نتایج جستجو برای: risk earthquake zone
تعداد نتایج: 1075672 فیلتر نتایج به سال:
Earthquakes can produce significant tree mortality, and consequently affect regional carbon dynamics. Unfortunately, detailed studies quantifying the influence of earthquake on forest mortality are currently rare. The committed forest biomass carbon loss associated with the 2008 Wenchuan earthquake in China is assessed by a synthetic approach in this study that integrated field investigation, r...
Abstract Although the Wasatch fault is currently known to have a high-seismic hazard from motion along range-bounding faults, new seismic data reveal faulted and folded 13,000–30,000-yr-old Lake Bonneville strata beneath Salt City (SLC). Coupled with previous excavation trench, borehole, other geologic geophysical observations, we conclude that zone of latest Pleistocene and/or Holocene faultin...
Earthquakes cause deformation in previously stable groundwater environments, resulting changes to the hydrogeological characteristics. The hydrological processes following large-scale earthquakes have been investigated through many physicochemical studies, but understanding of associated geomicrobiological responses remains limited. To complement gathered using hydrogeochemical approaches, stud...
BACKGROUND: Rural areas, usually when compared to other natural events, have the greatest vulnerability of human settlements. The aim of this study was to evaluate natural hazards as earthquakes, landslides, floods and identify high-risk zone in relation to the rural areas of the central township of Azna County, Iran. METHODS: Topographic and geology maps, elevation digital model, and seismic ...
After the Wenchuan earthquake on 12 May 2008, a huge amount of loose deposits was generated mountain surface in zone, and vegetation severely damaged, providing rich source material for debris flow, greatly increasing danger. For many years, researchers have mainly considered recovery slope assessing risk flow post-earthquake. However, field investigations found that large amounts dynamic reser...
Earthquakes are among the most destructive disasters worldwide, and they have had aserious impact on many civilizations cultural heritage sites throughout history. Archaeological sites, in particular, highly vulnerable to effects of earthquakes, which could threaten their integrity. Turkey is a home numerous important archaeological but as being one countries with high earthquake risk, these al...
Large subduction earthquakes on the Cascadia subduction zone pose a potential seismic hazard. Very young oceanic lithosphere (10 million years old) is being subducted beneath North America at a rate of approximately 4 centimeters per year. The Cascadia subduction zone shares many characteristics with subduction zones in southern Chile, southwestern Japan, and Colombia, where comparably young oc...
The land of Iran is a seismic active prone that is located in the mountainous and instable crust due to special geological position. Continuous tectonic stress from the Arabic and Indian plates has exposed seismic active faults. The huge and destructive earthquakes that occur every few years in this area reflect the tectonic conditions of the plateau of Iran. Since, the path of faults and fract...
[1] Coseismic deformation of the ground can be measured from aerial views taken before and after an earthquake. We chose the area of the Kickapoo-Landers step over along the 1992 Landers earthquake zone, using air photos (scale 1:40,000) scanned at 0.4 m resolution. Two photos acquired after the earthquake are used to assess the accuracy and to evaluate various sources of noise. Optical distort...
The land of Iran is a seismic active prone that is located in the mountainous and instable crust due to special geological position. Continuous tectonic stress from the Arabic and Indian plates has exposed seismic active faults. The huge and destructive earthquakes that occur every few years in this area reflect the tectonic conditions of the plateau of Iran. Since, the path of faults and fract...
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