Publications
Filter Total Items: 2687
Preparing for the next eruption in the Cascades
No abstract available.
Authors
J.W. Ewert, B.M. Myers, S.R. Brantley
Volcanic activity and ground deformation hazard analysis for the Hawaii Geothermal Project environmental impact statement
No abstract available
Authors
James P. Kauahikaua, Richard B. Moore, Paul T. Delaney
High stand and catastrophic draining of intracaldera Surprise Lake, Aniakchak volcano, Alaska: A section in Geologic studies in Alaska by the U.S. Geological Survey, 1993
Wave-cut terraces and multiple exposures of lacustrine sediment indicate a former, more extensive stand of intracaldera Surprise Lake in the crater of Aniakchak volcano. The lake once covered nearly half of the caldera floor and had an estimated volume of about 3.7x109 m3. A terrace that marks the high stand of the lake is traceable along the north caldera wall to a break in slope near the top of
Authors
Robert G. McGimsey, Christopher F. Waythomas, Christina A. Neal
Hydrologic hazards in the lower Drift River basin associated with the 1989-90 eruptions of Redoubt Volcano, Alaska
No abstract available.
Authors
J.M. Dorava, D. F. Meyer
Giant Hawaiian underwater landslides
No abstract available
Authors
James G. Moore, William R. Normark, Robin T. Holcomb
Video of the August 18, 1992, eruption of Crater Peak vent on Spurr Volcano, Alaska
No abstract available.
Authors
Robert G. McGimsey, Joseph M. Dorava
Giant Hawaiian landslides
Sixty-eight landslides more than 20 km long are present along a 2200 km segment of the Hawaiian Ridge from near Midway to Hawaii. Some of the landslides exceed 200 km in length and 5000 km3 in volume, ranking them among the largest on Earth. Most of these giant landslides were discovered during a mapping program of the U.S. Hawaiian Exclusive Economic zone from 1986 to 1991 utilizing the GLORIA si
Authors
J. G. Moore, W. R. Normark, R. T. Holcomb
The 1989-1990 eruptions of Redoubt Volcano: an introduction
Redoubt Volcano, located on the west side of Cook Inlet in south-central Alaska, erupted explosively on over 20 separate occasions between December 14, 1989 and April 21, 1990. Fourteen lava domes were emplaced in the summit area, thirteen of which were subsequently destroyed. The eruption caused economic losses estimated at over $160,000,000 making this the second most costly eruption in U.S. his
Authors
T. P. Miller, B. A. Chouet
An experiment to detect and locate lightning associated with eruptions of Redoubt Volcano
A commercially-available lightning-detection system was temporarily deployed near Cook Inlet, Alaska in an attempt to remotely monitor volcanogenic lightning associated with eruptions of Redoubt Volcano. The system became operational on February 14, 1990; lightning was detected in 11 and located in 9 of the 13 subsequent eruptions. The lightning was generated by ash clouds rising from pyroclastic
Authors
R. P. Hoblitt
Development of lava tubes in the light of observations at Mauna Ulu, Kilauea Volcano, Hawaii
During the 1969-1974 Mauna Ulu eruption on Kilauea's upper east rift zone, lava tubes were observed to develop by four principal processes: (1) flat, rooted crusts grew across streams within confined channels; (2) overflows and spatter accreted to levees to build arched roofs across streams; (3) plates of solidified crust floating downstream coalesced to form a roof; and (4) pahoehoe lobes progres
Authors
D. W. Peterson, R. T. Holcomb, R. I. Tilling, R. L. Christiansen
Magmatic vapor source for sulfur dioxide released during volcanic eruptions: Evidence from Mount Pinatubo
Sulfur dioxide (SO2) released by the explosive eruption of Mount Pinatubo on 15 June 1991 had an impact on climate and stratospheric ozone. The total mass of SO2 released was much greater than the amount dissolved in the magma before the eruption, and thus an additional source for the excess SO2 is required. Infrared spectroscopic analyses of dissolved water and carbon dioxide in glass inclusions
Authors
P.J. Wallace, T.M. Gerlach
Unusual ice diamicts emplaced during the December 15, 1989 eruption of Redoubt volcano, Alaska
Ice diamict comprising clasts of glacier ice and subordinate rock debris in a matrix of ice (snow) grains, coarse ash, and frozen pore water was deposited during the eruption of Redoubt Volcano on December 15, 1989. Rounded clasts of glacier ice and snowpack are as large as 2.5 m, clasts of Redoubt andesite and basement crystalline rocks reach 1 m, and tabular clasts of entrained snowpack are as l
Authors
R. B. Waitt, C. A. Gardner, T. C. Pierson, J. J. Major, C. A. Neal