Volcano Hazards Program Office

Publications

Filter Total Items: 2,114
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Year Published: 1970

College, Alaska, observatory

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Coffman, Jerry L.

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Year Published: 1970

Earthquake history of Alaska

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Coffman, Jerry L.

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Year Published: 1970

A linear programming and least squares computer method for solving petrologic mixing problems

Problems of petrologic mixing have been solved using a two-stage computer-based calculation. First, linear programming is used to obtain an approximate solution and to identify non-negative solution values. Then a conventional least squares calculation is performed using the analyses represented by non-negative solution values as input to yield an...

Wright, Thomas L.; Doherty, Patrick C.

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Year Published: 1970

Caldera collapse in the Galápagos Islands, 1968

The summit caldera of Isla Fernandina, a large, uninhabited basaltic shield volcano, was further enlarged by 1 to 2 km3 in June 1968. A small quake and large vapor cloud on 11 June were followed 4 hours later by a remarkable volcanic ash cloud and, after another hour, by a major explosion recorded at infrasonic stations throughout the hemisphere....

Simkin, T.; Howard, K.A.
Caldera collapse in the Galápagos Islands, 1968; 1970; Article; Journal; Science; Simkin, T.; Howard, K. A.

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Year Published: 1969

Analysis of a 24-Year photographic record of Nisqually glacier, Mount Rainier National Park, Washington

A systematic coverage of Nisqually Glacier by photographs taken from a network of stations on the ground was begun in 1942 to explore the value and limitations of such photographs as an aid in glacier study. Principles developed may be of value elsewhere, especially for the program 'Measurement of Glacier Variations on a World-Wide Basis' of the...

Veatch, Fred M.
Analysis of a 24-Year photographic record of Nisqually glacier, Mount Rainier National Park, Washington; 1969; PP; 631; Veatch, Fred M.

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Year Published: 1969

Kilauea Volcano: The 1967-68 summit eruption

On 5 November 1967 Kilauea volcano began erupting lava from vents on the floor of its summit pit crater. Halemaumau, 170 meters deep. This eruption ended nearly 2 years of the quiescence that followed a short lived eruption on the east  rift zone of Kilauea in December 1965 (1). The 1967-68 eruption was the first activity in Halemaumau since...

Kinoshita, Willie Tomoni; Koyanagi, R.Y.; Wright, Thomas L.; Fiske, Richard S.

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Year Published: 1969

Kilauea volcano: The 1967-68 summit eruption

No abstract available.

Kinoshita, Willie Tomoni; Koyanagi, Robert Y; Wright, Thomas L.; Fiske, Richard S.

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Year Published: 1969

Nuées Ardentes of the 1968 Eruption of Mayon Volcano, Philippines

Mayon Volcano, southeastern Luzon, began a series of explosive eruptions at 0900 April 21, 1968, and by May 15 more than 100 explosions had occurred, at least 6 people had been killed, and roughly 100 square km had been covered by more than 5 cm of airfall ash, blocky ash flows, and a lava flow. All material crupted was porphyritic augite-...

Moore, James G.; Melson, W.G.

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Year Published: 1969

Nuees Ardentes of the 1968 eruption of Mayon Volcano, Philippines

Mayon Volcano, southeastern Luzon, began a series of explosive eruptions at 0900 April 21, 1968, and by May 15 more than 100 explosions had occurred, at least 6 people had been killed, and roughly 100 square km had been covered by more than 5 cm of airfall ash, blocky ash flows, and a lava flow. All material crupted was porphyritic augite-...

Moore, James G.; Melson, W.G.