Talk:List of landslides

Criteria for inclusion?

Other than has reliable sources, what are the criteria for including any particular landslide (or group of landslides) on this list? Obviously, any landslide which is in the range of tens of millions of cubic meters, or one which kills thousands of people, is probably worth including, but where are the limits? What would make a biger or more deadly landslide worth including?

The 21st century part of the list is already nearly as big as the 20th century, and that will remain true even once I'm done transferring landslides from list of historic landslides, primarily because of better (and more net-accessible) news coverage. Having some sort of criteria will keep the 21st century section from overwhelming the 20th century section.

Also, geologically speaking, what qualifies? Classic rotational and translational slides, and debris flows should count, ob|(talk)]] 18:36, 25 November 1054 (UTC)

In my personal (unprofessional but educated) opinion, landslides can be of any sufficient size. Rockslide also count. Rockfalls probably don't, as it's just some rocks falling without a fundamental slip of the terrain. Avalanches are related, but they're made of snow which is transient by its nature. (However, on moons in the outer Solar System, permanent non-flowing ice that is considered part of the fundamental terrain could be considered a landslide if the terrain slips.) Pyroclastic flows, like avalanches, are made of transient material that require great heating of hot gases and material. However, the natural landslide that triggered the 1980 eruption of Mount Saint Helen would qualify, as it unplugged the vent rather than being erupted from it—the landslide itself was also largely cooled rock that was being pushed by newer hotter rock from underneath. I'm uncertain whether to say all mudslides (including lahars) are landslides, though some of them probably are, since they already have many features in common (both landslides and mudslides can be triggered by oversaturation of water in the ground). - Gilgamesh (talk) 19:41, 25 November 2010 (UTC)

Lots of good questions there. For earthquakes I came up with a set of criteria for notability but there you have parameters such as magnitude and intensity, and several reliable global or local catalogues to check them out. For landslides it's more difficult, although I agree that more than one death, mentions in the media (other than just at the time) and coverage in scientific papers would all establish notability. That will still leave quite a lot of landslides to deal with. For the older ones, it you can find them in reliable sources, then that's almost definitely OK. For ones that are very recent, we don't have the benefit of hindsight to help us decide on the notability. This list will I think naturally evolve into separate lists referring to pre-historic, pre-20th century, 20th century and 21st century (which might eventually be split into individual decades - I'm fairly sure that will happen to the list of 21st-century earthquakes).

As to types of 'landslides' in the broad sense, I think that avalanches should be separate unless they involved rock as they move downslope, pyroclastic flows definitely not I think, but lahars just as clearly yes (once formed they develop just like mudslides), earthflows, flowslides, mudslides, debris flows, rockslides all OK. Rockfalls, there I think that if a single block falls on somebody, probably not but some rockfalls have a perceptible runout, so may qualify. As to individual events versus groups of events, they're both OK, groups of landslides are generally triggered by the same event, earthquake or tropical storm rainfall, so can be considered together. Mikenorton (talk) 20:29, 25 November 2010 (UTC)

There's a paper by the USGS Significant Landslide Events in the United States, which lists quite a few landslides in the U.S. There are probably similar catalogs for most countries which have agencies equivalent to the USGS, and the USGS may have some of those catalogs in translation. Argyriou (talk) 00:56, 30 November 2010 (UTC)

From list of historic landslides

Unsourced landslides from list of historic landslides, to be added to list as references are found:

20th century

• Khinjan Pass landslide in Baghian, Afghanistan on July 1971.
• Tosayamada landslide in Shikoku, Japan on July 1972.
• Moyomarca hill mudslide in Huancayo, Peru on April 1974.
• Quebradablanca avalanche with swept 33 vehicle in Boyacá, Colombia on June 1974.
• Zona de Armenta and Omoa landslide by Hurricane Fifi in Cortes Department, Honduras, on September 1974.
• Pahire Phedi landslide in Nepal on June 1976.
• Baliem Valley landslide by 1976 Papua earthquake in Irian Jaya, Indonesia on July 1976.
• Siheung and Anyang landslide in Gyeonggi, South Korea on July 1977.
• Nilgiri Hills landslide in Tamil Nadu, India on November 1978
• Ayvazhaci avalanche in Kayseri Province, Turkey, on March 1980.
• Mount Semeru landslide by heavy rain in East Java, Indonesia on August 1981
• Nakajima landslide in Nagasaki, Kyūshū, Japan on July 1982
• Ataco mudslide in El Salvador on September 1982
• Dongxing landslide in Gansu, China, on March 1983
• Chunchi mudslide in Chimborazo, Ecuador, on April 1983
• Almora landslide in Uttar Pradesh, India on July 1983
• Dongchuan landslide in Yunnan, China on May 1984
• Buyeo and Seocheon landslide by Typhoon Thelma in Chungchongnam-do, South Korea, on July 1987.
• El Limon mudslide in Aragua, Venezuela on September 1987.
• Villatina mudslide in Colombia on September 1987.
• Wuxi County landslide in Sichuan, China on September 1987.
• Macka landslide in Trabzon, Turkey on June 1988
• Darwang and Niskot landslide in Myagdi, Nepal on September 1988.
• Sharora landslide by 1989 Tajikistan earthquale in Hisor District, Tajikistan on January 1989.
• Tsablanca landslide in Georgia on April 1989.
• Bhaji landslide in Maharashtra, India on July 1989
• Calama mudslide in Atacama, Chile on June 1991.
• Zhaotong landslide by torrential rain, in Yunnan, China on September 1991
• Ninghai mudslide in Zhejiang, China on September 1992.
• Llipi Limitada landslide in Larecaja Province, Bolivia, on December 1992.
• Nambija Bajo mudslide in Zamora, Ecuador on May 1993.
• Kagoshima mudslide in Kyūshū, Japan on August 1993.
• Yuangyang mudslide in Yunnan, China on July 1994
• Khooni Nallah and Banihal tunnel avalanche in Jammu and Kashimir region, India on January 1995.
• Wakhan landslide in Badakhshan, Afghanistan on April 1995.
• Cheorwon landslide in Gangwon, South Korea on July 1996.
• Tamburco mudslide by torrential rain in Apurímac Region, Peru on February 1997.
• Pithoragarh mudslide in Uttar Pradesh, India on August 1998
• Lishui landslide in Zhejiang, China on September 1999

• Payatas, Manila garbage slide on 11 July 2000.
• Mianning landslide by torrential rain in Liangshan, Sichuan, China on July 2000
• 2000 Mumbai landslide

21st Century

• I suggest including the january-april 2010, rio de janeiro mudslides and floods, which toghether killed about300 people. — Preceding unsigned comment added by 190.105.26.214 (talk) 18:15, 15 January 2012 (UTC)

• Danba mudslide in Sichuan, China on July 2003
• Zuojiaying landslide in Nayong, Guizhou, China on December 2004
• Jaigaon mudslide in Maharashtra, India on July 2005
• Liangshan mudslide in Sichuan, China on May 2007
• Xiangfen County mudslide with unlicensed Tashan coal mine collapse in Shanxi, China on September 2008.
• Wulong mudslide in Chongqing, China on July 2009
• Hofu mudslide in Yamaguchi, Japan on July 2009.
• Nile Valley Landslide, no injuries but destroyed some houses, obliterated a quarter mile of Washington State Route 410 and redirecting the Naches River 10 miles west of Naches, Washington on 11 October 2009.
• Bayambang and Alcalá landslide in Benguet, Philippines on October 2009.
• San Vicente and San Salvador mudslide by Hurricane Ida in El Salvador on November 2009.
• Angra dos Reis mudslide in Ilha Grande Island, Rio State, Brazil on January 2010.
• Morro Bumba mudslide in Rio State, Brazil on April 2010.
• Ruptured irrigation system caused over 11 deaths in Italy on April 12, 2010

sourced:

• Lincang mudslide in Yunnan, China killed 82 people on November 2008
• Massive Landslide caused 38 families about 107 people buried in Anshun City of Guizhou Province, China on June 28, 2010.
• Landslide killed 92 people in Puladi, Yunnan on August 17, 2010.

188.168.17.214 (talk) 06:20, 4 October 2013 (UTC): What about this? http://en.wikipedia.org/wiki/Kolka-Karmadon_rock_ice_slide

Argyriou (talk) 15:59, 1 December 2010 (UTC)

Sources

Sources for more landslides:

• Where Do Landslides Occur? - B.C. Gov't site.
• Catastrophic landslides: effects, occurrence, and mechanisms By Stephen G. Evans, Jerome V. DeGraff
• Estrategia Internacional para la Reducción de Desastres

Argyriou (talk) 07:06, 2 December 2010 (UTC)

March 12 2011 trim

I will remove some less notable or unsourced events from the list and put them here. Feelfree to discuss. I have rough criteria in mind, but typing them would be too long. Circeus 8:27, March 12, 2011 (UTC) The years are missing from the copied elements.

Other historic landslide

• Amalfi landslide in Salerno, Italy on March 1924.
• Gros Ventre landslide in Wyoming, United States, on June 23, 1925
• Guwahati Landslide in Assam, India on September 1948.
• Khait landslide, Khait, Tajikistan, Soviet Union, on July 10, 1949
• Santa Elena landslide in Antioquia Department, Colombia on July 1954.
• Molina di Vietri and Ponte Romano landslide in Salerno, Italy on October 1954.
• Ranrahirca landslide in Peru on January 1962.
• Santa Teresa landslide in Rio State, Brazil on February 1967.
• Caraguatatuba landslide in State of São Paulo, Brazil on March 1967.
• Amherst and Nelson landslide by Hurricane Camille in Virginia on August 1969.
• Chungar landslide by avalanche in Peru, on March 1971.

— Preceding unsigned comment added by 219.23.5.48 (talk) 14:01, 12 March 2011 (UTC)

glaring omission

wanted to let you know that a very important event that is missing is the 1959 Hebgen Lake landslide that created Quake Lake, in Montana; there is ample documentation — Preceding unsigned comment added by 98.94.82.170 (talk) 08:30, 31 March 2014 (UTC)

See: 1959 Hebgen Lake earthquake. — Preceding unsigned comment added by 187.189.207.135 (talk) 22:26, 18 July 2019 (UTC)

volumes of material need revision

The volume estimates are presented in abbreviated units of Mm³, or km³. But I think these are, in many instances erroneous. For example, the Bingham Canyon landslide has published estimates of ~65 million cubic meters of material. (*See below) That is, 65 x 10^6 cubic meters. This is equal to 0.065 cubic km, which would normally be notated as 0.065 km³, or 0.000000065 Mm³. I checked the sizes of various other slides on Google Earth and found similar discrepancies. I am a geology professor, but not a wiki editor, so I hope someone who edits regularly will attend to this issue.

• http://www.geosociety.org/gsatoday/archive/24/1/article/i1052-5173-24-1-4.htm

71.235.73.140 (talk) 05:23, 4 November 2014 (UTC)

The non-standard unit Mm³ is regularly used in the literature to denote million cubic metres - see for instance for the Khait landslides [1]. This is explained in the lead section. Mikenorton (talk) 08:10, 4 November 2014 (UTC)

@Mikenorton:I've found that Mm³ is used in this article and others to mean million m³, but as the article says, it is "non-standard". Based on SI units and prefixes, Mm³ is cubic megameters, that is cubes 1000 km on a side. That is the same way that a km² is a square kilometer rather than 1000 square meters. Would there be any objection to changing to MCM (million cubic meters), which while it is not a standard SI unit, is not wrong. Thanks.  SchreiberBike | ⌨  02:11, 28 November 2015 (UTC)

No objection to that, at least it shouldn't confuse anybody (apparently that should really be a cubic hectometre, so to some extent still non-standard) - as with all units, people aim for something that gives an easy to understand range, with most major landslides falling into the 1-1000 MCM range. Mikenorton (talk) 13:18, 28 November 2015 (UTC)

Done. Thanks for the feedback.  SchreiberBike | ⌨  02:49, 29 November 2015 (UTC)