It saw a large movement of the earth (a maximum of 3m). They are but one reminder of the hazards faced by the communities that live in these mountains. The largest event, a magnitude-8.0 quake known as the 1934 Nepal-Bihar earthquake, occurred in a similar location to the 1988 quake. All of the dead and injured found by Sunday were at the base camp. Tectonic plates are the large, thin, relatively rigid plates that move relative to one another on the outer surface of the Earth. This is shedding new light on so-called seismic gaps, where the absence of large historical ruptures makes for very significant concern. Nepal sits on the boundary of the two massive tectonic plates that collided to build the Himalayas. With at least 17 people believed to have been killed on Everest, and 61 injured, climbers in the camp sent frantic messages calling for helicopter assistance to evacuate the most badly wounded. Our research in the Himalaya is beginning to shed light on these massive processes, and understand the threat they pose to local people. But with each new quake researchers are gaining valuable new insights. Our team is caught in camp 1. Satellite images and maps showing the devastation caused by the earthquake in Nepal that struck on Saturday 25 April and its aftermath. Carsten Lillelund Pedersen, a Dane who is climbing Everest with Belgian Jelle Veyt, said on his Facebook page that they were on the icefall when the earthquake hit. Our work in Uttarakhand and elsewhere is revealing how the rupture lengths and magnitude of Himalayan quakes is controlled by long-lived geological structures. Only about 15 earthquakes a year in the world — out of 1.3 million total temblors — are magnitude-7.0 or higher, according to the U.S. Geological Survey. At the location of Saturday's earthquake, about 50 miles to the northeast of the Nepalese capital of Kathmandu, the India plate is converging with Eurasia at a rate of about 2 inches per year toward the north-northeast, driving the uplift of the Himalayan mountain range. April 25, 2015. Lucknow, Patna,
Their ongoing convergence also means earthquakes. Over about a minute, the rupture propagated east by some 130km and south by around 60km, breaking a fault segment some 15,000 square kilometres in area, with as much as 3m slip in places. Much more badly injured. A devastating 7.8-magnitude earthquake struck northern Nepal, on April 25, 2015, injuring over 22,000 people and killing over 8,0001 in addition to causing significant infrastructure damage. These settlements were along the Pasang Lamu highway in the Trishuli valley and Kodari highway in the Bhotekoshi and Sunkoshi valleys. Romanian climber Alex Gavan, who was in the base camp and survived by running from his tent, posted a desperate appeal on Twitter on Saturday. “This was both fortunate and surprising. The devastating earthquake and resulting tsunami that hit parts of Japan in 2011, killing thousands of people, was magnitude-9.0. It was also felt 380 miles away in Lhasa in Tibet, and 400 miles away in Dhaka, Bangladesh. Grieving here. NASA contributions included “vulnerability maps,” used to determine risks that may be present; and “damage proxy maps,” used to determine the type and extent of existing damage. New techniques are also helping us read the record of past earthquakes with ever greater accuracy. Earlier, Gavan had described his own close call, writing there had been a “huge avalanche” and “many, many” people were up on the mountain. It was shallow: an estimated 15km below the surface at the quake’s epicentre. “The toll could go up, it may include foreigners as well as Sherpas,” he said. Earthquakes occur when strain builds up in Earth’s crust until it gives way, usually along old fault lines. The report “Impact of Nepal’s 2015 Gorkha Earthquake-Induced Geohazards” said the lives of eight million people, almost one-third of Nepal’s population, were impacted. The earthquake occurred on a convergent collision plate boundary. The avalanche appeared to have swept through the middle section of the strung-out camp. Other ongoing hazards include floods and monsoonal landslides, as exemplified by the Kedarnath disaster of 2013 which killed more than 5,000 people. The nationalities of base camp victims were unclear as climbers described chaotic attempts to treat the injured amid fears of more landslides and aftershocks that continue to rattle the region. But the damage due to landslides and glacier lake floods was less than anticipated, it added. A 1934 earthquake in Nepal caused more than 10,000 deaths. 26 Apr 2015 Nepal toll rises after worst quake in decades Magnitude 7.8 quake east of Pokhara kills at least 1,800 people as aftershocks continue and scale of disaster unfolds. This article was originally published on The Conversation. Huge disaster.Helped searched and rescued victims through huge debris area.Many dead.Much more badly injured.More to die if not heli asap. In Nepal, home to more than one-third of the Himalayan range, the damage by the quake was devastating, compared to the Tibet Autonomous Region in China or India and Bangladesh. Within Nepal, more than 8,800 people died, 22,000 were injured and 100,000 displaced. The collapsing icy mass swept away a part of the Everest base camp and claimed 22 lives. , Chandigarh , Dehradun,
Another quake in Kashmir in 2005, measuring 7.6, killed around 80,000 people. Research paper discussion of results. The April 25, 2015 earthquake in Nepal destroyed housing in Kathmandu, damaged World Heritage sites, and triggered deadly avalanches around Mount Everest. © 2020 USA TODAY, a division of Gannett Satellite Information Network, LLC. Enjoying EarthSky? On April 25, 2015, a magnitude 7.8 earthquake in Nepal, referred to as the Gorkha earthquake, struck killing more than 8,000 people and injuring more than 21,000. Everest and stranded hundreds at the base camp. Our Sherpa team's hometowns of Phortse + Khumjung also hit hard. These quakes are a dramatic manifestation of the ongoing convergence between the Indo-Australian and Asian tectonic plates that has progressively built the Himalayas over the last 50 million years. While the occurrence of large earthquakes in this region is not unexpected, the seismological community still has little useful understanding of how to predict the specific details of such ruptures.
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