Thursday, June 18, 2015

Monte Evereste deslocou-se para sudoeste devido a sismo no Nepal



 Photograph: STR/AFP/Getty Images

O pico mais alto do mundo, o Monte Evereste, moveu-se três centímetros para sudoeste devido ao sismo no Nepal que devastou o país em Abril, escreve o jornal oficial chinês China Daily.

O sismo de magnitude 7,8 reverteu o movimento gradual da montanha para nordeste, de acordo com o jornal, que cita a Administração Nacional de Topografia, Cartografia e Geoinformação da China.
Antes do sismo, o Evereste já se tinha movido 40 centímetros para noroeste na última década, à velocidade de quatro centímetros por ano. A montanha também se elevou três centímetros no mesmo período de tempo.
Dois sismos, a 25 de Abril e 12 de Maio 2015, fizeram mais 8.700 mortos no Nepal, gerando deslizamentos de terras e destruindo meio milhão de casas.
No entanto, o segundo abalo, de magnitude 7,3, não moveu a montanha, informa o China Daily.
ISG//JCS

Mount Everest from the space
The world’s tallest peak, Mount Everest, moved three centimetres (1.2 inches) to the southwest because of the Nepal earthquake that devastated the country in April25 and May 12 2015, Chinese state media reported on Tuesday.
The 7.8-magnitude quake reversed the gradual northeasterly course of the mountain, according to a report in the state-run China Daily, citing the national administration of surveying, mapping and geoinformation.
Before the quake, Everest had moved 40cm to the northeast over the past decade at a speed of 4cm a year, the report said. The mountain also rose 3cm over the same time period.


Everest after the earthquake
credits: Laurence Tan/Reuters
http://i.guim.co.uk/
The earthquake caused an avalanche on Everest, killing 18 people and leaving the climbing base camp in ruins. It prompted authorities in both China and Nepal to cancel all climbs for this year.
The mountain straddles the border between the two countries.
Two earthquakes, on 25 April and 12 May, killed more than 8,700 people in Nepal, triggered landslides and destroyed half a million homes, leaving thousands without shelter just weeks ahead of monsoon rains.
The second quake, which had a magnitude of 7.3, did not move the mountain, China Daily said.


mount Everest
Situé à la frontière du Népal et de la Région autonome chinoise du Tibet, l'Everest constitue un bon point d'observation du mouvement des plaques tectoniques eurasienne et indienne, qui se rencontrent dans cette région hautement sismique, selon Xu Xwei

L'Everest « se déplace constamment vers le nord-est et le séisme lui a fait faire un petit bond dans la direction opposée », a déclaré le vice-directeur de l'Institut de géologie de l'administration chinoise chargée des séismes, Xu Xiwei, cité par le China Daily

Le double séisme a fait plus de 8 700 morts au Népal et a été meurtrier pour les alpinistes dans l'Everest, avec au moins 18 morts sous des avalanches. A lire ici


Geração 'explorer'

17.06.2015
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