Tanna Island, Tafea Province, Vanuatu
19.52 S, 169.42 E,
summit elevation 405 m,
Yasur volcano, in southern Vanuatu is one of the world's most active volcanoes. The volcano has erupted many times per hour for at least 800 years. Yasur has been called the "Lighthouse of the Pacific" because of the regular Strombolian eruptions visible from sea.
Yasur volcano photos by John Seach
Yasur volcano - John Seach
Warning: Approaching the crater at Yasur volcano is dangerous at any time! Observers are at risk from projectiles, toxic gas and avalanches. Tourists regularly put their lives in danger by approaching too close to the crater. There is no safe viewing location at the crater's edge. See photos below of a dangerous incident at the volcano.
Volcanic activity levels which are quoted for the volcano do not provide a reliable safety guide. Any size eruption can happen at the volcano at any time.
Yasur volcano consists of a pyroclastic cone and ash plain. The active cone is located within the Yenkahe caldera. The volcano slopes are composed of grey unconsolidated ash and ejecta. The prevailing SE trade winds deposit fine ashfall over most of Tanna Island. The first written records of Yasur eruptions date to Cook's visit in 1774.
Beginning October 2013 increased activity occurred at Yasur volcano, Vanuatu. A large amount of ash emissions caused widespread damage to vegetation on Tanna Island. Ashfall was reported at Erromango Island 150 km north of Yasur volcano. On the evening of 3rd November 2013 John Seach witnessed large strombolian eruptions at Yasur. Explosions sent molten lava bombs up to 4 m diameter 250 m from the vent. Bombs were expelled onto the outside flanks of the cone, putting visitors at risk. The eruptions were some of the largest at the volcano since 1995.
Strombolian eruption, Yasur volcano
Yasur volcano, Vanuatu
Yasur volcano, Vanuatu 2009
Yasur volcano and crater glow 2010
Dangerous place to watch Yasur volcano - see below for what happens next!
Volcanic bomb narrowly misses tourists at Yasur volcano
Yasur volcano December 2010
Yasur eruption December 2010
Fern covered in ash from 2013 eruption of Yasur volcano
Yasur volcano Jungle
Port Resolution, Tanna Island from SE side of Yasur caldera
Algae growing in hot springs, Yasur volcano
Lake Siwi and Yasur volcano in 2000
Location of former lake Siwi - drained in 2000
Tours to Yasur since 1998
John Seach has been leading tours to Yasur for 14 years. John has been to the crater at Yasur volcano on more than 170 times.
Eruptions are Strombolian and mild Vulcanian.