The crater area is under Level 2 Eruption Warning with a 1km no-entry zone around Nakadake crater; visitors can access the summit plateau (Yamanoeba plaza area) but cannot approach the crater itself. The park road is currently open during daytime hours (8:30 AM - 6:00 PM through October 31) with shuttle bus service available.
- Restricted radius: 1,000 m
- Crater shuttle bus: Operating
- Areas affected: Nakadake first crater, crater vicinity
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 4 hours ago