Aso crater is under Level 2 eruption warning with a 1km restriction zone around Nakadake crater. The crater rim is not accessible, but the park road and mountain plaza area are open to visitors during gate hours (currently 8:30 AM–6:00 PM through October).
- Restricted radius: 1,000 m
- Crater shuttle bus: Operating
- Areas affected: Nakadake crater, crater area within 1km
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 6 hours ago