lahar

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lahar

[′lä‚här]
(geology)
A mudflow or landslide of pyroclastic material occurring on the flank of a volcano.
The deposit of mud or land so formed.
References in periodicals archive ?
"Potential lahars can threaten downstream communities along the Malunoy in Patag, Mapaso, Cadac-an, Tinampo and Cogon Rivers in Irosin and the Anog-Rangas River in Juban," it added.
SUKKUR -- A jirga (tribal court) settled a 30-year-old dispute between the Lahar and Katohar communities of Aliabad Buledi village near Jacobabad by imposing heavy fines on culprits of murders and armed attacks.
In a press briefing, Phivolcs said lahar flowed between the Anuling and Miisi channels on Saturday afternoon due to continuous rain in the province of Albay.
"But my concern is that by the time a flowing lahar is detected, it could be as little as 45 minutes from the nearest town.
Three quarters of a cubic mile disappeared in seconds as the Lahar poured down the valleys.
Helens is providing information on the invasion and recovery of herbs and shrubs on pyroclastic flow, lahar and pumice surfaces (e.g., Means et al., 1982; Chapin and Bliss, 1989; Halvorson et al., 1991; del Moral and Bliss, 1993; del Moral and Wood, 1993; Zobel and Antos, 1997; Titus and del Moral, 1998), less information is available on the slower rates of tree invasion and recovery (Halpern and Harmon, 1983; Frenzen and Franklin, 1985; Antos and Zobel, 1986; Adams and Dale, 1987; del Moral, 1998; Larsen and Bliss, 1998).
"If there is ash fall and heavy rain, it can be converted into (a) lahar," said Phivolcs chief Renato Solidumas he warned residents to be on guard against increasing lahar threat due to the heavy rains.
'Phivolcs therefore warns of potential lahars and sediment-laden streamflows on all river channels draining the slopes of Mayon Volcano especially the Buyuan, Miisi, Mabinit, Basud, San Vicente, Buang, Quirangay and Masarawag-Maninila,' the institute warned in their advisory released at 10:30 a.m.
Scientists have discovered the deposits from more than 60 lahars that occurred in the past 10,000 years.
It warned that this could result in lahars flowing into waterways and called on officials to move residents near rivers to higher ground.
Diredger, who has studied the record of mudflows -- or lahars -- at Mount Rainier, says USGS now consideres this volcano the most dangerous of the Cascade range, in part because the mountain has a thick mantle of snow and ice that can melt to from floods and lahars.