Filters: Tags: earthquakes (X)
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San Fernando Earthquake. February 1971. Collapsed overpass at interchange of Highways 5 (GOLDEN STATE FREEWAY), and 210 (FOOTHILL FREEWAY), seismic shaking, compression, and extension along length of roadway are all responsible for damage, view looking east. Overpass was completed but not all segments were yet in service. San Fernando Valley Juvenile Hall at right, Feb 11, 1971.
San Francisco, California, Earthquake April 18, 1906. Secondary cracks on the shore of Bolinas Lagoon. Plate 4-A, U.S. Geological Survey Bulletin 324; Figure 55, U.S. Geological Survey Professional paper 993.
San Fernando, California, Earthquake February 1971. Stud framing, showing holes torn in the tar paper exterior of a new frame house 0.3 mile east of Veterans Hospital. 1971.
San Francisco, California, Earthquake April 18, 1906. Atheneum Theatre and Post Office, in Santa Rosa April 1906.
Album caption: Slump in Union Street between Pierce and Steiner Streets. Photograph previously published in Lawson and others (1908, pl. 88B) with caption "Slip of a fill.on Union Street, just west of Steiner Street, San Francisco." City and County of San Francisco, California. 1906. Published as figure 53 in U.S. Geological Survey Professional Paper 993. 1978. (Not available from U.S.G.S. Photo Library. Photograph by H.O. Wood, courtesy of The Bancroft Library, University of California, Berkeley.)
San Fernando Earthquake, February 9, 1971, 6:01am PST. [Location centered at 34 degrees 24.67 minutes north, 118 degrees 24.04 west. Magnitude 6.6. Depth 8.4 km. The total surface rupture was roughly 19 km long with a maximum slip of 2 meters. Also known as the Sylmar Earthquake. This earthquake caused $500 million in property damage and 65 deaths, most deaths occurred at the Veteran's Administration Hospital.] Scarp in front of Foothill Nursing Home on Foothill Blvd, near Vaughn Street. The Nursing Home pictured was extensively damaged during the quake. View towards southeast. Feb 11, 1971.
Album caption and index card: Seismic Geyser, during an explosive thermal eruption. Note the trees that have been killed by the heat and eruptive activity. According to George D. Marler of the U.S. National Park Service, this geyser developed from a crack caused by the Hebgen Lake Earthquake of August 17, 1959. Yellowstone National Park, Wyoming. 1970.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Earthquakes,
National Parks,
Photographers,
Stacy, J.R.Collection,
Yellowstone National Park,
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.
Guatemala Earthquake 1976. Collapse of the dormitory-classroom unit of the newly built Catholic boy's school, Collegio San Javier, owing to the failure of some second story columns in the part of the building on the right. This three-story framed, reinforced concrete structure was designed and built to California Seismic Code specifications. There could have been major loss of life in these flattened second floor classrooms had the earthquake occurred during the day, rather than at night. 1976. Slide 46, U.S. Geological Survey Open-File Report 77-165.
Imperial Valley, California, Earthquake October 15, 1979. Arcuate incipient-slump scarp with 13 centimeters of vertical separation in the embankment at site 33 east of River Park in Brawley (location shown on Plate 1, professional paper 1254). View is southeast. Photo by T.L. Youd. Figure 182, U.S. Geological Survey Professional paper 1254.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 1979 Imperial Valley California Earthquake Collection,
Earthquakes,
Johnson, C.E. Collection,
Photographers,
photo print
Index card: Trucks and dozers on Madison Canyon slide cutting trough for Madison River. Montana earthquake. Madison County, Montana. September 1959.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Earthquakes,
Hamilton, W.B. Collection,
Hebgen Lake, Montana Earthquake 1959,
Madison County, Montana,
Photographers,
Album caption and index card: Hebgen Lake earthquake. Trace of Red Canyon fault scarp near the Blarneystone Ranch. Jeep is sitting on the edge of the road. Other edge of road is on the downthrown block just below the jeep's nose. Note subsidiary fractures in subsidence zone. This is the road I drove down the night of the earthquake. I happened to see the fault scarp and stopped the jeep in time. Elsewhere people drove over the fault scarp and damaged their cars. Gallatin County, Montana. August 1959.
Categories: Image;
Tags: Earthquakes,
Gallatin County, Montana,
Hebgen Lake, Montana Earthquake 1959,
Photographers,
Witkind, I.J. Collection,
Long Beach, California, Earthquake March 10, 1933. Alexander Hamilton Junior High School on State Street and Alameda in Long Beach. View showing damage to the Junior High School. March 20, 1933. Photo by W.L. Huber.
Categories: Image;
Tags: 1933 Long Beach California Earthquake Collection,
Earthquakes,
Huber, W.L. Collection,
Photographers,
photo print
San Fernando Earthquake. February 1971. Fence that spans part of the shear zone was shoved out over curb, view to northwest along southwest side of Bromont, this photo is nearly across the street from the house in Photo wreb0525 and both are about 100 feet southeast of the displaced curb in Photo wreb0524. Feb 11, 1970.
Album caption and index card: California earthquake. Road near Point Reyes Station, offset 20 feet by main fault; looking northwest. The shear zone is here 60 feet wide and traverses a swamp. The road was raised above the swamp by an embankment, and between the limits of the shear zone this embankment settled to the general level of the swamp, about 3 1/2 feet. Photography made April 28 before the road had been repaired. Point Reyes National Seashore,. Point Reyes quadrangle, Marin County, California. 1906. Published as plate 1-A in U.S. Geological Survey Bulletin 324. 1907. Handwritten note on album caption: Figure 313 in Introduction to Geology by E.B. Branson and W.A. Tarr.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Earthquakes,
Gilbert, G.K. Collection,
Marin County, California,
National Parks,
Photographers,
A model of the lower seismogenic depth distribution of earthquakes in the western United States was developed to support models for seismic hazard assessment that will be included in the 2023 USGS National Seismic Hazard Model. This data release presents a recalibration using the hypocentral depths of events M>1 from the Advanced National Seismic System Comprehensive Earthquake Catalog from 1980 to 2021. For higher precision and better resolution in the model, the data were supplemented with seismicity from southern California that was relocated by Hauksson and others (2012). Along the San Andreas Fault, the deepest seismogenic depths are located at 23 km around the Cholame segment, whereas the shallowest depths...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Geophysics,
Seismology,
USGS Science Data Catalog (SDC),
United States,
earthquake occurrences,
Album caption and index card: Hebgen Dam spillway. Note curve in concrete core dam. Montana earthquake area. Gallatin County, Montana. August 1959. (Aerial view).
Categories: Image;
Tags: Earthquakes,
Gallatin County, Montana,
Hebgen Lake, Montana Earthquake 1959,
Photographers,
Stacy, J.R. Collection,
Imperial Valley, California, Earthquake October 15, 1979. Slump and cracks at site 34 in River Park in Brawley (location shown on Plate 1, professional paper 1254). The slump near the New River shows 1 meter of vertical displacement. View is north. Photo by T.L. Youd. Figure 183-A, U.S. Geological Survey Professional paper 1254.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 1979 Imperial Valley California Earthquake Collection,
Earthquakes,
Johnson, C.E. Collection,
Photographers,
photo print
Peru Earthquake May 31, 1970. Damage from the flood wave at the power company camp near Huallanca, which is visible in background. The wave, 20 meters deep at this point, swept away homes that formerly covered the level area in this view and deposited a layer of mud and rocks. The fence posts in the foreground are bent in the direction of the flow. June-July 1970.
Categories: Image;
Tags: Earthquakes,
Peru,
Peru Earthquake May 31, 1970,
Photographers,
Plafker, G. Collection,
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.
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