Armero is the name of a city in Colombia that was buried by ash after a nearby volcano erupted, killing about 23,000 people. The Nevado del Ruiz volcano had been dormant for almost 150 years when people began hearing rumbling from the volcano in 1985. Authorities told people that the city was safe, with the mayor saying the night before the explosion that there was nothing to fear. On the morning of November 13, 1985 Nevado del Ruiz erupted, spewing volcanic ash and causing mudslides 104 meters thick. Almost no one in Armero survived the explosion. The city was buried in ash and mud, and remains buried like the city of Pompeii. A photo of Omayra Sánchez, a young victim of the tragedy, was published around the world. Nevado del Ruiz is a volcano in Colombia. ... November 13 is the 317th day of the year (318th in leap years) in the Gregorian Calendar, with 48 days remaining. ... This article is about the year. ... Pompeii is a ruined Roman city near modern Naples in the Italian region of Campania. ... Omayra SÃ¡nchez was a 13-year old victim of the Nevado del Ruiz volcano which erupted on November 14, 1985 in Armero, Colombia, killing 25,000. ...
The explotion of the volcano was not the real cause of the dissapearance of Armero. The Lagunilla river had been blocked for more than 2 months, when pryor small explosions of the Arenas volcano, had melted part of the Ruiz mountain. The Lagunilla looked more like a dam. The night when the volcano exploded, a gigantic ice rock from the top of the mountain gave up and fell into the Lagunilla river, creating a huge wave of mud, ashes and water. It is estimated that the wave was traveling at 300 miles per hour as it hit Armero. Traveling through the narrow Lagunilla river, it gained speed and power as it hit the plains of the city of Armero. It took less than 15 minutes from the time of the eruption, to the time the city was gone. Gigantic rocks embeded in the bottom of the Lagunilla river were moved from the prehisptoric positions and started travelling with the wave, destroying and killing everything in its path. The next morning, a plane transmiting to the civil Defense system in Colombia, was overflying what it was supposed to be Armero, he said, "My God, Armero has been erased", "Dios mio, Armero ha sido borrada del mapa"
Armero, F. and D. Ehrlich, "Finite Element Methods for the Analysis of Strong Discontinuities in Plates at Failure," Proceedings of the XI International Conference on Fracture (ICF11), Torino, Italy, January 2005, pp.
Armero, F., "Finite Element Modeling of Strong Discontinuities in Shells at Failure," Proceedings of the 5th International Conference on Computation of Shell and Spatial Structures, Salzburg, Austria, January 2005, pp.
Armero, F. and and D. Ehrlich, A Multi-Scale Model of Softening Hinge Lines in Plates at Failure and its Finite Element Implementation, UCB/SEMM-2004/08, University of California at Berkeley, January 2004, pp.
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