Snow and ice perturbation during historical volcanic eruptions and the formation of lahars and floods

@article{Major1989SnowAI,
  title={Snow and ice perturbation during historical volcanic eruptions and the formation of lahars and floods},
  author={J. J. Major and Christopher G. Newhall},
  journal={Bulletin of Volcanology},
  year={1989},
  volume={52},
  pages={1-27}
}
Historical eruptions have produced lahars and floods by perturbing snow and ice at more than 40 volcanoes worldwide. Most of these volcanoes are located at latitudes higher than 35°; those at lower latitudes reach altitudes generally above 4000 m. Volcanic events can perturb mantles of snow and ice in at least five ways: (1) scouring and melting by flowing pyroclastic debris or blasts of hot gases and pyroclastic debris, (2) surficial melting by lava flows, (3) basal melting of glacial ice or… Expand
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  • H. Tuffen
  • Geology, Medicine
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2010
TLDR
A critical overview of the evidence that current melting of ice will increase the frequency or size of hazardous volcanic eruptions and the potential for positive feedbacks between melting ofice and enhanced volcanism is provided. Expand
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References

SHOWING 1-10 OF 59 REFERENCES
Generation of pyroclastic flows and surges by hot-rock avalanches from the dome of Mount St. Helens volcano, USA
Several hot-rock avalanches have occurred during the growth of the composite dome of Mount St. Helens, Washington between 1980 and 1987. One of these occurred on 9 May 1986 and produced a fan-shapedExpand
Initiation and flow behavior of the 1980 Pine Creek and Muddy River lahars, Mount St. Helens, Washington
Two large, high-velocity lahars (volcanic debris flows) were triggered by a pyroclastic surge during the first few minutes of the May 18, 1980, eruption of Mount St. Helens. The initial surge cloudExpand
Swift snowmelt and floods (lahars) caused by great pyroclastic surge at Mount St Helens volcano, Washington, 18 May 1980
The initial explosions at Mount St. Helens, Washington, on the moring of 18 May 1980 developed into a huge pyroclastic surge that generated catastrophic floods off the east and west flanks of theExpand
Interrelations among pyroclastic surge, pyroclastic flow, and lahars in Smith Creek valley during first minutes of 18 May 1980 eruption of Mount St. Helens, USA
A devastating pyroclastic surge and resultant lahars at Mount St. Helens on 18 May 1980 produced several catastrophic flowages into tributaries on the northeast volcano flank. The tributariesExpand
Phreatic eruptions of Ruapehu: April 1975
Abstract A major phreatic eruption occurred in Ruapehu Crater Lake, North Island, New Zealand, at 1975 April 24d, 03h 59m, N.Z.S.T. Only nine minutes of volcanic-seismic activity preceded theExpand
Downstream dilution of a lahar : transition from debris flow to hyperconcentrated streamflow.
Nearly instantaneous melting of snow and ice by the March 19, 1982, eruption of Mount St. Helens released a 4 × 106 m3 flood of water from the crater that was converted to a lahar (volcanic debrisExpand
The May 1915 eruptions of Lassen Peak, II: May 22 volcanic blast effects, sedimentology and stratigraphy of deposits, and characteristics of the blast cloud
Abstract The May 22, 1915 eruptions of Lassen Peak involved a volcanic blast and the emplacement of three geographically and temporally distinct lahar deposits. The volcanic blast occurred when aExpand
A detailed chronology of the most recent major eruptive period at Mount Hood, Oregon
The most recent eruptive period of Mount Hood volcano, the Old Maid eruptive period, was characterized by volcano-hydrologic events (hydrologic events initiated by volcanic activity) which resultedExpand
Eruption-Triggered Avalanche, Flood, and Lahar at Mount St. Helens—Effects of Winter Snowpack
An explosive eruption of Mount St. Helens on 19 March 1982 had substantial impact beyond the vent because hot eruption products interacted with a thick snowpack. A blast of hot pumice, dome rocks,Expand
Mudflows resulting from the May 18, 1980, eruption of Mount St. Helens, Washington
On May 18, 1980, Mount St. Helens, in southwestern Washington, erupted violently, setting off a chain of devastating hydrologic event. During the eruption, a massive debris avalanche moving down theExpand
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2
3
4
5
...