Portland Hills Fault using data from USGS and OpenStreetMap. Made using QGIS
The Portland Hills fault zone is the largest shallow fault that cuts beneath Portland, Oregon.[1] It stretches from Oregon City to Scappoose, and has a zone of deformation that extends at least 1,300 feet (400 m).[2]
^Joe Rojas-Burke (February 23, 2011). "Comparing Portland's quake risk to that of devastated Christchurch, New Zealand". The Oregonian.
^Liberty, Lee M; Hemphill-Haley, Mark A; Madin, Ian P (2003). "The Portland Hills Fault: uncovering a hidden fault in Portland, Oregon using high-resolution geophysical methods". Tectonophysics. 368 (1–4): 89–103. Bibcode:2003Tectp.368...89L. doi:10.1016/S0040-1951(03)00152-5.
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wall. It was reactivated as a reverse fault during the late Cretaceous to Palaeogene, and now juxtaposes Portland and Purbeck beds in the hanging wall...
types are normal faults, reverse faults, thrusts or thrust faults and strike-slip faults. Many faults may have acted as both normal faults at one time and...
(200 to 300 m). Located in the Portland Basin, the field consists of monogenetic volcanic cones that appear as hills throughout the area, reaching heights...
until their team commits a fault. Doubles: At the beginning of a doubles game, the side serving first is only allowed one fault before their side is "out"...
by the contrasting hardnesses of the rocks, and by the local patterns of faults and folds. The arch has formed on a concordant coastline where bands of...
is Lewesdon Hill, 279m above sea-level. The landscape of much of the county comprises hills formed by strata of the Chalk Group; these hills include the...
series of half-grabens that were themselves faulted into block mountains. The beds dip to the east, while the faults dip westward. The beds are intruded by...
mother and Armenian father, raised in Parsippany–Troy Hills, New Jersey, Danis attended Parsippany Hills High School and started wrestling there as a freshman...
characteristic rolling hills and valleys. As the Cretaceous chalk layer in southern England is typically tilted, chalk downland hills often have a marked...
members with a temple recommend. The temple stands on top of the Hayward Fault Zone; it underwent major renovations and seismic upgrades, closing from...
The Horse Heaven Hills are a long range of high, rolling hills in Klickitat, Yakima, and Benton counties in Washington. The hills are an anticline ridge...
not feel guilty because it is not her fault. Following this, Deb falls off the canvas, only to return to Tree Hill a few years later upon Nathan going missing...
(interfingering with Corallian) and Portland groups. These rock units include sandstones, greensands, oolitic limestone of the Cotswold Hills, corallian limestone of...
material, and has been described as a provocateur. Ngo was born and raised in Portland, Oregon. His parents fled Vietnam in 1978 as Vietnamese boat people, after...
2016). "Russian jets keep crashing, and it may be an aircraft carrier's fault". The Washington Post. "Bulgaria Air to buy two dry-leased B777". Facebook...
adhesives used contain Portland cement ("cementitious"), or do not have any Portland cement ("cementless"). Adhesives that contain Portland cement harden by...
rocks yield water primarily from bedding planes, fractures, joints, and faults, rather than from intergranular pores. Like the adjacent physiographic provinces...
Park". Port of Portland. Retrieved July 25, 2019. "Portland Shipyard Chronology". The Oregonian. April 15, 2001. p. D02. "Swan Island Faults Cited: Report...
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