| Level 5 |
Evacuation |
Eruption or imminent eruption that may cause severe damage. Threat to life on the volcano and surrounding areas. |
No access. Complete evacuation of areas at risk, including residential areas. |
| Level 4 |
Evacuation of the vulnerable |
Increased likelihood of eruption that may cause serious damage. Threat to life on the volcano and surrounding areas. |
No access. Evacuation of elderly and vulnerable from surrounding areas. |
| Level 3 |
Restriction of proximity to the volcano |
Eruption or possibility of eruption that may severely affect a larger area, possibly including residential areas. Possible threat to life in such areas. |
Restrictions to areas at risk. Restrictions or prohibition of climbing. |
| Level 2 |
Restriction of proximity to the crater |
Eruption or possibility of eruption that may affect areas near the crater. Possible threat to life in such areas. |
Restrictions to areas near or around the crater. Check the latest warnings before climbing, and pay close attention to restricted trails. |
| Level 1 |
Potential for increased activity |
Possibility of volcanic ash emissions or other related phenomena may occur in the crater. Possible threat to life in the crater. |
No restrictions except for the crater. Check for the latest warnings before climbing. |