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  2. Lahar - Wikipedia

    en.wikipedia.org/wiki/Lahar

    A lahar travels down a river valley in Guatemala near the Santa Maria volcano, 1989. A lahar (/ ˈ l ɑː h ɑːr /, from Javanese: ꦮ꧀ꦭꦲꦂ) is a violent type of mudflow or debris flow composed of a slurry of pyroclastic material, rocky debris and water.

  3. 1979 eruption of Sinila crater - Wikipedia

    en.wikipedia.org/wiki/1979_eruption_of_Sinila_crater

    The eruption started in the early morning, with three earthquakes before the initial explosion at 5 in the morning at Sinila crater. [10] The eruption involved explosions, the expulsion of rocks and mud, intense steam and gas release, and a hot lahar that flowed over roads and farmland along a 3.5 km stretch. [10]

  4. Debris flow - Wikipedia

    en.wikipedia.org/wiki/Debris_flow

    A lahar is a debris flow related in some way to volcanic activity, either directly as a result of an eruption, or indirectly by the collapse of loose material on the flanks of a volcano. A variety of phenomena may trigger a lahar, including melting of glacial ice, sector collapse , intense rainfall on loose pyroclastic material, or the outburst ...

  5. Types of volcanic eruptions - Wikipedia

    en.wikipedia.org/wiki/Types_of_volcanic_eruptions

    Lahar flows from the 1985 eruption of Nevado del Ruiz, which totally destroyed Armero in Colombia The most dangerous eruptive feature are the pyroclastic flows generated by material collapse, which move down the side of the mountain at extreme speeds [ 40 ] of up to 700 km (435 mi) per hour and with the ability to extend the reach of the ...

  6. Stratovolcano - Wikipedia

    en.wikipedia.org/wiki/Stratovolcano

    Lahars are typically about 60% sediment and 40% water. [40] Depending on the abundance of volcanic debris the lahar can be fluid or thick like concrete. [ 41 ] Lahars have the strength and speed to flatten structures and cause great bodily harm, gaining speeds up to dozens of kilometers per hour. [ 40 ]

  7. Mudflow - Wikipedia

    en.wikipedia.org/wiki/Mudflow

    Other types of mudflows include lahars (involving fine-grained pyroclastic deposits on the flanks of volcanoes) and jökulhlaups (outbursts from under glaciers or icecaps). [6] A statutory definition of "flood-related mudslide" appears in the United States' National Flood Insurance Act of 1968, as amended, codified at 42 USC Sections 4001 and ...

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  9. Category:Lahars - Wikipedia

    en.wikipedia.org/wiki/Category:Lahars

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