Aso crater is under Level 2 Eruption Warning with a 1km restricted zone around Nakadake crater off-limits to visitors. The crater road and facilities operate on seasonal schedules (currently autumn hours: 8:30 AM–5:30 PM), but you cannot enter the immediate crater area.
- Restricted radius: 1,000 m
- Crater shuttle bus: Operating
- Areas affected: Nakadake crater, Crater view 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 9 minutes ago