Aso crater access is partially restricted under JMA eruption alert level 2, with an entry ban within 1km of the crater. The mountain plaza and scenic road are currently accessible during operating hours (AM 8:30 - PM 5:30 during autumn season), but crater-view exploration is prohibited.
- Restricted radius: 1,000 m
- Crater shuttle bus: Operating
- Areas affected: Nakadake first crater (中岳火口), Mountain plaza and surrounding area (山上広場一帯)
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 2 hours ago