Kosta Rika · Stratovolkan
Poás Volcano
Poas
- Tipe
- Stratovolkan
- Ketinggian
- 2697 m
- Letusan terakhir
- 2026
- Tipe
- Stratovolkan
- Negara
- Kosta Rika
- Wilayah
- Amerika Tengah & Karibia / Central America Volcanic Arc
- Ketinggian
- 2697 m
- Koordinat
- 10.200, -84.233
- Letusan terakhir
- 2026
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Komposit
- Batuan utama
- Andesit / Andesit basaltik
Ringkasan geologi
The broad vegetated edifice of Poás, one of the most active volcanoes of Costa Rica, contains three craters along a N-S line. The frequently visited multi-hued summit crater lakes of the basaltic-to-dacitic volcano are easily accessible by vehicle from the nearby capital city of San José. A N-S-trending fissure cutting the complex stratovolcano extends to the lower N flank, where it has produced the Congo stratovolcano and several lake-filled maars. The southernmost of the two summit crater lakes, Botos, last erupted about 7,500 years ago. The more prominent geothermally heated northern lake, Laguna Caliente, is one of the world's most acidic natural lakes, with a pH of near zero. It has been the site of frequent phreatic and phreatomagmatic eruptions since an eruption was reported in 1828. Eruptions often include geyser-like ejections of crater-lake water.
Ringkasan Wikipedia
Ringkasan InggrisThe Poás Volcano, is an active 2,697-metre (8,848 ft) stratovolcano in central Costa Rica located within Poas Volcano National Park. It has erupted 40 times since 1828, with a strong eruption in April 2017—causing the evacuation of visitors and residents. The volcano and surrounding park were closed for nearly 17 months, with a 2.5 kilometer safety perimeter established around the erupting crater. On September 1, 2018, the park was reopened to the public only with limited access to the crater observation area. They have started to require a reservation on the National Park Website before visitation. Adjacent trails to Lake Botos, and the museum at the visitor center remained closed. The volcano erupted briefly twice in September 2019.
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Riwayat letusan
65 tercatatGlosariumGaris waktu rinci
- 2025VEI 2Teramati2025-01-05 – 2026-03-16
- 2023VEI 1Teramati2023-08-02 – 2023-08-11
- 2023VEI 1Teramati2023-12-01 – 2024-05-05
- 2022VEI 1Teramati2022-04-06 – 2022-04-06Crater lake - Fumarola Naranja
- 2019VEI 2Teramati2019-02-07 – 2019-09-30Caliente Summit Crater
- 2018VEI ?Teramati2018-05-25 – 2018-05-25Summit crater
- 2017VEI 1Teramati2017-04-12 – 2017-11-06Laguna Caliente Crater
- 2016VEI 1Teramati2016-06-05 – 2016-08-16Lake in summit crater
- 2009VEI 1Teramati2009-01-12 – 2009-03-21
- 2009VEI 1Teramati2009-11-16 – 2014-10-13
- 2008VEI 1Teramati2008-01-13 – 2008-01-13
- 2006VEI 1Teramati2006-03-24 – 2006-03-24
- 2006VEI 1Teramati2006-09-25 – 2006-12-16
- 1996VEI 1Teramati1996-04-08 – 1996-04-08
- 1994VEI 2Teramati1994-03-16 – 1994-10-16
- 1992VEI 1Teramati1992-02-16 – 1992-03-16
- 1992VEI 0Teramati1992-10-16 – 1993-09-16
- 1991VEI 1Teramati1991-03-06 – 1991-09-16
- 1987VEI 2Teramati1987-06-16 – 1990-06-16
- 1981VEI 1Teramati1981-03-16 – 1981-05-16
- 1980VEI 1Teramati1980-09-12 – 1980-09-12
- 1980VEI 1Teramati1980-12-26 – 1980-12-26
- 1979VEI 1Teramati1979-09-08 – 1980-01-16
- 1978VEI 1Teramati1978-09-22 – 1978-12-16
- 1977VEI 1Teramati1977-05-16 – 1977-07-16
- 1977VEI 2Teramati1977-12-18 – 1978-06-15
- 1976VEI 2Teramati1976-06-21 – 1976-11-16
- 1974VEI 2Teramati1974-09-11 – 1975-02-16
- 1972VEI 2Teramati1972-02-09 – 1973-09-08
- 1970VEI 1Teramati1970-07-16 – akhir tidak diketahui
- 1969VEI 2Teramati1969-05-03 – 1969-06-03
- 1968VEI 1Teramati1968-07-02 – akhir tidak diketahui
- 1967VEI 1Teramati1967-01-01 – akhir tidak diketahui
- 1964VEI 2Teramati1964-12-25 – 1965-03-16
- 1963VEI 2Teramati1963-05-23 – 1963-07-02
- 1958VEI 2Teramati1958-07-02 – 1961-07-03
- 1952VEI 2Teramati1952-03-23 – 1957-12-25
- 1948VEI 1Teramati1948-07-02 – 1951-07-02
- 1946VEI 1Teramati1946-11-04 – akhir tidak diketahui
- 1941VEI 1Teramati1941-07-02 – 1946-07-02
- 1932VEI 1Teramati1932-07-02 – 1934-07-02
- 1929VEI 1Teramati1929-07-02 – akhir tidak diketahui
- 1925VEI 1Teramati1925-07-02 – akhir tidak diketahui
- 1916VEI 2Teramati1916-07-02 – akhir tidak diketahui
- 1914VEI 2Teramati1914-05-30 – akhir tidak diketahui
- 1914VEI 2Teramati1914-10-08 – 1915-05-15
- 1910VEI 2Teramati1910-01-25 – 1910-02-16
- 1910VEI 1Teramati1910-09-12 – 1910-10-14
- 1898VEI 1Teramati1898-12-29 – 1907-12-31
- 1895VEI 1Teramati1895-07-02 – akhir tidak diketahui
- 1888VEI 1Teramati1888-01-16 – 1891-07-02
- 1880VEI 1Teramati1880-07-02 – akhir tidak diketahui
- 1879VEI 1Metode tidak dinyatakan1879-07-02 – akhir tidak diketahui
- 1860VEI 1Teramati1860-07-02 – akhir tidak diketahui
- 1838VEI 2Metode tidak dinyatakan1838-07-02 – akhir tidak diketahui
- 1834VEI 2Teramati1834-07-02 – akhir tidak diketahui
- 1828VEI 1Teramati1828-07-02 – akhir tidak diketahui
- 1747VEI 2Teramati1747 – akhir tidak diketahui
- 1280VEI ?Perkiraan geologi1280 – akhir tidak diketahuiNorth flank (Bosque Alegre)
- 210VEI ?Perkiraan geologi210 – akhir tidak diketahuiNorth flank (Bosque Alegre)
- 760 SM (±200 tahun)VEI ?Perkiraan geologi760 SM – akhir tidak diketahuiNorth flank (Bosque Alegre)
- 3950 SMVEI ?Perkiraan geologi3950 SM – akhir tidak diketahuiNorth flank (Cerro Congo)
- 5590 SM (±100 tahun)VEI ?Perkiraan geologi5590 SM – akhir tidak diketahuiBotos Cone
- 7620 SM (±100 tahun)VEI ?Perkiraan geologi7620 SM – akhir tidak diketahui
- 7920 SM (±75 tahun)VEI ?Perkiraan geologi7920 SM – akhir tidak diketahui
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