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Michinmahuida

성층화산 · Chile · 2452m

Glacier-covered Volcán Minchinmávida is elongated along a NE-SW direction. The volcano has a mostly obscured 3-km-wide caldera, and a youthful eruptive center is located on the ENE side of the complex. An eruption from Minchinmávida was reported in 1742. Darwin observed the volcano in activity in 1834 on his renowned voyage that took him to the Galápagos Islands.
Glacier-covered Volcán Minchinmávida is elongated along a NE-SW direction. The volcano has a mostly obscured 3-km-wide caldera, and a youthful eruptive center is located on the ENE side of the complex. An eruption from Minchinmávida was reported in 1742. Darwin observed the volcano in activity in 1834 on his renowned voyage that took him to the Galápagos Islands. · 사진: NASA International Space Station image ISS006-E-42260, 2003 (http://eol.jsc.nasa.gov/). · Wikimedia Commons
화산 유형
성층화산
국가
Chile
지역
South America Volcanic Regions / Southern Andean Volcanic Arc
해발
2452m
좌표
-42.799, -72.445
마지막 분화
1835년
판구조 환경
Subduction zone / Continental crust (> 25 km)
화산 지형
Composite
주요 암석
Andesite / Basaltic Andesite
지질학적 요약

The glacier-covered basaltic-to-andesitic Volcán Michinmahuida, located west of Lago Reñihue, has a saddle-shaped summit with an elongated 3-km-wide caldera. The massive edifice is elongated in a NE-SW direction, and a youthful eruptive center is located on the ENE side of the complex. A major explosive eruption at the beginning of the Holocene produced the Amarillo Ignimbrite that may have created the now ice-filled summit caldera, and Holocene tephra deposits from summit and flank vents have been identified. An eruption was reported in 1742, and Charles Darwin observed activity in 1834. The latest known eruption, February-March 1835, produced a lava flow from a flank crater and lahars that reached the coast at Punta Chana.

Wikipedia 요약

영어 요약

Michinmahuida is a glaciated stratovolcano located in Los Lagos Region of Chile. It lies about 15 km east of Chaitén volcano, and was extensively covered in ash during the 2008 eruption of Chaitén. The stratovolcano lies above the regional Liquine-Ofqui Fault zone, and the ice-covered massif towers over the south portion of Pumalín Park. It has a summit elevation of 2,450 meters above sea level.

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분화 이력

요약 (VEI 시계열)
막대를 클릭하면 개별 분화가 표시됩니다
8400 BCE~8056 BCE · 1건 · 최고 VEI 65649 BCE~5305 BCE · 1건 · 최고 VEI 5540~884 · 1건 · 최고 VEI ?1227~1571 · 1건 · 최고 VEI 41571~1915 · 6건 · 최고 VEI 28400 BCE5993 BCE3242 BCE836 BCE1571

상세 타임라인

  1. 1915년 (±25년)VEI 2지질학적 추정
    1915 ~ 진행 중
  2. 1835년VEI 0관측 기록
    1835-02-20 ~ 1835-03-15
  3. 1834년VEI 2관측 기록
    1834-11-25 ~ 진행 중
  4. 1775년 (±40년)VEI 2지질학적 추정
    1775 ~ 진행 중
  5. 1742년VEI 2관측 기록
    1742 ~ 진행 중
  6. 1650년 (±50년)VEI ?지질학적 추정
    1650 ~ 진행 중
  7. 1550년 (±100년)VEI 4지질학적 추정
    1550 ~ 진행 중
  8. 700년 (±100년)VEI ?지질학적 추정
    700 ~ 진행 중
  9. 기원전 5500년 (±150년)VEI 5지질학적 추정
    BCE 5500 ~ 진행 중
  10. 기원전 8400년 (±150년)VEI 6지질학적 추정
    BCE 8400 ~ 진행 중

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