April 13, 2010 Tsunami: 513 Lake, Hualcan Glacier, Peru

A huge glacier has broken off and plunged into a lake in Peru sparking a 23-meter high tsunami wave that destroyed a nearby town. The massive chunk of ice --called Hualcan glacier, it was around the size of four soccer fields -- tumbled into the '513 lake' in the Andes near Carhuaz, around 200 miles north of Lima. According to the Indeci civil defense institute, 50 homes have been destroyed. A water processing plant serving 60,000 local residents was also devastated when the wave struck on Sunday. Initially, six people were reported missing, feared dead under the debris -- but local governor Cesar Alvarez has said five of those have been found alive. Authorities evacuated mountain valleys, fearing more ice breakage after the tsunami, which are most commonly caused by earthquakes. Investigators have said the ice block from the Hualcan glacier measured 1,600 feet by 650 feet. Patricio Vaderrama, a Peruvian glacier expert, said: "The tsunami wave breached the lake's levees, which are 23m high -- meaning the wave was 23m high," or 75 feet. (reference #7015)