Nikaragua · Kerucut piroklastik
Volcán Cerro Negro
Negro, Cerro
- Tipe
- Kerucut piroklastik
- Ketinggian
- 728 m
- Letusan terakhir
- 1999
- Tipe
- Kerucut piroklastik
- Negara
- Nikaragua
- Wilayah
- Amerika Tengah & Karibia / Central America Volcanic Arc
- Ketinggian
- 728 m
- Koordinat
- 12.506, -86.702
- Letusan terakhir
- 1999
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Kecil
- Batuan utama
- Basal / Pikrobasal
Ringkasan geologi
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.
Ringkasan Wikipedia
Ringkasan InggrisCerro 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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Riwayat letusan
24 tercatatGlosariumGaris waktu rinci
- 1999VEI 2Teramati1999-08-05 – 1999-08-07South flank (near Cristo Rey crater)
- 1995VEI 2Teramati1995-05-29 – 1995-12-06
- 1992VEI 3Teramati1992-04-09 – 1992-04-14
- 1971VEI 3Teramati1971-02-03 – 1971-02-14Summit and east flank
- 1969VEI 1Teramati1969-12-19 – 1969-12-29
- 1968VEI 3Teramati1968-10-23 – 1968-12-10Summit and south flank
- 1964VEI 2Metode tidak dinyatakan1964-07-02 – akhir tidak diketahui
- 1963VEI 1Teramati1963-03-16 – akhir tidak diketahui
- 1962VEI 2Teramati1962-03-21 – 1962-04-16
- 1961VEI 1Teramati1961-10-25 – akhir tidak diketahuiNE-flank fissure
- 1960VEI 3Teramati1960-09-28 – 1960-12-26Summit and south flank
- 1957VEI 2Teramati1957-09-04 – 1957-09-24Summit and east flank
- 1954VEI 2Teramati1954-02-16 – 1954-02-16
- 1950VEI 3Teramati1950-11-21 – 1950-12-17
- 1949VEI 2Teramati1949-06-16 – 1949-06-16
- 1948VEI 2Teramati1948-03-31 – akhir tidak diketahui
- 1947VEI 3Teramati1947-07-09 – 1947-08-02Summit and NE flank
- 1929VEI 2Teramati1929-02-10 – 1929-03-16
- 1923VEI 3Teramati1923-10-23 – 1923-12-11Summit and upper north flank
- 1919VEI 2Teramati1919-06-20 – 1919-06-30
- 1914VEI 2Teramati1914-10-28 – 1914-11-03
- 1899VEI 2Teramati1899-11-22 – 1899-11-29
- 1867VEI 2Teramati1867-11-14 – 1867-11-30NE-SW-trending fissure
- 1850VEI 2Teramati1850-04-13 – 1850-05-27
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