As an earthquake measuring 7.9 on the Richter scale hit Nepal at 11.41 a.m. on Saturday, the climbers on Mount Everest kept tweeting to apprise well-wishers about their situation.

At around 12,00 p.m. Daniel Mazur @danielmazur, a climber from England, tweeted: "A Massive earthquake just hit Everest. Basecamp has been severely damaged. Our team is caught in camp 1. Please pray for everyone."

Few minutes later, Mazur’s tweet said: "Aftershock! #Everest team is in camp 1, hanging on. #Icefall route destroyed."

At around 3.00 p.m., Mazur tweeted: "Aftershock! #Everest team is in camp 1, hanging on. #Icefall route destroyed."

In another tweet, Mazur said: "#Everest base camp damaged. Camp 1 swept away, Daniel Mazur team stuck in camp 1. #Nepalquake".

Thomas Kilroy [email protected], a friend of Mazur replied : "Keep safe Daniel – hang in there. We are all thinking of you and hoping your route to safety sees you home."

At around 12.00 p.m., another climber Adrian Ballinger @alpenglowexp , from Squaw Valley, California, US, tweeted: "Big #earthquake just now in Everest BC. Lots of rock and ice falling. We all ok. Hoping more exposed South Side also ok. #Everest2015"

A minute later, Ballinger tweeted: "Strong aftershocks continuing here on North Side of #Everest. #earthquake #Everest2015"

Around 3.00 p.m. climber Ji Davidson from Fort Collins, Colorado, US, tweeted: "We’re safe at camp 1. Apparent earthquake. We had avi nearby, powder blast & glacier moved. Injuries in basecamp. Sta http://dlor.me/33G5Y6Z" 

At 10.00 a.m., Davidson had tweeted: "We are above the icefall and safe at camp 1 at 19800 ft!

http://dlor.me/DEN652B"