I don't know about story ideas but I can share my volcano experience with you. I've been two feet away from volcanic eruptions. I hiked up to the edge of the crater and watched the volcano spew molten lava, rocks, and clouds of ash. It was the most incredible display of power I've ever seen! Sometimes I could feel the next eruption coming and would see the shock wave right before the lava shot up right in front of my face. The sound was like a million fireworks going off at once. It was the most spectacular after it got dark. It started to rain hard, so I hiked back down. When I got down I looked back up and saw the flying lava landing on the path I had just left.