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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.
Loma Prieta, California, earthquake. Many homeowners buttressed their foundations to prevent further damage from aftershocks in downtown Watsonville, California. October 17, 1989. Slide XIV-7, U.S. Geological Survey Open-File Report 90-547.
Loma Prieta, California, Earthquake October 17, 1989. Crack system near Summit Road, half a mile southwest of Highway 17. View is northwest. A wide zone of dominantly extensional cracks passes several feet in front of the house. Figure 10-A, U.S. Geological Survey Circular 1045.
Vent of a sand volcano produced by liquefaction is about 4 feet across. The strip spanning the vent is a conduit for the drip irrigation system. The furrow spacing in the strawberry field is about 4 feet on center. Loma Prieta, California, Earthquake October 17, 1989. Watsonville area. Slide XIV-2, U.S. Geological Survey Open-File Report 90-547.
Loma Prieta, California, earthquake. Houses not bolted down securely were easily dislodged from their foundations in downtown Watsonville, California. October 17, 1989. Slide XIV-6, U.S. Geological Survey Open-File Report 90-547.
Damaged approach and abutment of the bridge linking the Moss Landing spit to the mainland near the Moss Landing Marine Laboratory. Liquefaction of the beach and Salinas River deposits caused ground cracking and differential settlement. Loma Prieta, California, Earthquake October 17, 1989. Moss Landing. Slide XV-2, U.S. Geological Survey Open-File Report 90-547.
Loma Prieta, California, earthquake. Collapsed bridge section on Highway 1 at Struve Slough. Watsonville, California. October 17, 1989. Slide XIV-12, U.S. Geological Survey Open-File Report 90-547.
Loma Prieta, California, earthquake. Geologist exchanging information with rescue personnel in Redwood Grove in the Santa Cruz Mountains, California. October 17, 1989. Slide X-1, U.S. Geological Survey Open-File Report 90-547.
Loma Prieta, California, earthquake. The cement retaining walls along Highway 280 formed an accordion-like pattern as a result of compression. Los Altos, California. October 17, 1989. Slide VII-4, U.S. Geological Survey Open-File Report 90-547.
Loma Prieta, California, earthquake. Unfastened bookcases fell in an office building during the primary shock. Menlo Park, California. October 17, 1989. Slide VI-1, U.S. Geological Survey Open-File Report 90-547.
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.
Loma Prieta, California, earthquake. Books and an air-conditioning duct were dislodged during the earthquake. Menlo Park, California. October 17, 1989. Slide VI-2, U.S. Geological Survey Open-File Report 90-547.
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.
Loma Prieta, California, earthquake. Reinforcement bars lie at the base of the Cypress viaduct of Interstate 880 near 14th Street. Oakland, California. October 17, 1989. Slide III-3, U.S. Geological Survey Open-File Report 90-547.
Loma Prieta, California, earthquake. This house was dislodged and moved 0.75 meter (2.5 feet) from the cement stairway in downtown Watsonville, California. October 17, 1989. Slide XIV-10, U.S. Geological Survey Open- File Report 90-547.
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.
Landslide-displaced trees reflect earthquake-triggered slope failure along a coastal bluff in the New Brighton Beach area. Santa Cruz Area. Loma Prieta, California, Earthquake October 17, 1989. Slide XIII-12, 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. Slide XII-1, U.S. Geological Survey Open-File Report 90-547.
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.
Loma Prieta, California, Earthquake October 17, 1989. Larger of the two cracks that broke Morrill Road by left-lateral motion in both the 1906 San Francisco earthquake and 1989 Loma Prieta earthquake. The view of present-day Morrill Road is similar to 1906 view after the asphalt road had been patched, showing left-lateral displacement of the edge of the road. October 1989. Figure 13-C, U.S. Geological Survey Circular 1045.
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