The crater area is under a Level 2 eruption warning with a 1km restricted zone around the crater off-limits to visitors. Access is allowed to the mountain plaza area and lower sections of the park road during posted operating hours (currently 8:30 AM – 6:00 PM in summer season through October 31), but direct crater viewing is not permitted.
- Restricted radius: 1,000 m
- Crater shuttle bus: Operating
- Areas affected: Nakadake crater, Mountain plaza area (Sanjou hiroba)
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 59 minutes ago
