Eruptive activity remains stable at Ambae, says new report from the Vanuatu Meteorology and Geohazards Department.
The Alert Level for Ambae volcano is lowered to Level 3 from Level 4.
The volcanic eruption at Ambae is continuing, but remains stable and confined to Lake Voui. Further scientific analyses confirm that there is currently no evidence of escalation of the activity. As a consequence, the Volcanic Alert Level is lowered to Level 3 from Level 4. The volcanic eruption is likely to continue in a steady state. Danger is restricted to the danger zone that extends 3 km from the active vent in Lake Voui.
Observation flights on 30th of September, 1st, 3rd and 5th October 2017 confirm the activity at the volcano is only occurring in one of the summit crater lakes (Lake Voui) and is not changing.
Photographs and thermal infrared images taken during observation flights show the activity consists of small explosions and ejection of hot rocks from vents on the new small island in the lake. There is also a small lava flow from the island into the lake. A small-scale eruption continues in Lake Voui at Ambae volcano.
These observations and the analysis of seismic, gas and deformation data by scientists from the Geohazards Division of the Vanuatu Meteorology and Geohazard Department (VMGD) and international scientists confirms that the volcano has settled in a more stable state of activity. The activity at Ambae is like what is seen and experienced at Yasur on Tanna Island. The local population can hear some of the explosions and see glow over the mountain at night.