Access to the Aso crater is currently restricted but partially open. Under JMA Eruption Warning Level 2, the area within 1km of the crater is off-limits to visitors, but the mountain-top plaza area is accessible. The shuttle bus and crater road are operating during designated seasonal hours (currently 8:30 AM - 6:00 PM, with gate closure at 5:30 PM).
- Restricted radius: 1,000 m
- Crater shuttle bus: Operating
- Areas affected: Nakadake crater area, Crater rim region
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 5 hours ago