Mount Yasur
| Mount Yasur | |
|---|---|
Mount Yasur, April 2006
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| Highest point | |
| Elevation | 361 m (1,184 ft) |
| Coordinates | 19°31′42″S 169°26′54″E / 19.52833°S 169.44833°ECoordinates: 19°31′42″S 169°26′54″E / 19.52833°S 169.44833°E |
| Geography | |
| Geology | |
| Mountain type | Stratovolcano |
| Last eruption | 1774 to present |
Mount Yasur is a volcano on Tanna Island, Vanuatu, 361 m (1,184 ft) high above sea level, on the coast near Sulphur Bay, southeast of the taller Mount Tukosm in diameter. It is a stratovolcano, caused by the eastward-moving Indo-Australian Plate being subducted under the westward-moving Pacific Plate. It has been erupting nearly continuously for over 3 years, although it can usually be approached safely. Its eruptions, which often occur several times an hour, are classified as Strombolian or Vulcanian.
The glow of the volcano was apparently what attracted Captain James Cook on the first European journey to the island in 1774. Today the mountain is a sacred area for the John Frum cargo cult. Members of the cult revere John Frum, a deified messenger who foretold the bringing of wealth to the island by American forces, and believe he resides in Mount Yasur with his countrymen. The village of Sulphur Bay, the center of the movement, claims the volcano as part of their territory.
A visiting television team found in a deep gully left by a lake which had suddenly drained, an exposure of old ash deposits including thick layers telling of two massive eruptions "more powerful than Mount St. Helens" several centuries or more ago; one of them had made the old caldera that Mount Yasur is inside.
Volcanic gas emissions from this volcano are measured by a Multi-Component Gas Analyzer System, which detects pre-eruptive degassing of rising magmas, improving prediction of volcanic activity.
Mount Yasur is an easily accessible active volcano, and is a major Vanuatu tourist attraction. The Vanuatu Government monitors the level of volcanic activity in the interests of the public, both tourists and locals alike. This monitoring is carried out by the Vanuatu Geo-Hazards Observatory.
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Wikipedia