The second line. The video description for me says the following:
"HAWAIʻI VOLCANOES NATIONAL PARK - An incredible sight at the summit of Kilauea volcano on Saturday morning, as Episode 38 erupted enormous lava fountains across the caldera, destroying one of the webcams that was live streaming the event.
All images and video are courtesy the U.S. Geological Survey. A synthesized text-to-video voiceover was used in the narration for this story."
Well it would've been better if they kept the video on the actual camera that ate it instead of switching back and forth constantly. It's not Liam Neeson climbing a fence, guys.