Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Yasur
A column of steam rises above the summit crater of Yasur volcano, seen here from the west across Lake Siwi in 1988. Yasur, the best-known and most frequently visited of the Vanuatu volcanoes, has been in more-or-less continuous strombolian activity since Captain Cook observed ash eruptions in 1774. This style of activity may have continued for the past 800 years. The mostly unvegetated 361-m-high pyroclastic cone is capped by a nearly circular, 400-m-wide summit crater. Photo by Ian Nairn, 1988 (New Zeland Geological Survey).
Volcano Number:257100
Volcano Name:Yasur
Country:Vanuatu
Volcano Type:Stratovolcano
Last Eruption:2019
Elevation:361m
Tectonic Setting:Subduction zone / Intermediate crust (15-25 km)
Pop. within 5km:3636
Pop. within 10km:6068
Pop. within 30km:24748
Pop. within 100km:32427
Latitude:-19.532
Longitude:169.447



Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Volcano Number Volcano Name Eruption Number Activity Type Explosivity Index Max Explosivity Index Modifier Activity Area Activity Unit Start Evidence Method Start Date End Date
257100 Yasur 15183 Confirmed Eruption Radiocarbon (uncorrected) 850
257100 Yasur 15353 Confirmed Eruption Radiocarbon (uncorrected) 550
257100 Yasur 15354 Confirmed Eruption 2 Radiocarbon (uncorrected) 1150
257100 Yasur 15355 Confirmed Eruption 3 Historical Observations 1774/7/2 2019/7/11
Emissions Data from the Global Volcanism Program of the Smithsonian Institution No emissions data found for this volcano.


Data from the Earthchem Portal


Data from the SESAR Database


Data from the MaGa Database
Location: Yasur (View Details at MaGa DB)
Description: Yasur, the best-known and most frequently visited of the Vanuatu volcanoes, has been in more-or-less continuous strombolian and vulcanian activity since Captain Cook observed ash eruptions in 1774. This style of activity may have continued for the past 800 years. Located at the SE tip of Tanna Island, this mostly unvegetated pyroclastic cone has a nearly circular, 400-m-wide summit crater. Yasur is largely contained within the small Yenkahe caldera and is the youngest of a group of Holocene volcanic centers constructed over the down-dropped NE flank of the Pleistocene Tukosmeru volcano. The Yenkahe horst is located within the Siwi ring fracture, a 4-km-wide, horseshoe-shaped caldera associated with eruption of the andesitic Siwi pyroclastic sequence. Active tectonism along the Yenkahe horst accompanying eruptions has raised Port Resolution harbor more than 20 m during the past century.(GVP)
Hazard Description: not availabe
Type: volcanic_plume
Region: Tafea Province, Vanuatu
Country: Vanuatu
Volcanic Complex: Yasur
Gas Flux Data:
Measurement Name Detail Specie Flux Std. Dev. Unit of Measure
Yasur_21102007 Detail CO2 840 0 Mg/d