日本 · 溶岩ドーム
新島
Niijima
- タイプ
- 溶岩ドーム
- 標高
- 432m
- 最終噴火
- 886年
- タイプ
- 溶岩ドーム
- 国
- 日本
- 地域
- 北西太平洋 / Izu Volcanic Arc
- 標高
- 432m
- 座標
- 34.397, 139.270
- 最終噴火
- 886年
- テクトニクス環境
- 沈み込み帯 / 海洋地殻 (< 15 km)
- 火山地形
- 小規模 (珪長質)
- 主要岩石
- 流紋岩
地質学的概要
The elongated island of Niijima, SSW of Oshima, is 11 km long and only 2.5 km wide. Eight low rhyolitic lava domes are clustered in two groups at the northern and southern ends of the island, separated by an area of flat-topped domes and a low isthmus of pyroclastic deposits. The Mukaiyama complex on the south and the Atchiyama lava dome on the north were formed during eruptions in the 9th century CE, the last known activity. Shikineyama and Zinaito domes form small islands immediately to the SW and W, respectively, during earlier stages of volcanism. Earthquake swarms occurred during the 20th century.
Wikipedia の要約
英語版の要約Nii-jima (新島) is a volcanic Japanese island administered by the Tokyo Metropolitan Government. It is one of the Izu Seven Islands, group of the seven northern islands of the Izu archipelago, and is located approximately 163 kilometres (101 mi) south of Tōkyō and 36 kilometres (22 mi) south of Shimoda Shizuoka Prefecture. The island is the larger inhabited component of the village of Niijima Village, Ōshima Subprefecture of Tokyo Metropolis, which also contains the neighboring island of Shikine-jima and the smaller, uninhabited Jinai-tō. Nii-jima is also within the boundaries of the Fuji-Hakone-Izu National Park.
Wikipedia · CC BY-SA · 記事全文を読む →
噴火履歴
5件の記録用語集詳細タイムライン
- 886年VEI 4観測記録886-06-29 ~ 終了日不明Mukai-yama
- 856年VEI 2観測記録856 ~ 857Achi-yama
- 紀元前 1250年VEI ?地質学的推定紀元前 1250 ~ 終了日不明
- 紀元前 4350年VEI ?地質学的推定紀元前 4350 ~ 終了日不明Niijima-yama
- 紀元前 5950年VEI ?地質学的推定紀元前 5950 ~ 終了日不明
近くの火山
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。