PLATE TECTONICS A UNIFYING CONCEPT FOR UNDERSTANDING EARTHQUAKES AND VOLCANOES

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PLATE TECTONICSA UNIFYING CONCEPT FOR
UNDERSTANDING EARTHQUAKES AND VOLCANOES
Walter Hays, Global Alliance for Disaster
Reduction, University of North Carolina, USA
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PLANET EARTH, A UNIQUE DYNAMIC PLANET
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POSITION OF TECTONIC PLATES TWO EARTH DAYS AGO
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POSITION OF TECTONIC PLATES NOW
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SCHEMATIC MAP OF TECTONIC PLATES
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EARTHQUAKES DEFINE PLATE BOUNDARIES PACIFIC,
EURASIAN, NA, SA, NASCA, CARIBBEAN, COCOS, AND
PHILIPPINES PLATES
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SUBDUCTION OF CONVERGING PLATES
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(No Transcript)
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NORTH AMERICAN AND PACIFIC PLATES
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SAN ANDREAS FAULT BOUNDARY OF NA AND PACIFIC
PLATES
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SAN ANDREAS FAULT SO. CALIFORNIA
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THE CARIBBEAN TECTONIC PLATE
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(No Transcript)
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NORTH AMERICAN AND CARIBBEAN PLATE SUBDUCTION
ZONE
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PACIFIC, JUAN DE FUCA, AND NORTH AMERICA PLATES
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JUAN DE FUCA PLATE
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FAULTS COCOS PLATE SUBDUCTION ZONE
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ARABIAN, AFRICAN, ANATOLIAN, AND EURASIAN PLATES
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ARABIAN PLATE
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DEAD SEA RIFT ZONE
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FAULT MAP TURKEY
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COLLISION OF CONVERGING PLATES
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AFRICA, ARABIAN, EURASIA, AND INDIAN PLATES
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ANNEX 1MODELING THE POSITIONS AND MOVEMENTS OF
THE TECTONIC PLATES OVER TIME

• FROM 255 MILLION YEARS AGO
• TO
• 250 MILLION YEARS IN THE FUTURE

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HEAT FLOW, CONVECTION CUR-RENTS POWER PLATE
MOVEMENT
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PLATE POSITIONS LATE PERMIAN 255 MYA
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PLATE POSITIONS LATE JURASSIC 152 MYA
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PLATE POSITIONS LATE CRETACEOUS 94 MYA
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PLATE POSITIONS MIOCENE 14 MYA
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PLATE POSITIONS LAST GLACIAL MAXIMUM 18,000 YA
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PLATE POSITIONS MODERN WORLD
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FUTURE WORLD 50 MY
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FUTURE WORLD 250 MY