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A flood caused by a glacial lake outburst flood on 13 December 1941 killed an estimated 1,800 people along its path in Peru, including many in the town of Huaraz. The cause was a block of ice that fell from a glacier in the Cordillera Blanca mountains into Lake Palcacocha. This event has been described as a historic inspiration for research ...
In April 2003, NASA scientists discovered a fissure in the glacier above Lake Palcacocha on Terra satellite images of November 2001. Their warnings reached Peru just two weeks after the staff of the UGRH (Unidad de Glaciologia y Recursos Hidricos) had done some field mapping of Lake Palcacocha, where a moraine rupture had caused a minor flood on 19 March 2003 which the safety constructions ...
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Finally, Lake Agassiz was an immense glacial lake located in the center of North America. Fed by glacial runoff at the end of the last glacial period, its area was larger than all of the modern Great Lakes combined, and it held more water than contained by all lakes in the world today. It drained in a series of events between 13,000 BP and ...
A supraglacial lake on the surface of the Bering Glacier in 1995. A supraglacial lake is any pond of liquid water on the top of a glacier. Although these pools are ephemeral, they may reach kilometers in diameter and be several meters deep. They may last for months or even decades at a time, but can empty in the course of hours.
At 15:23 on Sunday, May 31, 1970, the Ancash earthquake (also known as the Great Peruvian earthquake) struck off the coast of Peru with a moment magnitude of 7.9. The shaking dislodged a slab of rock about 800 m (2,600 ft) wide from the western face of Huascarán's north peak, at an elevation of roughly 5,600 to 6,200 m (18,400 to 20,300 ft).
Giant current ripples are an important feature of the Channeled Scablands in Washington state, U.S., which formed during the Last Glacial Maximum as a result of at least 39 glacial lake bursts, called the Missoula floods, which originated from glacial lakes Columbia in Washington and Missoula in Montana. [10] [11] [12] [13]
The greatest outburst of Lake Agassiz happened to be its last drawdown, occurring about 8.4 ka calendar years [10] when it had joined glacial Lake Ojibway. Lake Ojibway was located on the Laurentide Ice Sheet margin in the southeastern portion of the Hudson Bay basin. The total surface area of the merged lake was approximately 841,000 km 2. [4]