ニカラグア · 火砕丘
ネグロ山
Negro, Cerro
- タイプ
- 火砕丘
- 標高
- 728m
- 最終噴火
- 1999年
- タイプ
- 火砕丘
- 国
- ニカラグア
- 地域
- 中央アメリカ・カリブ海 / Central America Volcanic Arc
- 標高
- 728m
- 座標
- 12.506, -86.702
- 最終噴火
- 1999年
- テクトニクス環境
- 沈み込み帯 / 大陸地殻 (> 25 km)
- 火山地形
- 小規模
- 主要岩石
- 玄武岩 / ピクライト質玄武岩
地質学的概要
Nicaragua's youngest volcano, Cerro Negro, was created following an eruption that began in April 1850 about 2 km NW of the summit of Las Pilas volcano. It is the largest, southernmost, and most recent of a group of four youthful cinder cones constructed along a NNW-SSE-trending line in the central Marrabios Range. Strombolian-to-subplinian eruptions at intervals of a few years to several decades have constructed a roughly 250-m-high basaltic cone and an associated lava field constrained by topography to extend primarily NE and SW. Cone and crater morphology have varied significantly during its short eruptive history. Although it lies in a relatively unpopulated area, occasional heavy ashfalls have damaged crops and buildings.
Wikipedia の要約
英語版の要約Cerro Negro is an active volcano in the Cordillera de los Maribios mountain range in Nicaragua, about 10 km (6.2 mi) from the village of Malpaisillo. It is a very new volcano, the youngest in Central America, having first appeared in April 1850. It consists of a gravelly basaltic cinder cone, which contrasts greatly with the surrounding verdant hillsides, and gives rise to its name, which means Black Hill. Cerro Negro has erupted frequently since its first eruption. One unusual aspect of several eruptions has been the emission of ash from the top of the cone, while lava erupts from fractures at the base.
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噴火履歴
24件の記録用語集詳細タイムライン
- 1999年VEI 2観測記録1999-08-05 ~ 1999-08-07South flank (near Cristo Rey crater)
- 1995年VEI 2観測記録1995-05-29 ~ 1995-12-06
- 1992年VEI 3観測記録1992-04-09 ~ 1992-04-14
- 1971年VEI 3観測記録1971-02-03 ~ 1971-02-14Summit and east flank
- 1969年VEI 1観測記録1969-12-19 ~ 1969-12-29
- 1968年VEI 3観測記録1968-10-23 ~ 1968-12-10Summit and south flank
- 1964年VEI 2根拠の記載なし1964-07-02 ~ 終了日不明
- 1963年VEI 1観測記録1963-03-16 ~ 終了日不明
- 1962年VEI 2観測記録1962-03-21 ~ 1962-04-16
- 1961年VEI 1観測記録1961-10-25 ~ 終了日不明NE-flank fissure
- 1960年VEI 3観測記録1960-09-28 ~ 1960-12-26Summit and south flank
- 1957年VEI 2観測記録1957-09-04 ~ 1957-09-24Summit and east flank
- 1954年VEI 2観測記録1954-02-16 ~ 1954-02-16
- 1950年VEI 3観測記録1950-11-21 ~ 1950-12-17
- 1949年VEI 2観測記録1949-06-16 ~ 1949-06-16
- 1948年VEI 2観測記録1948-03-31 ~ 終了日不明
- 1947年VEI 3観測記録1947-07-09 ~ 1947-08-02Summit and NE flank
- 1929年VEI 2観測記録1929-02-10 ~ 1929-03-16
- 1923年VEI 3観測記録1923-10-23 ~ 1923-12-11Summit and upper north flank
- 1919年VEI 2観測記録1919-06-20 ~ 1919-06-30
- 1914年VEI 2観測記録1914-10-28 ~ 1914-11-03
- 1899年VEI 2観測記録1899-11-22 ~ 1899-11-29
- 1867年VEI 2観測記録1867-11-14 ~ 1867-11-30NE-SW-trending fissure
- 1850年VEI 2観測記録1850-04-13 ~ 1850-05-27
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。