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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. The material flows down from a volcano , typically along a river valley .
Detailed map of Mount Rainier's summit and northeast slope showing upper perimeter of Osceola collapse amphitheater (hachured line) The Osceola Mudflow, also known as the Osceola Lahar, was a debris flow and lahar in the U.S. state of Washington that descended from the summit and northeast slope of Mount Rainier, a volcano in the Cascade Range during a period of eruptions about 5,600 years ago.
Lahar was a Mesopotamian deity associated with flocks of animals, especially sheep. Lahar's gender is a topic of debate in scholarship, though it is agreed the name refers to a female deity in a god list from the Middle Babylonian period and to a male one in the myth Theogony of Dunnu .
The 1963 eruption of Irazú Volcano in the Cordillera Volcánica Central was one of the most powerful eruptions in Costa Rica, especially for his destructive lahar.Signs of reactivation began to occur in 1961 in the form of microseisms; previously, several specialists warned that the Irazú Volcano could explode at any time.
The lahar-warning system at the station at 311 W. Pioneer went off about 10 a.m. The Puyallup Police Department posted on Twitter about 10:30 a.m. that the siren was a false alarm and that it was ...
Hours of heavy monsoon rains caused flash flooding at around 22:30 WIB (15:30 UTC) on 11 May, exacerbated by a lahar from Mount Marapi. [1] [2] The rains also caused a river to overflow and flood villages in four districts. [3] The lahar swept down Mount Marapi, carrying a wet mixture of ash and rocks. It buried homes and swept some residents ...
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 ...
The Electron Lahar, also known as the Electron Mudflow, was a lahar in the U.S. state of Washington that descended from the summit and sunset amphitheater on Mount Rainier about 500 years ago. [1] It was named after the unincorporated community of Electron. The extent of the Electron mudflow was about 34 miles (55 km) from Mount Rainier. [2]