Madang Province, Papua New Guinea
| Year | Volcanic Activity |
| 1953-55 | Intermittent Surtseyan activity. |
| 1961 | Strong vapour observed at crater. Possible eruption. |
| 1968 | Surtseyan activity. |
| 1973-4 | Small eruption within the crater lake. Fissures formed. |
| 1979 | New fumarolic activity. |
| 1993 | Eruption under the caldera lake. |