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Bass Islands Dolomite outcrop with stalactites in a cave on South Bass Island, Put-In-Bay Township, Ottawa County, Ohio. This area has dolomite, anhydrite, gypsum, salt and shale lithologies. Bedrock is from the Silurian Geologic Period. The slide image was created in 1952 by Philip M. Smith for the Ohio Cave Survey Project. The Ohio Cave Survey Project was formalized in 1952. The Central Ohio Grotto of the National Speleological Society in cooperation with the Ohio Geological Survey established a comprehensive survey of Ohio caves and caverns. The location is approximate to the center of the island.
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The purpose of this study is to evaluate tsunami hazard for the community of Seward and northern Resurrection Bay area, Alaska. This report will provide guidance to local emergency managers in tsunami hazard assessment. We used a numerical modeling method to estimate the extent of inundation by tsunami waves generated from earthquake and landslide sources. Our tsunami scenarios included a repeat of the tsunami of the 1964 Great Alaska Earthquake, as well as tsunami waves generated by two hypothetical Yakataga Gap earthquakes in northeastern Gulf of Alaska, hypothetical earthquakes in Prince William Sound and Kodiak asperities of the 1964 rupture, and local underwater landslides in Resurrection Bay. Results of numerical...
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Potential tsunami hazards for the Fox Islands communities of Unalaska/Dutch Harbor and Akutan were evaluated by numerically modeling the extent of inundation from tsunami waves generated by hypothetical earthquake sources and taking into account historical observations. Worst-case hypothetical scenarios are defined by analyzing results of a sensitivity study of the tsunami dynamics related to various slip distributions along the Aleutian megathrust. The worst-case scenarios for Unalaska and Akutan are thought to be thrust earthquakes in the Fox Islands region with magnitudes ranging from Mw 8.8 to Mw 9.1 that have their greatest slip at 30-40 km (18-25 mi) depth. We also consider Tohoku-type ruptures and an outer-rise...
Landslide at the Ludlow Avenue viaduct for Mill Creek in Cincinnati, Hamilton County, Ohio. Unit lithology in the area is interbedded shale and limestone. Bedrock is from the Ordovician Geologic Period. The image was taken on October 19, 1986.
Looking west at a landslide that destroyed part of Interstate 70 at mile marker 168.9 near New Concord, Muskingum County, Ohio. The image was taken by by Michael C. Hansen on October 15, 1986.
A view of slump down from the Monticello Village Apartments landslip in Athens, Athens County, Ohio. The Monticello Village Apartments was a complex of fourteen to sixteen buildings when construction was finished in 1968. The level area on which the apartment buildings were constructed was fashioned from a cut on the hillside in the Clarksburg red bed. The mudstone removed in this cut was used as fill on the edge of the hill in order to expand the level area for apartment construction. On November 4, 1972, the slope failed, causing the destruction of a 150 meter section of Hastings Road in the location of Ohio State Route 32. On November 7, 1972, four buildings were evacuated after additional rapid movement of the...
A view of Monticello Village Appartments slump from above at Building 14 at the complex in Athens, Athens County, Ohio. The Monticello Village Apartments was a complex of fourteen to sixteen buildings when construction was finished in 1968. The level area on which the apartment buildings were constructed was fashioned from a cut on the hillside in the Clarksburg red bed. The mudstone removed in this cut was used as fill on the edge of the hill in order to expand the level area for apartment construction. On November 4, 1972, the slope failed, causing the destruction of a 150 meter section of Hastings Road in the location of Ohio State Route 32. On November 7, 1972, four buildings were evacuated after additional...
A roadcut with slump along the United States Highway 33 bypass of Athens, Athens County, Ohio. The highway is viewed from the Strouds Run Road overpass. The image was made by Michael C. Hansen.
Categories: Physical Item; Tags: Landslides, Slides
Scarp caused by the landslide that developed during construction of Ohio State Route 32 near Jasper in Pike County, Ohio. The image was taken on March 11, 1972.
Categories: Physical Item; Tags: Landslides, Slides
Shore erosion at Blackmore Road along the Lake Erie shoreline in Perry Township, Lake County, Ohio. The image was taken by David K. Webb on May 27, 1970.
Categories: Physical Item; Tags: Erosion, Lakes, Slides
Drilling a seismic borehole for the National Seismic Network at Mendenhall Laboratory on the main campus of The Ohio State University, Columbus, Franklin County, Ohio. Sprowls Drilling Company of Sunbury, Ohio, did the drilling work for the borehole. At a depth of 125 feet, in the Columbus Limestone, a cavern was encountered. An unsuccessful attempt was made to plug the cavern. The site was abanonded as a location in the United States Geological Survey's nationwide network of seismographs because of the condition of the limestone on the campus of The Ohio State University. The image was taken by Michael C. Hansen in August 1993.
The saw yard at the Waller Brothers Stone Company's Buena Vista Sandstone quarry operation near McDermott, Scioto County, Ohio. Unit lithology in this area is shale interbedded with siltstone, sandstone and conglomerate of the Cuyahoga Formation. Bedrock is from the Mississippian Geologic Period. The photograph was taken on September 3, 1969 probably by David K. Webb.
Buena Vista Sandstone and Portsmouth Shale at the Waller Brothers Stone Company's operation near McDermott, Scioto County, Ohio. Unit lithology in this area is shale interbedded with siltstone, sandstone and conglomerate of the Cuyahoga Formation. Bedrock is from the Mississippian Geologic Period. The photograph was taken in 1968 by Ralph J. Bernhagen.
Quarrying Buena Vista Sandstone at the Waller Brothers Stone Company's operation near McDermott, Scioto County, Ohio. Unit lithology in this area is shale interbedded with siltstone, sandstone and conglomerate of the Cuyahoga Formation. Bedrock is from the Mississippian Geologic Period. The photograph was taken in 1952 by John H. Melvin.
Quarriying Buena Vista Sandstone the Taylor Stone Company operation near McDermott, Scioto County, Ohio. Unit lithology in this area is shale interbedded with siltstone, sandstone and conglomerate of the Cuyahoga Formation. Bedrock is from the Mississippian Geologic Period. Location is approximate to west of McDermott, Scioto County, Ohio.
Berea Sandstone Quarry No. 7 north of South Amherst, Amherst Township, Lorain County, Ohio. Bedrock is from the Devonian Geologic Period. The Amherst area quarries were operated by Cleveland Quarries Company. This photograph of operations at the quarry was taken in 1978.
Quarry operations for the Massillon sandstone of the Pottsville Group at the Briar Hill Stone Company near Glenmont, Holmes County, Ohio. This area has shale, siltstone, sandstone, conglomerate, limestone and coal lithologies. Bedrock is from the Pennsylvanian Geologic Period. The photograph was taken in June 1996.
The Central Silica Company east of Glenford, Perry County, Ohio. The area of the quarry has shale, siltstone, sandstone and conglomerate lithologies of the Pottsville Group-Sharon sandstone/conglomerate. Bedrock is from the Pennsylvanian Geologic Period. The image was taken during a teachers workshop field trip in summer 1988.
Fault plane breccia in the Peebles Dolomite at the Plum Run Stone quarry located two miles east of Peebles in Adams County, Ohio. This area has dolomite, shale, limestone and sandstone lithologies. Bedrock is from the Silurian Geologic Period. The image was made by Michael C. Hansen in 1978.
A fault in the Vanport limestone at SME Bessener, Inc., in Poland Township, Mahoning County, Ohio. Bedrock is from the Pennsylvanian Geologic Period. The image was taken by Clark L. Scheerens in 1985.


map background search result map search result map South Bass Island, Ottawa County, Ohio, 1952 Landslide in Cincinnati Hamilton County, Ohio, 1986 Landslide in Muskingum County, Ohio, 1986 Landslide at the Monticello Village Appartments, Athens County, Ohio, 1972 Landslide at the Monticello Village Appartments, Athens County, Ohio, 1972 Landslide in Pike County, Ohio, 1972 Shore Erosion in Lake County, Ohio, 1970 Drilling for Seismic Borehole at The Ohio State University, Franklin County, Ohio, 1993 Buena Vista Sandstone at Waller Brothers Stone Company Quarry, Scioto County, Ohio, 1969 Buena Vista Sandstone at Waller Brothers Stone Company Quarry, Scioto County, Ohio, 1968 Buena Vista Sandstone at Waller Brothers Stone Company Quarry, Scioto County, Ohio, 1952 Buena Vista Sandstone at Taylor Stone Company Quarry, Scioto County, Ohio Amherst Quarry in Lorain County, Ohio, 1978 Briar Hill Stone Company in Holmes County, Ohio, 1996 Central Silica Company in Perry County, Ohio, 1988 Faulting at Plum Run Stone Quarry Near Peebles, Adams County, Ohio, 1978 SME Bessener, Inc., Quarry at Mahoning County, Ohio, 1985 Tsunami inundation maps of Seward and northern Resurrection Bay, Alaska Tsunami inundation maps of Fox Islands communities, including Dutch Harbor and Akutan, Alaska Tsunami inundation maps of Seward and northern Resurrection Bay, Alaska Tsunami inundation maps of Fox Islands communities, including Dutch Harbor and Akutan, Alaska