A young yoga student is among nearly 40 Britons who are currently missing in Nepal in the aftermath of the devastating earthquake which has killed 4,000 people. Susannah Ross, 20, told friends she was going trekking last week but has not been heard from since Friday and may be unable to contact her loved ones at home in Britain. While many of those initially reported missing have since been found safe and well, there are still several dozen British travellers who have not been heard from since the disaster on Saturday morning. Missing: Susannah Ross, pictured, is among the dozens of Britons currently in Nepal who have not been heard of since Saturday's earthquake . Couple: Chloe Pincho and Brennan White, pictured, were climbing Mount Everest when the earthquake hit two days ago . A number of Britons were climbing Mount Everest at the time of the quake, while others were staying in the capital Kathmandu or trekking through rural areas. Miss Ross's family said today that they had been unable to contact the backpacker since the disaster struck and were increasingly concerned about her. She had recently set off on a three-week trek and warned relatives at home in Bath they might not hear from her during that time, but they now hope she will call to let them know she is safe. Her mother Judy said: 'We are just waiting around really. We don't know what is going on. Before the trek she said, "Don't expect to hear from me necessarily until I get back." We are doing what we can.' The 20-year-old worked as a waitress to save money for her trip to Asia, where she worked at a farm in Nepal before going trekking. She was due to continue to India for a yoga course in June. Among the other Britons who have not been in contact with home since the 7.8 magnitude earthquake are a middle-aged married couple. Barbara and Ian Nightingale, who are from Nottingham and in their 60s, were believed to be trekking in Nepal at the time of the quake. Appeal: Tom Southgate, left, and Samuel Beckett, right, have not been heard of since the disaster . Search: Matt Carapiet, left, and Jack Kilpatrick, right, are currently the subject of online appeals from their desperate families . Fears are growing over Julius Olatokunbo, 53, from Forest Hill in south-east London, after a climber wrote online that he had been 'taken with an avalanche' and separated from his group. Relatives of Samuel Beckett, 23, who was in Kathmandu at the time of the quake, say they are concerned because they have not heard from him in a week. Speaking from his home in Leicester, his father Martin said: 'We have not heard anything. He is still listed as missing. We just keep watching the news and keep looking through the social media sites.' A couple from Carshalton in Surrey, Chloe Pincho and Brennan White, were trekking up Mount Everest at the time of the disaster and their whereabouts is now unknown. The parents of Matt Carapiet, 23, from Kent made an online appeal for him to contact them after he went missing in the wake of the crisis. Abroad: Martin Gattuso, left, lives in Nepal where he is a Buddhist monk; Jake Whyles, right, was visiting the mountainous country . 41-year-old Scottish woman Seobhan McGuigan and Jack Young, 21, from Lincolnshire are two more Britons to be on the list of the missing. 59-year-old Janet Brownlie and Jack Kilpatrick, 24, from Teddington in Middlesex, are also out of contact. Judith Ridgewell, who is in her 40s and from Cornwall, has gone missing on her travels, and Jake Whyles, 24, from Lincolnshire is also out of contact. Gary Williams, 52, from Plymouth was last heard from on Friday night, when he sent an email to his relatives while trekking in Nepal. Norah Arscott, 77, from Somerset; Philip Green, 30, from London; and Shaun Bailey, 27, from Stoke-on-Trent are all reported as missing. 24-year-old Naomi Everett, from Cheshire, is also on the Red Cross list of the missing, along with Lloyd Davies, 22, from Beckenham. Rescue: The scene at Everest base camp after the earthquake killed a number of climbers on the world's tallest mountain . Carnage: A building in Bhaktapur, near Kathmandu, which was almost completely destroyed by the natural disaster . Another missing teenager is Annette Burd, 18, from Leicestershire, while relatives of Tom Southgate, 23, are anxiously waiting to hear from him in Nottingham and Heather Stretton, 47, from Lincolnshire is also missing. Richard Jones, 33, from Worcestershire went missing while trekking in Annapurna; Victoria Barkas, 34, and Ian Norquay, from Sussex have also been in the area. Also missing are two Britons who have moved to South Asia - Simon Charlesworth, 49, and Buddhist monk Martin Gattuso, 38, originally from Norfolk. Around 10 British-born expats living in Australia are currently being sought. A number of other British travellers were initially reported missing but were able to contact their families within a day or two. These included Sebastian Lovera, 22, who was hiking to Mount Everest at the time of the earthquake but has now returned to Kathmandu to help victims of the disaster. Teenager Michael Walker, a gap-year student from Exeter who had been trekking in the region, was found safe and well today after his parents and former teachers issued an appeal. Abdulla Dahab, 21, from London was also located for the first time today, allaying the fears of his family who had not heard from him as he set off on a mountain climb at the time the earthquake hit.
Susannah Ross, 20, went on a trek last week and has not been heard from since the earthquake on Saturday .
Other missing Britons include a married couple and a climber who was apparently caught in an avalanche .
Around 40 travellers from the UK are listed as being missing in the wake of the deadly disaster .