Haiti Earthquake

Topics: Earthquake, Haiti, 2010 Haiti earthquake Pages: 3 (1046 words) Published: February 28, 2011
Haiti Earthquake
The earthquake that devastated Haiti Tuesday was the strongest temblor to hit the island nation in more than 200 years. The magnitude 7.0 quake caused tremendous damage, and the death toll may run into the thousands. What caused the Haiti earthquake, and why was it so devastating? What caused the earthquake?

The shaking started on Tuesday, Jan. 12, at 4:53 p.m. ET in the Haiti region, just 10 miles southwest of Port-au-Prince. The Haiti earthquake occurred at a fault that runs right through Haiti and is situated along the boundary between the Caribbean and North American plates, which are rocky slabs that cover the planet and fit together like a giant jigsaw puzzle. These two plates constantly creep past one another, about 0.8 inches a year, with the Caribbean plate moving eastward with respect to the North American slab. The two sides of the fault line moved past each other in an east-west direction and that's what caused the energy release and the Haiti earthquakes The high magnitude of this quake took scientists by surprise, as this system of faults hasn't triggered a major temblor in recent decades. The fault has, however, been linked to some historical big ones in 1860, 1770, 1761, 1751, 1684, 1673 and 1618, though none of these has been confirmed in the field as associated with this fault, according to the USGS. What does a magnitude 7.0 mean?

Magnitude measures the energy released at the source of the earthquake. Since magnitudes are given on a logarithmic scale, a 7.0-magnitude earthquake would release 10 times as much energy as a 6.0-magnitude temblor. Geoscientists also look at an earthquake’s intensity, which measures the strength of shaking produced by the earthquake at a certain location and is determined from the effects that shaking has on people, structures and the environment. How rare was the Haiti earthquake?

The Caribbean isn't exactly a hot zone for earthquakes, but they're not unheard of in the region....
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