With natural disasters and extreme weather on the rise, experts predict a warmer and more geologically turbulent future for the planet, reports JamieSeidel.
The idea that a few hot days warns of impending seismic activity is an ancient one. But it won’t go away.
Major storms, such as cyclones and hurricanes, can produce substantial changes in atmospheric pressure. This sometimes triggers a ‘slow earthquake’ – a slow but steady movement that does not create any noticeable jolt. “Even though such changes might be small compared with stress changes caused by the normal build-up of stress on a fault from tectonic processes, it could potentially hasten the onset of the next big quake,” says NASA geophysicist Paul Lundgren.“We’re not close to being able to predict when an earthquake may occur as a result of climate processes,” he concludes.
Massive glaciers suppress earthquake activity. And, in the case of Norway, research shows its volcanoes have been quietest when the surrounding glaciers were thickest.In the past five years, Iceland has experienced three significant eruptions.In Alaska, where the Pacific Plate slides under the North American Plate, the retreat of glaciers may also be unclamping the fault-line’s brakes.
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