The tremors of the earthquake were also felt in India and people could be seen rushing out of their homes and cities in Patna, Gurgaon and Delhi. The earthquake has just come after the devastating 7.8 magnitude earthquake that hit Nepal on April 25, 2015.he second earthquake, which came after a gap of approximately 30 minutes, had its epicentre 33 km (21mi) from Ramechhap and 83km (52mi) east of the capital city of Kathmandu. Tremors of the earthquake could be felt as far away as North India in cities like Srinagar, Amritsar, Lucknow and Jaipur.
The earth's atmospheric helium is replaced by the decay of radioactive elements in the earth's crust. Alpha decay, one type of radioactive decay, produces particles called alpha particles. An alpha particle can become a helium atom once it captures two electrons from its surroundings.
Its abundance is similar to this figure in the Sun and in Jupiter. This is due to the very high nuclear binding energy (per nucleon) of helium-4 with respect to the next three elements after helium. This helium-4 binding energy also accounts for why it is a product of both nuclear fusion and radioactive decay.Most helium in the universe is helium-4, and is believed to have been formed during the Big Bang.n Earth it is relatively rare â 5.2 ppm by volume in the atmosphere. Most terrestrial helium present today is created by the natural radioactive decay of heavy radioactive elements (thorium and uranium, although there are other examples), as the alpha particles emitted by such decays consist of helium-4 nuclei.