One of the many multicopter drone systems developed by the Autonomous Control System Institute at Chiba University is being used to monitor the recent volcanic activity near Mt. Fuji in Japan.
The Owakudani area near Hakone, a popular resort area close to Mt. Fuji, has been closed to tourist and even local workers, due to increased volcanic tremors indicating the possibility of earth movement or venting. The authorities have issued orders restricting travel into the hazardous area. However, scientist have been able to effectively monitor activity in the area utilizing a multicopter drone system from Chiba University.
The drone, which provides real time video feedback from a multitude of vantage points and angles, can also carry other sensors and instrumentation. The TBS news website report (in Japanese) also includes a short video showing the drone in action as well as a description of its operation.