Nepal Earthquake Of 2015

Magnitude, Death Toll, Aftermath, & Facts

Oct 30, 2024 - 03:03
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earthquake rubble in Bhaktapur, Nepal

See the recovery effort of Nepal after the 2015 earthquake, particularly in helping the childrenSee the recovery effort of Nepal after the 2015 earthquake, particularly in helping the childrenSee all videos for this article

Nepal earthquake of 2015, also called Gorkha earthquake, severe earthquake that struck near the city of Kathmandu in central Nepal on April 25, 2015. About 9,000 people were killed, many thousands more were injured, and more than 600,000 structures in Kathmandu and other nearby towns were either damaged or destroyed. The earthquake was felt throughout central and eastern Nepal, much of the Ganges River plain in northern India, and northwestern Bangladesh, as well as in the southern parts of the Plateau of Tibet and western Bhutan.

Nepal earthquake of 2015Nepal earthquake of 2015

Nepal aftershock damageNepal aftershock damage

The initial shock, which registered a moment magnitude of 7.8, struck shortly before noon local time (about 06:11 am Greenwich Mean Time). Its epicentre was about 21 miles (34 km) east-southeast of Lamjung and 48 miles (77 km) northwest of Kathmandu, and its focus was 9.3 miles (about 15 km) underground. Two large aftershocks, with magnitudes 6.6 and 6.7, shook the region within one day of the main quake, and several dozen smaller aftershocks occurred in the region during the succeeding days. On May 12 a magnitude-7.3 aftershock struck some 76 km (47 miles) east-northeast of Kathmandu, killing more than 100 people and injuring nearly 1,900.

The earthquake and its aftershocks were the result of thrust faulting (i.e., compression-driven fracturing) in the Indus-Yarlung suture zone, a thin east-west region spanning roughly the length of the Himalayan ranges. The earthquake relieved compressional pressure between the Eurasian tectonic plate and the Indian section of the Indo-Australian Plate, which subducts (underthrusts) the Eurasian Plate. Subduction in the Himalayas occurs at an average rate of 1.6–2 inches (4–5 cm) annually. Such tectonic activity adds more than 0.4 inch (1 cm) to the height of the Himalayan mountains every year.

The Himalayan region is one of the most seismically active in the world, but large earthquakes have occurred there infrequently. Before the 2015 temblor, the most recent large earthquake (that is, magnitude 6.0 or above) took place in 1988. That magnitude-6.9 event resulted in the deaths of 1,500 people. A magnitude-8.0 earthquake in 1934, however, killed approximately 10,600 people.

Initial reports of casualties following the early-morning earthquake put the death toll in the hundreds, but, as the day wore on, reports had the total number of fatalities surpassing 1,000 and nearing 1,900 by the end of the day. Within two weeks after the main quake occurred, rescue teams had reached all the remote villages in the earthquake zone, and a more-accurate picture of the earthquake’s human cost emerged. The deaths of approximately 9,000 people (which included fatalities in nearby parts of India, China, and Bangladesh) were confirmed, with nearly 16,800 injured and some 2.8 million people displaced by the earthquake. One United Nations (UN) report mentioned that more than eight million people (more than one-fourth of Nepal’s population) were affected by the event and its aftermath.

The earthquake produced landslides that devastated rural villages and some of the most densely populated parts of the city of Kathmandu. Initial damage estimates ranged from $5 billion to $10 billion. Inside Kathmandu, bricks and other debris from collapsed and partially collapsed buildings, which included parts of the famous Taleju Temple and the entire nine-story Dharahara Tower, filled the streets. The earthquake also triggered an avalanche on Mount Everest that killed at least 19 climbers and stranded hundreds more at Everest Base Camp and at camps higher up the mountain. Those at the high camps were soon airlifted to Base Camp, and all the climbers either hiked off the mountain or were flown out to other locations.

Immediately after the quake, the Nepalese government declared a state of emergency, and soon nearly the entire Nepalese army was assisting in rescue and recovery work. Nepal also called on the international community for aid. The UN quickly established the “Nepal Earthquake 2015 Flash Appeal” fund, whose goal was to raise an estimated $415 million for Nepal’s earthquake relief. By some two weeks after the earthquake, more than $330 million had been either provided directly or pledged.

India, China, and several other countries quickly responded by sending in aid and rescue teams. The delivery of relief services to the people in need during the first few days after the earthquake occurred, however, was complicated by the remoteness of many villages from the existing transportation network, congestion at Kathmandu’s international airport, and a shortage of heavy trucks, helicopters, and other vehicles capable of transporting supplies. In addition, earthquake debris—along with “tent cities” erected in streets and other open areas by Kathmandu residents who feared going back to their homes—contributed to making many of the city’s streets virtually impassable, hampering efforts by rescuers to reach people still trapped in the rubble. The debris was gradually cleared.

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