Is that the incident that killed that husband-wife volcano
photographers as well?
About 25 years ago, I did the Rotorua tour, and the they warned us
to stay on the path, "as six months ago, a US geologist that
should have known better, got too close to a mud pit, partially
slipped into it, and is still recovering."
Could have been a scare story, but with a legitimate purpose, though...
I believe that couple were a French husband and wife team, and they died in Japan. I think it was the pyroclastic flow that killed them. IOW’s, the superheated air that cascaded down the mountain, not the lava.