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Encyclopedia > Mudflow

A mudflow or mudslide is the most rapid (up to 80 km/h) and fluid type of downhill mass wasting. Similar terms are debris flow (e.g. in high mountains), mudslide (not very liquid)lahars and mud stream (e.g. from volcanoes; see also lahar). Mass wasting, also known as mass movement or slope movement, is the geomorphic process by which soil, regolith, and rock move downslope under the force of gravity. ... Lahar from a March 1982 eruption of Mount St. ...

Mailboxes caught in a mudflow.
Mailboxes caught in a mudflow.

However, these terms show a broad variety Image File history File links Mudflow_mailboxes. ... Image File history File links Mudflow_mailboxes. ...

Water content is a ratio used in hydrogeology and soil mechanics to indicate the amount of water a porous medium contains. ... Loess field in Germany Surface-water-gley developed in glacial till, Northern Ireland Technically, soil forms the pedosphere: the interface between the lithosphere (rocky part of the planet) and the biosphere, atmosphere, and hydrosphere. ... This article or section cites very few or no references or sources. ... Silt is soil or rock derived granular material of a specific grain size. ... Debris (French, pronounced (IPA) dibri) is a word used to describe the remains of something that has been otherwise destroyed. ... Ash plume from Mt Cleveland, a stratovolcano Diamond Head, a well-known backdrop to Waikiki in Hawaii, is an ash cone that solidified into tuff Volcanic ash consists of very fine rock and mineral particles less than 2 mm in diameter that are ejected from a volcanic vent. ... It has been suggested that this article or section be merged with Tree (disambiguation). ... This article or section is in need of attention from an expert on the subject. ...

Triggering of mud flows

The Mameyes mudslide disaster was caused by heavy rainfall from Tropical Storm Isabelin 1985. The mudslide destroyed more than 100 homes and claimed an estimated 300 lives.
The Mameyes mudslide disaster was caused by heavy rainfall from Tropical Storm Isabelin 1985. The mudslide destroyed more than 100 homes and claimed an estimated 300 lives.

Heavy rainfall, snowmelt, or high levels of ground water flowing through cracked bedrock may trigger a movement of soil or sediments. Floods, debris- and mud flows may also occur when strong rains on hill or mountain slopes cause extensive erosion and/or what is known as "channel scour". The 2006 Sidoarjo mud flow may have been caused by rogue drilling. Image File history File links Mameyes. ... Image File history File links Mameyes. ... Puerto Rico was hit by the Mameyes disaster on October 7, 1985. ... Snow is a type of precipitation in the form of crystalline water ice, consisting of a multitude of snowflakes that fall from clouds. ... Groundwater is any water found below the land surface. ... Flooding in Amphoe Sena, Ayutthaya Province, Thailand. ... The panoramic view from Connors Hill, near Swifts Creek, Victoria A hill is a landform that extends above the surrounding terrain, in a limited area. ... For morphological image processing operations, see Erosion (morphology). ... Homes buried by the mud flow The Sidoarjo mud flow, also informally named Lusi, from Lumpur Sidoarjo, is an ongoing eruption of gas and mud from the earth in the subdistrict of Porong, Sidoarjo in East Java, Indonesia. ...


Some broad mudflows are rather pretty and therefore slow (some meters/sec). Others begin very quick and continue like an avalanche. If "large enough" they can devastate villages and countrysides. They are composed of at least 50% silt and clay-sized materials and up to 30% water. Mudflows are common even in the hills around Los Angeles where they have destroyed many homes built on hillsides without sufficient support[citation needed]. Beauty also refers to the bottom quark, a flavor of quark in particle physics. ... A Himalayan avalanche near Mount Everest. ... The panoramic view from Connors Hill, near Swifts Creek, Victoria A hill is a landform that extends above the surrounding terrain, in a limited area. ... Flag Seal Nickname: City of Angels Location Location within Los Angeles County in the state of California Coordinates , Government State County California Los Angeles County Mayor Antonio Villaraigosa (D) Geographical characteristics Area     City 1,290. ...


The point where a muddy material begins to flow, depends on its grain and the water content. Fine grainy material or soil has a smaller friction angle than a coarse sediment or a debris flow, but falling rock pieces can trigger a material flow, too. The word grain has several meanings, most being descriptive of a small piece or particle. ... This article or section cites very few or no references or sources. ... Debris (French, pronounced (IPA) dibri) is a word used to describe the remains of something that has been otherwise destroyed. ...


See also

Moisture content (MC) is a term used in a wide range of scientific and technical areas to express the quantity of water that a material contains. ... Solifluction, also known as soil fluction, is a type of mass wasting where waterlogged sediment slowly moves downslope over impermeable material. ... Water content or moisture content is the quantity of water contained in a material, such as soil (called soil moisture), rock, ceramics, or wood. ... Look up torrent in Wiktionary, the free dictionary. ... Look up Slope in Wiktionary, the free dictionary. ... Fail and Phail redirect here. ... Gully in El Paso County, Colorado, USA. A gully is a landform created by running water eroding sharply into a hillside. ... An alluvial plain is a relatively flat and gently sloping landform found at the base of a range of hills. ... Look up lava, Aa, pahoehoe in Wiktionary, the free dictionary. ... In computer programming jargon, lava flow is a problem in which computer code, usually written under less than optimal conditions, is put into production and then built on when still in a developmental state. ... Lahar from a March 1982 eruption of Mount St. ... Hubbard Glacier, Alaska squeezes towards Gibert Point on May 20, 2002. ...

External links

  • How Mudslide works
  • Directed Technologies Drilling for mudslide prevention

  Results from FactBites:
 
Scott Polar Research Institute » Mudflow hazard and glaciation decrease in Central Caucasus (1905 words)
The mudflows came from the Western Kayaarty glacier through the Kayaarty-Su and Gerkhozhan-Su river valleys, through a protective dam (destroyed by a mudflow a year before) in the lower Gerkhozhan-Su, and blocked the course of the Baksan River in the main valley.
The most important mudflow protection measures are the establishment of mudflow monitoring posts in at least two key places, an early warning system, the reinstatement of the protective flume in the lower Gerhozhan-Su, a ban on construction in and resettlement from the danger zone in Tyrnyauz.
Ledniki i seli Prielbrus'ia (Evolutsia oledeneniya i selevoi aktivnosti): [Glaciers and mudflows in the Elbrus region (evolution of glaciation and mudflow activity)].
The Problem of Mudflow Events and Mudflow Protection in Almaty Region (2967 words)
The mudflows of these types are formed by melted glacier water which overfills the glacial moraine lakes and breaks through mem.Almost all the glaciers have their own moraine lakes, m Zailiiskiy Ala-Tau insummer there are more than 130 moraine lakes.
The biggest glacial mudflows in the basin of the river Malaya Almatynka were in 1951, 1956 and in 1973.
The seismic mudflows of the years 1841 and 1887 were formed as a consequence of big landslides and breakthrough of temporary blocked moraine lakes which were made earlier during earthquakes and heavy showers in the mountains of the Zailiiskiy Ala-Tau.
  More results at FactBites »

 
 

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