Love waves (L-waves) are surface waves that move the ground in a horizontal, shearing motion. They do not have a vertical component. This side-to-side shaking is particularly destructive to buildings because most structures are designed to handle vertical gravity loads ...
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P-waves slow down significantly when entering the liquid outer core from the solid mantle. This sudden velocity drop causes the waves to bend (refract) toward the center of the Earth. This bending creates a “gap” on the surface between 103° ...
Earthquakes on the eastern margins of Asia (Japan, Kuril Islands, Philippines) are primarily caused by the subduction of the Pacific Plate beneath the Asian (Eurasian) Plate. As the heavy oceanic Pacific Plate sinks into the mantle, it creates a massive ...
An Earthquake is currently the most unpredictable natural disaster. While meteorologists can track cyclones, hurricanes and tornadoes using satellites and pressure systems, seismologists have no way to predict exactly when a fault will rupture. We can identify “where” (high-risk zones) ...
While erosion, volcanoes and weathering are processes that occur directly on or from the terrestrial surface, a Tsunami is a phenomenon that originates underwater (on the seafloor). Although its effects are felt on the coast, the “event” itself is a ...