Informing humanitarians worldwide 24/7 — a service provided by UN OCHA

Vanuatu

Vanuatu Volcano Alert Bulletin n°3 - Tanna Activity (25 April 2018)

Attachments

ANNA VOLCANO
19°32’0”S 169°26’30”E Summit 1184ft (361m)
Current Vanuatu Volcano Alert Level:** Level 2**

**Yasur volcano is continuing in the major unrest state. Its Alert Level remains at Level 2 **.

The volcanic unrest continues at Yasur. The volcanic activity is likely to continue at similar levels, consistent with Volcanic Alert Level 2; The Danger Zone for life safety is limited in the **Permanent Exclusion Zone which is always closed (Shouldn’t be Access) and about 395 m around the eruptive vents **(See Safety Map below).

Observations confirm that the activity is confined in the crater. The activity consists of ongoing explosions. Some explosions remain strong and volcanic bombs may fall in and/or around the crater. Eruptive vents may emit volcanic gases and ashes cloud. Gas will be continue to be smelt while approaching the caldera and crater.

Alert Level for Yasur has been at the Level 2 since 18th October 2016. The current observations are consistent with the Alert Level 2 activity. Level 2 indicates _‘Major Unrest; Danger Zone is at 395 m around the eruptive vents ’ _.

Yasur is the best known and most frequently visited of the Vanuatu volcanoes. It has been in more-or-less continuous Strombolian activity since Captain Cook observed ash eruptions in 1774. This type of activity may have continued since ages. The active cone is largely contained within the small Yenkahe caldera, and is one of the youngest Holocenes volcano (11 700 years to present) of Vanuatu.

All tourism agencies, visitors, local authorities, people from Tanna Island and general public are reminded **not to access the Permanent Exclusion Zone which is about 395 m around the eruptive vents. In this area, volcanic bombs, ashes and gases will always be expected **.

**See the safety map and visitors Fact-Sheet of Yasur at the website www.vmgd.gov.vu/vmgd/index.php/geohazards/volcano/volcano-info/resources **.

Villages located close to the volcano may be impacted by ash falls and volcanic gases, especially those exposed to prevailing trade winds direction.

The Department of Meteorology and Geohazards will continue to closely monitor this volcano activity. More information will be provided when necessary.

**Note **: « Posted sign » : Signs will be installed later at the locations shown on the image.

_For further information, please contact Geohazards Division at the Vanuatu Meteorology and Geohazards Department at geohazards@meteo.gov.vu or 24686 _.