Kolombia · Stratovolkan
Nevado del Ruiz
Ruiz, Nevado del
- Tipe
- Stratovolkan
- Ketinggian
- 5279 m
- Letusan terakhir
- 2026
- Tipe
- Stratovolkan
- Negara
- Kolombia
- Wilayah
- Amerika Selatan / Northern Andean Volcanic Arc
- Ketinggian
- 5279 m
- Koordinat
- 4.892, -75.324
- Letusan terakhir
- 2026
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Komposit
- Batuan utama
- Andesit / Andesit basaltik
Ringkasan geologi
Nevado del Ruiz is a broad, glacier-covered volcano in central Colombia that covers more than 200 km2. Three major edifices, composed of andesitic and dacitic lavas and andesitic pyroclastics, have been constructed since the beginning of the Pleistocene. The modern cone consists of a broad cluster of lava domes built within the caldera of an older edifice. The 1-km-wide, 240-m-deep Arenas crater occupies the summit. The prominent La Olleta pyroclastic cone located on the SW flank may also have been active in historical time. Steep headwalls of massive landslides cut the flanks. Melting of its summit icecap during historical eruptions, which date back to the 16th century, has resulted in devastating lahars, including one in 1985 that was South America's deadliest eruption.
Ringkasan Wikipedia
Ringkasan InggrisNevado del Ruiz, also known as La Mesa de Herveo is a volcano on the border of the departments of Caldas and Tolima in Colombia, being the highest point of both. It is located about 130 km (81 mi) west of the capital city Bogotá. It is a stratovolcano composed of many layers of lava alternating with hardened volcanic ash and other pyroclastic rocks. Volcanic activity at Nevado del Ruiz began about two million years ago, during the Early Pleistocene or Late Pliocene, with three major eruptive periods. The current volcanic cone formed during the present eruptive period, which began 150,000 years ago.
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Riwayat letusan
24 tercatatGlosariumGaris waktu rinci
- 2014VEI 2Teramati2014-11-18 – 2026-03-16Arenas crater
- 2012VEI 3Teramati2012-02-22 – 2013-07-12Arenas Crater
- 1994VEI ?Metode tidak dinyatakan1994-04-23 – 1994-04-23
- 1985VEI 3Teramati1985-09-11 – 1991-07-13Arenas Crater
- 1984VEI 1Teramati1984-12-22 – 1985-03-19Arenas Crater
- 1916VEI 2Teramati1916-07-02 – akhir tidak diketahui
- 1845VEI 3Teramati1845-02-19 – akhir tidak diketahuiArenas and La Olleta(?) craters
- 1833VEI 2Metode tidak dinyatakan1833-07-02 – akhir tidak diketahui
- 1831VEI 2Teramati1831-07-02 – akhir tidak diketahui
- 1829VEI 2Teramati1829-06-18 – akhir tidak diketahui
- 1828VEI 2Teramati1828-06-16 – akhir tidak diketahui
- 1826VEI 2Metode tidak dinyatakan1826-07-02 – akhir tidak diketahui
- 1805VEI 2Teramati1805-03-14 – akhir tidak diketahui
- 1623VEI 1Teramati1623 – akhir tidak diketahuiNear Arenas Crater
- 1595VEI 4Teramati1595-03-09 – akhir tidak diketahuiArenas Crater
- 1570VEI ?Teramati1570 – akhir tidak diketahuiArenas Crater?
- 1541VEI ?Metode tidak dinyatakan1541 – akhir tidak diketahui
- 1350VEI 4Perkiraan geologi1350 – akhir tidak diketahuiArenas Crater
- 675 (±50 tahun)VEI 3Perkiraan geologi675 – akhir tidak diketahuiArenas Crater
- 350 (±300 tahun)VEI 3Perkiraan geologi350 – akhir tidak diketahuiWest flank
- 200 SM (±100 tahun)VEI 4Perkiraan geologi200 SM – akhir tidak diketahuiArenas Crater
- 850 SMVEI 4Perkiraan geologi850 SM – akhir tidak diketahuiArenas Crater
- 1245 SM (±150 tahun)VEI ?Perkiraan geologi1245 SM – akhir tidak diketahuiENE flank ? (Alto la Piramide ?)
- 6660 SMVEI ?Perkiraan geologi6660 SM – akhir tidak diketahuiArenas Crater
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