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Loma Prieta, California, Earthquake October 17, 1989. Extension cracks in the Marina District of San Francisco formed by the lateral spreading of a liquefied sandy landfill. Figure 25, U.S. Geological Survey Circular 1045.
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Loma Prieta, California, Earthquake October 17, 1989. Santa Cruz Area. Removal of debris while searching for victims at the Pacific Garden Mall. Slide XIII-5, U.S. Geological Survey Open-File Report 90-547.
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Loma Prieta, California, Earthquake October 17, 1989. Structures damaged in the Marina District of San Franciso. Damage due to ground failure of liquefied fill. Figure 24A, U.S. Geological Survey Circular 1045.
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Loma Prieta, California, Earthquake October 17, 1989. Los Gatos. Failure of the porch on a frame house. Slide VIII-7, U.S. Geological Survey Open-File Report 90-547.
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Loma Prieta, California, Earthquake October 17, 1989. Fremont Baylands. KGO radio transmission towers, built on Bay mud in a salt evaporation pond used by Leslie Salt Company. Note progressively less damage to the towers with increased distance from the viewer. Slide V-1, U.S. Geological Survey Open- File Report 90-547.
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Loma Prieta, California, Earthquake October 17, 1989. Oakland. Damaged reinforcement base from a support column of the Cypress viaduct of Interstate 880. 1989. Slide III-9, U.S. Geological Survey Open-File Report 90-547.
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Loma Prieta, California, Earthquake October 17, 1989. Oakland. Temporary support structures placed to prevent further collapse of the Cypress viaduct of Interstate 880. Slide III-11, U.S. Geological Survey Open-File Report 90-547.
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Loma Prieta, California, Earthquake October 17, 1989. Crack system near Summit Road, half a mile southwest of Highway 17. View is southeast toward a house showing the driveway dropped down relative to the garage. Figure 10-B, U.S. Geological Survey Circular 1045.
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Loma Prieta, California, Earthquake October 17, 1989. Sand boils formed by liquefaction in the Marina District of San Francisco. Figure 26, U.S. Geological Survey Circular 1045.
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Loma Prieta, California, Earthquake October 17, 1989. Sand boils at Oakland International Airport. Figure 28, U.S. Geological Survey Circular 1045.
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Loma Prieta, California, Earthquake October 17, 1989. Highway 17 in the Santa Cruz Mountains. Landslide debris filling both eastbound lanes near Summit Road. Slide XII-1, U.S. Geological Survey Open-File Report 90-547.
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Loma Prieta, California, Earthquake October 17, 1989. Scarps and cracks associated with the movement of deep-seated slumps. Scarp at the head of a block slide in a residential area of Brookdale in the Santa Cruz Mountains. The block slide moved approximately 1.5 feet downslope (to the right). Part of the house to the left of the scarp remained on undisturbed ground while the part to the right moved downslope on a slide block. Figure 22, U.S. Geological Survey Circular 1045.
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Loma Prieta, California, Earthquake October 17, 1989. Highway 17 in the Santa Cruz Mountains. Damaged lane separators. Slide XII-4, U.S. Geological Survey Open-File Report 90-547.
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Loma Prieta, California, Earthquake October 17, 1989. Oakland. Support column failure and collapsed upper deck on the Cypress viaduct of Interstate 880. Slide III-5, U.S. Geological Survey Open-File Report 90-547.
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Loma Prieta, California, Earthquake October 17, 1989. Los Altos. Collapsed five-story tower at St. Joseph's Seminary. Slide VII-2, U.S. Geological Survey Open-File Report 90-547.
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Loma Prieta, California, Earthquake October 17, 1989. Sand boils in irrigated fields near Hollister. Figure 29, U.S. Geological Survey Circular 1045.
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Loma Prieta, California, Earthquake October 17, 1989. Collapsed Cypress viaduct of Interstate 880 in Oakland. The second deck collapsed onto the first deck. Figure 30A, U.S. Geological Survey Circular 1045.
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Loma Prieta, California, Earthquake October 17, 1989. Cracks through a corral near Summit Road, about 1.1 miles southeast of Highway 17, along the southwest edge of an elongate, closed depression. Cracks are also found along the northeast edge of the same depression. Displacements on both sets of cracks deepened the depression. Figure 11, U.S. Geological Survey Circular 1045.
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Loma Prieta, California, Earthquake October 17, 1989. Watsonville area. Support column of the bridge across Struve Slough on Highway 1. Enlargement of the hole where the support enters the ground is an effect of lateral shaking. This caused the concrete to break up where the column joined the bridge and was instrumental in the roadbed collapse. 1989. Slide XIV-14, U.S. Geological Survey Open-File Report 90-547.
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Loma Prieta, California, Earthquake October 17, 1989. Highway 17 in the Santa Cruz Mountains. Landslide debris filling both eastbound lanes near Summit Road; foreground material is damaged lane separators. Slide XII-2, U.S. Geological Survey Open-File Report 90-547.