Vanuatu Volcano Alert Bulletin n°4 - Ambrym Activity (April 29th 2021)
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Summit Elevation 4377ft (1334m)
Current Vanuatu Volcano Alert Level: Level 1
Ambrym volcano is continuing in the minor unrest state. The Volcanic Alert Level remains at Level 1.
The volcano activity at Ambrym is continuing at the low unrest level, consistent with the Volcanic Alert Level 1. New scientific analysis suggest that the Ambrym volcano activity is likely to continue at this level of minor unrest. Volcanic hazards remain about the summit craters area and the South East part of Ambrym Island (e.g. major cracks from 2018).
Some volcanic hazards do remain on Ambrym specifically at the summit and eastern part of the Island. These are related to the presence of cracked areas. In addition to the summit hazards, the presence of active rifts and faults (major ground cracking) at the South-East area of Ambrym are also hazardous, they will continue to be eroded and affected by earthquake activity. The danger zone for life safety at the summit area remains limited inside the Permanent Exclusion Zone at Benbow and Danger Zone A at Marum (See Ambrym caldera safety map below). These danger zones are about 1 km around Benbow and 2 km around Marum craters including Maben-Mbwelesu, Niri-Mbwelesu and Mbwelesu. An additional danger zone at the South-East of Ambrym remains within 500 meters from major cracks.