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.
The atmosphere around us only contains five parts per million of helium and that makes it too low to recover. Currently helium comes from natural gas and this seems to be the only economically viable source for the moment. It is captured with the natural gas in a porous rock formation years ago and when the natural gas is withdrawn the helium is also released from the natural gas reservoir. The natural gas â mainly methane â contains 0,5% or 5 000 ppm. This makes the recovery of helium more economical.