Natural DisastersNatural Disasters

By: Patrick L. Abbott

Chapter 7Chapter 7

Volcanism and Plate Tectonics

OverviewOverview

Plate-Tectonic Setting of VolcanoesVolcanism at Spreading CentersVolcanism at Subduction ZonesKiller Events and Processes at

Subduction-Zone VolcanoesHot Spots

Overview (cont.)Overview (cont.)

Volcanism at Continental Hot SpotsGigantic Intraplate Volcanic

EruptionsVolcano Monitoring and Warning

Plate-Tectonic Setting of Plate-Tectonic Setting of VolcanoesVolcanoes

LocationsActivity

Volcanism at Spreading Volcanism at Spreading CentersCenters

Iceland Fissure Eruption of 1783 Jokulhlaup of 1996

Killer Lakes of Cameroon, Africa Failed rifts

Volcanism at Subduction Volcanism at Subduction Zones Zones

Cascade Range, Pacific Northwest Mount St. Helens, Washington, 1980 Lassen Peak, California, 1914-17 Mount Shasta, California Mount Rainier, Washington

Killer Events and Processes Killer Events and Processes at Subduction-Zone at Subduction-Zone VolcanoesVolcanoes

Pyroclastic Flows Mount Mayan, Philippines, 1968 Mount Unzen, Japan, 1991 Mont Pelee, 1902-1903, 1929-1932 Mont Pelee, Martinique, 1902

Lahars Nevado Del Ruiz, Columbia, 1985

Hot SpotsHot Spots

Volcanism at Oceanic Hot spots Hawaii Killer Event of 1790

Volcanism at Continental Hot Volcanism at Continental Hot SpotsSpots

Yellowstone National Park Eruptive Sequence

Resurgent domes

Gigantic Intraplate Volcanic Gigantic Intraplate Volcanic EruptionsEruptions

Long Valley, California Characteristics History

Volcano Monitoring and Volcano Monitoring and WarningWarning

SignsProgramBenefits