio method. A, Arias intensity within soil column versus normalized 60-percent-hammer-efficiency blowcount for sites in the United States and Japan, with fines-content correction to equivalent "clean sand." B, Cyclic-stress ratio versus normalized 60-percent-hammer-efficiency blowcount for Loma Prieta study sites.
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