The crater area is under Level 2 eruption warning with a 1km no-entry zone around the crater. Visitors can access the mountain plateau (Yamajō Hiroba) and surrounding areas, but cannot approach within 1km of the Nakadake crater itself. The crater-view road is open during seasonal daytime hours with gate closures in late afternoon.
- Restricted radius: 1,000 m
- Crater shuttle bus: Operating
- Areas affected: Nakadake crater (中岳火口), Crater rim / summit area
Traffic/Parking (schedule estimate, not live sensor data): No particular reason to expect crowding right now -- a weekday outside peak season and peak hours.
Official Aso regulation status ↗
· updated 2 hours ago
