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An aerial view of the area around the Abruzzo capital L'aquila. REUTERS/Livio Anticoli/Pool

Magnitude 6.3 CENTRAL ITALY Monday, April 06, 2009 at 01:32:42 UTC. More than 179 people died and 50,000 were left homeless when a 6.3 magnitude earthquake shook central Italy early Monday.

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An aerial view of the area around the Abruzzo capital L'aquila. REUTERS/Livio Anticoli/Pool

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  1. Magnitude 6.3 CENTRAL ITALY Monday, April 06, 2009 at 01:32:42 UTC More than 179 people died and 50,000 were left homeless when a 6.3 magnitude earthquake shook central Italy early Monday. The quake’s epicenter was in L'Aquila. The narrow streets of the historic center were filled with rubble, and parked cars were crushed under large blocks of debris. An aerial view of the area around the Abruzzo capital L'aquila. REUTERS/Livio Anticoli/Pool AP Photo/Alessandra Tarantino

  2. Magnitude 6.3 CENTRAL ITALY Monday, April 06, 2009 at 01:32:42 UTC Cathedral Dome in L'Aquila Before and After Photos AP Photo/Pier Paolo Cito

  3. Magnitude 6.3 CENTRAL ITALY Monday, April 06, 2009 at 01:32:42 UTC The state archive in L'Aquila Before and After Photos Photo: Alessandro Bianchi/Reuters

  4. Magnitude 6.3 CENTRAL ITALY Monday, April 06, 2009 at 01:32:42 UTC This earthquake in Central Italy (~90 km or 55 miles NE of Rome) occurred as a result of normal faulting on a NW-SE oriented structure in the central Apennines, a mountain belt that runs through Italy. Normal Faulting Generalized extensional tectonics ANGELIER J. and COLLETTA B. (1983). - Tension fractures and extensional tectonics. Nature, 301, 5895, p. 49-51

  5. Magnitude 6.3 CENTRAL ITALY Monday, April 06, 2009 at 01:32:42 UTC • The Apennines Mountains • ~ 1,350 km long (the length of the Italian Peninsula) • Formed when the Eurasian and African plates collided • Initially formed as a fold and thrust belt striking NW-SE • Thrusting is no longer active in the Central Appennines • It is experiencing E-W extensional tectonics related to • opening of the Tyrrhenian basin • subducted slab retreat • Includes two active volcanoes (Etna and Vesuvius)

  6. Magnitude 6.3 CENTRAL ITALY Monday, April 06, 2009 at 01:32:42 UTC Historical Seismicity Source: USGS European-Mediterranean Seismological Centre Intensity – determined from instrument recordings Witness location : Latina (107 km / 66 miles from epicenter) "Around half past 3 a.m. I distinctly felt the bed trembling and the whole house shaking, much like a tree when a strong wind is blowing, and a window opened, too. This happened two times in a short interval, the second time in a stronger and more persistent way: it was 3:34 a.m."

  7. Magnitude 6.3 CENTRAL ITALY Monday, April 06, 2009 at 01:32:42 UTC Aftershocks are common following a large earthquake and often hamper rescue efforts that are underway. Aftershocks following the Magnitude 6.3 event Multiple significant aftershocks occurred in the hours following the main earthquake. Source: European-Mediterranean Seismological Centre

  8. Magnitude 6.3 CENTRAL ITALY Monday, April 06, 2009 at 01:32:42 UTC Paulet High School Burton on Trent, UK Sakarya University Sakarya, Turkey Bangkok, Thailand

  9. Magnitude 6.3 CENTRAL ITALY Monday, April 06, 2009 at 01:32:42 UTC Leek High Specialist Technology School Leek, UK Thomas Jefferson High School Cedar Rapids, IA Purdue University West Lafayette, IN Earthquake Note the attenuation of energy by the time waves reach the US. Seismometers

  10. Magnitude 6.3 CENTRAL ITALY Monday, April 06, 2009 at 01:32:42 UTC Earthscope Transportable Array This earthquake plotted across the array. Using this type of display, scientists are able to interpret arrivals and evaluate the variability over short distances. More Information: http://www.earthscope.org/observatories/usarray

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