Costa Rica · Stratovulcano
Poás
Poas
- Tipo
- Stratovulcano
- Altitudine
- 2697 m
- Ultima eruzione
- 2026
- Tipo
- Stratovulcano
- Paese
- Costa Rica
- Regione
- America Centrale e Caraibi / Central America Volcanic Arc
- Altitudine
- 2697 m
- Coordinate
- 10.200, -84.233
- Ultima eruzione
- 2026
- Contesto tettonico
- Zona di subduzione / Crosta continentale (> 25 km)
- Forma vulcanica
- Composito
- Roccia principale
- Andesite / Andesite basaltica
Sintesi geologica
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.
Sintesi da Wikipedia
Riassunto in ingleseThe 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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Storia delle eruzioni
65 registrateGlossarioCronologia dettagliata
- 2025VEI 2Osservata2025-01-05 – 2026-03-16
- 2023VEI 1Osservata2023-08-02 – 2023-08-11
- 2023VEI 1Osservata2023-12-01 – 2024-05-05
- 2022VEI 1Osservata2022-04-06 – 2022-04-06Crater lake - Fumarola Naranja
- 2019VEI 2Osservata2019-02-07 – 2019-09-30Caliente Summit Crater
- 2018VEI ?Osservata2018-05-25 – 2018-05-25Summit crater
- 2017VEI 1Osservata2017-04-12 – 2017-11-06Laguna Caliente Crater
- 2016VEI 1Osservata2016-06-05 – 2016-08-16Lake in summit crater
- 2009VEI 1Osservata2009-01-12 – 2009-03-21
- 2009VEI 1Osservata2009-11-16 – 2014-10-13
- 2008VEI 1Osservata2008-01-13 – 2008-01-13
- 2006VEI 1Osservata2006-03-24 – 2006-03-24
- 2006VEI 1Osservata2006-09-25 – 2006-12-16
- 1996VEI 1Osservata1996-04-08 – 1996-04-08
- 1994VEI 2Osservata1994-03-16 – 1994-10-16
- 1992VEI 1Osservata1992-02-16 – 1992-03-16
- 1992VEI 0Osservata1992-10-16 – 1993-09-16
- 1991VEI 1Osservata1991-03-06 – 1991-09-16
- 1987VEI 2Osservata1987-06-16 – 1990-06-16
- 1981VEI 1Osservata1981-03-16 – 1981-05-16
- 1980VEI 1Osservata1980-09-12 – 1980-09-12
- 1980VEI 1Osservata1980-12-26 – 1980-12-26
- 1979VEI 1Osservata1979-09-08 – 1980-01-16
- 1978VEI 1Osservata1978-09-22 – 1978-12-16
- 1977VEI 1Osservata1977-05-16 – 1977-07-16
- 1977VEI 2Osservata1977-12-18 – 1978-06-15
- 1976VEI 2Osservata1976-06-21 – 1976-11-16
- 1974VEI 2Osservata1974-09-11 – 1975-02-16
- 1972VEI 2Osservata1972-02-09 – 1973-09-08
- 1970VEI 1Osservata1970-07-16 – fine sconosciuta
- 1969VEI 2Osservata1969-05-03 – 1969-06-03
- 1968VEI 1Osservata1968-07-02 – fine sconosciuta
- 1967VEI 1Osservata1967-01-01 – fine sconosciuta
- 1964VEI 2Osservata1964-12-25 – 1965-03-16
- 1963VEI 2Osservata1963-05-23 – 1963-07-02
- 1958VEI 2Osservata1958-07-02 – 1961-07-03
- 1952VEI 2Osservata1952-03-23 – 1957-12-25
- 1948VEI 1Osservata1948-07-02 – 1951-07-02
- 1946VEI 1Osservata1946-11-04 – fine sconosciuta
- 1941VEI 1Osservata1941-07-02 – 1946-07-02
- 1932VEI 1Osservata1932-07-02 – 1934-07-02
- 1929VEI 1Osservata1929-07-02 – fine sconosciuta
- 1925VEI 1Osservata1925-07-02 – fine sconosciuta
- 1916VEI 2Osservata1916-07-02 – fine sconosciuta
- 1914VEI 2Osservata1914-05-30 – fine sconosciuta
- 1914VEI 2Osservata1914-10-08 – 1915-05-15
- 1910VEI 2Osservata1910-01-25 – 1910-02-16
- 1910VEI 1Osservata1910-09-12 – 1910-10-14
- 1898VEI 1Osservata1898-12-29 – 1907-12-31
- 1895VEI 1Osservata1895-07-02 – fine sconosciuta
- 1888VEI 1Osservata1888-01-16 – 1891-07-02
- 1880VEI 1Osservata1880-07-02 – fine sconosciuta
- 1879VEI 1Metodo non indicato1879-07-02 – fine sconosciuta
- 1860VEI 1Osservata1860-07-02 – fine sconosciuta
- 1838VEI 2Metodo non indicato1838-07-02 – fine sconosciuta
- 1834VEI 2Osservata1834-07-02 – fine sconosciuta
- 1828VEI 1Osservata1828-07-02 – fine sconosciuta
- 1747VEI 2Osservata1747 – fine sconosciuta
- 1280VEI ?Stima geologica1280 – fine sconosciutaNorth flank (Bosque Alegre)
- 210VEI ?Stima geologica210 – fine sconosciutaNorth flank (Bosque Alegre)
- 760 a.C. (±200 anni)VEI ?Stima geologica760 a.C. – fine sconosciutaNorth flank (Bosque Alegre)
- 3950 a.C.VEI ?Stima geologica3950 a.C. – fine sconosciutaNorth flank (Cerro Congo)
- 5590 a.C. (±100 anni)VEI ?Stima geologica5590 a.C. – fine sconosciutaBotos Cone
- 7620 a.C. (±100 anni)VEI ?Stima geologica7620 a.C. – fine sconosciuta
- 7920 a.C. (±75 anni)VEI ?Stima geologica7920 a.C. – fine sconosciuta
Vulcani nelle vicinanze
Link esterni
⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.