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Blup Blup

成層火山 · Papua New Guinea · 402m

The roughly 3.5-km-wide Blup Blup is north of the main Papua New Guinea island. The summit crater near the center of the island is visible in this August 2019 Planet Labs satellite image monthly mosaic (N is at the top). A small flank cone is on the SW coast and a submarine debris avalanche deposit is to the NE.
The roughly 3.5-km-wide Blup Blup is north of the main Papua New Guinea island. The summit crater near the center of the island is visible in this August 2019 Planet Labs satellite image monthly mosaic (N is at the top). A small flank cone is on the SW coast and a submarine debris avalanche deposit is to the NE. · 写真: Satellite image courtesy of Planet Labs Inc., 2019 (https://www.planet.com/). · Wikimedia Commons
タイプ
成層火山
国
Papua New Guinea
地域
南西太平洋 / Bismarck Volcanic Arc
標高
402m
座標
-3.507, 144.605
最終噴火
不明
テクトニクス環境
Subduction zone / Continental crust (> 25 km)
火山地形
Composite
主要岩石
Andesite / Basaltic Andesite
地質学的概要

The 2 x 3.5 km forested island of Blup Blup contains lava flows with well-defined flow fronts. Weak thermal areas are located on the W and N coasts. Most eruptive activity at the andesitic-dacitic volcano originated from a summit crater about 800 m in diameter, although there may be a lava dome on a ridge to the W and a small satellite cone along the SW coast. Reports of eruptions in 1616 and 1830 are erroneous, but there may have been eruptions during the Holocene (Johnson, 1990 p.c.). Blocks from a submarine debris avalanche lie to the NE of the island.

噴火履歴

詳細タイムライン

噴火記録はありません。

外部リンク

⚠ 参考情報です。緊急対応には使用しないでください。