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Surface rupture information


Surface rupture caused by normal faulting along the Lost River Fault, during the 1983 Borah Peak earthquake

In seismology, surface rupture (or ground rupture, or ground displacement) is the visible offset of the ground surface when an earthquake rupture along a fault affects the Earth's surface. Surface rupture is opposed by buried rupture, where there is no displacement at ground level. This is a major risk to any structure that is built across a fault zone that may be active, in addition to any risk from ground shaking.[1] Surface rupture entails vertical or horizontal movement, on either side of a ruptured fault. Surface rupture can affect large areas of land.[2]

  1. ^ "What is Surface Rupture". USGS. Retrieved 2018-10-19.
  2. ^ "Surface rupture can be caused by vertical or horizontal displacement". 2018-10-19.

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Surface rupture

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seismology, surface rupture (or ground rupture, or ground displacement) is the visible offset of the ground surface when an earthquake rupture along a fault...

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1939 Erzincan earthquake

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affect Turkey along the North Anatolian Fault between 1939 and 1999. Surface rupturing, with a horizontal displacement of up to 3.7 meters, occurred in a...

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Earthquake rupture

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existing fault. A tectonic earthquake begins by an initial rupture at a point on the fault surface, a process known as nucleation. The scale of the nucleation...

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1911 Kebin earthquake

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Kul, a complex zone of surface rupture was identified by fieldwork immediately following the earthquake. Two main zones of rupture were noted, one complex...

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East Anatolian Fault

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Boncukgöze could be associated with the 1866 Bingöl earthquake (Mw  7.1) surface rupture. This segment has not experienced a major earthquake since 1866. The...

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1940 El Centro earthquake

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last of those events, near the 5:20 mark on the seismograph record. A surface rupture was formed during the earthquake of 40–60 km (25–37 mi), with a maximum...

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1999 Jiji earthquake

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was created by the earthquake as the surface rupture offset the channel of the Dajia River. The total surface rupture was about 100 km in length. Damage...

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1968 Borrego Mountain earthquake

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earthquake struck with a focal depth of 11.1 km (6.9 mi). The zone of surface rupture was assigned a maximum Modified Mercalli intensity (MMI) of VII (Very...

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1973 Ragay Gulf earthquake

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mechanism corresponding to strike-slip. The earthquake produced an onshore surface rupture 30 km along the Guinayangan segment of the Philippine Fault. It also...

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2001 Kunlun earthquake

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high-rise buildings. This earthquake was associated with the longest surface rupture ever recorded on land, ~450 km. The Kunlun fault is one of the major...

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2002 Denali earthquake

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45 km (28 mi) long fault rupture along the Denali fault, but aerial reconnaissance could not locate a surface rupture. This rupture extends to 10 km (6.2 mi)...

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Epicenter

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rupture dimensions less than the depth of the focus so the rupture doesn't break the surface, but in high magnitude, destructive earthquakes, surface...

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2011 Tarlay earthquake

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Clear surface faulting was observed on farmland; at the paddy fields 16 km (9.9 mi) southeast of the epicenter, 2 km (1.2 mi) of surface rupture was mapped...

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1986 Kalamata earthquake

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result of normal faulting along a northwest-dipping fault and produced surface ruptures. Extensive damage was reported in Kalamata and Elaiochori. At least...

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1967 Mudurnu earthquake

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lines running right through them had only a few houses damaged. The surface rupture zone, which was between 1–4 kilometres (0.62–2.49 mi) wide, stretched...

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2013 Bohol earthquake

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kilometres (1.2 mi) in Anonang. In this barangay, surface rupture trends 40 degrees northeast. The surface rupture manifested as prominent fault scarps, which...

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San Jacinto Fault Zone

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instrumental period, but paleoseismology indicates that its last surface rupturing event occurred in the early 19th century, and that comparable earthquakes...

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Foreshock

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R.; Dimitroy, D. (2002). "Active faulting in SW Bulgaria: possible surface rupture of the 1904 Struma earthquakes". Geophysical Journal International...

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1755 Meknes earthquake

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and Meknes. A seismic rupture was also reported but poorly documented. During a field survey of the area in 2017, surface ruptures were identified along...

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Buried rupture earthquake

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produce a visible offset in the ground along the fault (as opposed to a surface rupture earthquake, which does). When the fault in question is a thrust fault...

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1920 Haiyuan earthquake

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(147 mi) of surface rupture along the Haiyuan Fault with a maximum horizontal offset of 6.5 m (21 ft) in the middle section of the rupture zone. The earthquake...

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Okhotsk microplate

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Susanne; Sedov, Boris; Hindle, David (2019-04-25). "The Ulakhan fault surface rupture and the seismicity of the Okhotsk–North America plate boundary". Solid...

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San Andreas Fault

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offsets (such as fences or roads that had been sliced in half) along surface ruptures. When the location of these offsets were plotted on a map, he noted...

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Kutch district

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emerging upward. It can be suggested from the absence of distinct surface rupture both during the 1956 Anjar earthquake and 2001 Bhuj earthquake, that...

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Spleen

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tests are negative. Trauma, such as a road traffic collision, can cause rupture of the spleen, which is a situation requiring immediate medical attention...

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Blind thrust earthquake

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buried rupture earthquake, if a buried rupture earthquake is not specifically about the fault, but signs the earthquake leaves, on the Earth's surface. Blind...

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