More than 100 people are believed dead and as many as 50,000 are left homeless after an earthquake hit L'Aquila and other towns in central Italy. About 1,500 people were injured and many people are still missing as rescuers search desperately for survivors trapped beneath rubble. The 6.3-magnitude quake struck at 0330 (0130 GMT) close to L'Aquila
Tectonic Summary
The April 6th 2009 earthquake in Central Italy occurred as a result of normal faulting on a NW-SE oriented structure in the central Apennines, a mountain belt that runs from the Gulf of Taranto in the south to the southern edge of the Po basin in northern Italy. Geologically, the Apennines are largely an accretionary wedge formed as a consequence of subduction. This region is tectonically and geologically complex, involving both subduction of the Adria micro-plate beneath the Apennines from east to west, continental collision between the Eurasia and Africa plates building the Alpine mountain belt further to the north and the opening of the Tyrrhenian basin to the west. The evolution of this system has caused the expression of all different tectonic styles acting at the same time in a broad region surrounding Italy and the central Mediterranean. The April 6th, 2009 earthquake is related to normal faulting and the east-west extensional tectonics that dominate along the entire Apennine belt, primarily a response to the Tyrrhenian basin opening faster than the compression between the Eurasian and African plates.(USGS)
2 comments:
This video is so quiet, except for the poor victim being comforted. It must have been devastating to cause so much shock in everyone around.
Sadly we are often powerless against the forces of nature.
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