A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Catastrophic Debris Flow Transformed from Landslides in Volcanic Terrains: Mobility, Hazard Assessment, and Mitigation Strategies
Communities in lowlands near volcanoes are vulnerable to significant volcanic flow hazards in addition to those associated directly with eruptions. The largest such risk is from debris flows beginning as volcanic landslides, with the potential to travel over 100 kilometers. Stratovolcanic edifices commonly are hydrothermal aquifers composed of unstable, altered rock, forming steep slopes at high altitudes, and the terrain surrounding them is commonly mantled by readily mobilized, weathered airfall and ashflow deposits. We propose that volcano hazard assessments integrate the potential for unanticipated debris flows with, at active volcanoes, the greater but more predictable potential of magmatically triggered flows. The proposal reinforces the already powerful arguments for minimizing populations in potential flow pathways below both active and selected inactive volcanoes. It also addresses the potential for volcano flank collapse to occur with instability early in a magmatic episode, as well as the 'false-alarm problem'-the difficulty in evacuating the potential paths of these large mobile flows.
Catastrophic Debris Flow Transformed from Landslides in Volcanic Terrains: Mobility, Hazard Assessment, and Mitigation Strategies
Communities in lowlands near volcanoes are vulnerable to significant volcanic flow hazards in addition to those associated directly with eruptions. The largest such risk is from debris flows beginning as volcanic landslides, with the potential to travel over 100 kilometers. Stratovolcanic edifices commonly are hydrothermal aquifers composed of unstable, altered rock, forming steep slopes at high altitudes, and the terrain surrounding them is commonly mantled by readily mobilized, weathered airfall and ashflow deposits. We propose that volcano hazard assessments integrate the potential for unanticipated debris flows with, at active volcanoes, the greater but more predictable potential of magmatically triggered flows. The proposal reinforces the already powerful arguments for minimizing populations in potential flow pathways below both active and selected inactive volcanoes. It also addresses the potential for volcano flank collapse to occur with instability early in a magmatic episode, as well as the 'false-alarm problem'-the difficulty in evacuating the potential paths of these large mobile flows.
Catastrophic Debris Flow Transformed from Landslides in Volcanic Terrains: Mobility, Hazard Assessment, and Mitigation Strategies
K. M. Scott (author) / J. M. Macias (author) / J. A. Naranjo (author) / S. Rodriquez (author) / J. P. McGeehin (author)
2003
74 pages
Report
No indication
English
Catastrophic landslides and debris flows in Thailand
| Online Contents | 1993
Catastrophic landslides and debris flows in Thailand
| Online Contents | 1993
| British Library Online Contents | 2015