The crater area is under Level 2 Eruption Warning with a 1km restricted zone around Nakadake crater—visitors cannot access the crater itself, but the park road to the summit plateau (Sanjo Hiroba) is open during gate hours. Today is in the summer operating period (through Oct 31), so the road is open 8:30 AM–6:00 PM with gates closing at 5:30 PM.
- Restricted radius: 1,000 m
- Crater shuttle bus: Operating
- Areas affected: Nakadake crater, area within 1km of crater
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 minutes ago