do want to get straight to that devastating earthquake in Nepal. Look at these brand-new images. The death toll climbing above 3700 including at least 4 American. That earthquake triggering an... See More
do want to get straight to that devastating earthquake in Nepal. Look at these brand-new images. The death toll climbing above 3700 including at least 4 American. That earthquake triggering an emergency on top of the world. About 150 climbers stranded by avalanches on Mt. Everest. Their supplies running low. We have team coverage of these two unfolding situations. ABC's terry Moran filed this report on his way to the region. Reporter: This is what it looks like to face death on top of the world. This dramatic video shot by climber YOS tcht triggered by the massive earthquake hitting base camp on Mt. Everest, piles of rushing snow burying everything and everyone in its path. Are you okay? Yeah. Reporter: Here the avalanche from another angle. The sound of the avalanche hitting the ground deafening. Hurry! Reporter: Tevents, clothing and oxygen supplies strewn across the mountain. This morning frantic rescue efforts under way trying to reach the desperate survivors before supplies run out. More powerful aftershocks still a possibility. I heard another avalanche now and gets your heart pumping. Reporter: A race against time, the mountain too treacherous to walk down. Currently the only way to safely evacuate is by helicopter. This morning we spoke to kat Heldman on Mt. Everest as the deadly avalanche struck. A white billowing cloud of hell coming down the mountain. I thought I was dead. Reporter: The deadly avalanche on Mt. Everest claimed 18 lives including three Americans. Among those killed. Marisa eve girawong working on the mountain and Tom Taplin, a 61-year-old hiker and filmmaker from California. Also among the dead, Google executive Dan fredinburg. His sister writing on instagram, "Dan suffered from a major head injury and didn't make it. We appreciate all of the love that has been sent our way." For "Good morning America," terry Moran, ABC news, new Delhi, India. Joining us now from the Mt. Everest base camp is nick chinski on the mountain with his team when the earthquake and the avalanche hit. Nick, it is so good to see you this morning. How are you? How is the team and others, do you have enough food and supplies? We're doing really well up here. We were very fortunate when the avalanche struck. We got hit by just the edge of it, so it was terrifying. It was -- when you looked up and you saw this thing coming at you it was like out of a Hollywood movie. It was huge. This huge wave of snow. And we just hunkered into our tents and starting praying and lived through it. Do you feel the earthquake first or just since the avalanche? You know, we felt the earthquake first and in some of us me included didn't really think it was an earthquake. And it wasn't until we sort of saw this avalanche heading towards us that you quickly started to compute what was actually happening. And the next two minutes was absolutely terrifying. Tell us about those two minutes and what you were seeing after the avalanche. Once we hunkered into our tent, my wife and I were just sort of huddled in our sleeping bags holding each other and this whole tent was just moving with the wind and the snow being pelted into it. I mean, it was -- you can't really describe it. It was incredibly terrifying. We had no idea if we were going to get ripped off the ground inside these tents and flung into rocks and who knows what. And thank the lord we weren't. Thankfully that did not happen. How quickly did help arrive? You know, for us, we were the lucky ones, so once we got out of our tents realized we were largely okay, we started working our way up the valley. It was horrible. I mean, it was -- you know, huge wind, rocks and ice just tore through these tents and we immediately started looking for survivors. What was so difficult was that the winds were 200, 300 kilometers an hour that ripped these tents to shreds. It lasted for most of the afternoon was looking for people and survivor. We can only imagine and I know everyone there was just trying to do the best they could to help in any way they could. What are you being told about when you and your team and the others will be taken off that mountain? You know, for us right now as strange as it seems given what's going on in the country, this actually isn't the worst place to be. We've got clean water, good sanitation, a lot of food because we're prepared to be here for a couple of months. Nick, thank you very much. I know your family is happy to be seeing you right now. Thank you, sir. Thank you very much, robin. Okay, take care.
This transcript has been automatically generated and may not be 100% accurate.