Japan Volcano AlertsAsosan: volcanic alert level
StatusLevel 2 (Do not approach the crater)lowered
阿蘇山
JMA’s current status for Asosan is: Level 2 (Do not approach the crater) (issued Sep 1, 2026 16:00 JST).
Last updated:
Always follow the latest announcements of the Japan Meteorological Agency and local municipalities, including entry restrictions. This site may lag behind official information. Official information from JMA
Latitude, longitude32.884, 131.104
レベル２（火口周辺規制）
What the alert levels mean
Level 5 (Evacuate) and Level 4 (Evacuation of elderly people etc.) concern residential areas; Level 3 (Do not approach the volcano) and Level 2 (Do not approach the crater) restrict access to the mountain or crater area; Level 1 means ‘Note that this is an active volcano’. Volcanoes without alert levels receive warnings such as ‘danger near the crater’ instead.