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Poas: eruption history
Elevation2,697 m
TypeStratovolcano
Confirmed eruptions63#1 of 10 in country
Latest eruption2025-01-05
Largest VEI2
Location10.20, -84.23
Eruptions per century (since 1500)
0
0
1
7
35
13
By VEI
1
35
19
Eruptions (latest first, up to 60)
| Start | VEI | End | Area |
|---|---|---|---|
| 2025-01-05 | 2 | 2026 | |
| 2023-12-01 | 1 | 2024 | |
| 2023-08-02 | 1 | 2023 | |
| 2022-04-06 | 1 | 2022 | Crater lake - Fumarola Naranja |
| 2019-02-07 | 2 | 2019 | Caliente Summit Crater |
| 2018-05-25 | – | 2018 | Summit crater |
| 2017-04-12 | 1 | 2017 | Laguna Caliente Crater |
| 2016-06-05 | 1 | 2016 | Lake in summit crater |
| 2009-11-16 | 1 | 2014 | |
| 2009-01-12 | 1 | 2009 | |
| 2008-01-13 | 1 | 2008 | |
| 2006-09-25 | 1 | 2006 | |
| 2006-03-24 | 1 | 2006 | |
| 1996-04-08 | 1 | 1996 | |
| 1994-03-16 | 2 | 1994 | |
| 1992-10-16 | 0 | 1993 | |
| 1992-02-16 | 1 | 1992 | |
| 1991-03-06 | 1 | 1991 | |
| 1987-06-16 | 2 | 1990 | |
| 1981-03-16 | 1 | 1981 | |
| 1980-12-26 | 1 | 1980 | |
| 1980-09-12 | 1 | 1980 | |
| 1979-09-08 | 1 | 1980 | |
| 1978-09-22 | 1 | 1978 | |
| 1977-12-18 | 2 | 1978 | |
| 1977-05-16 | 1 | 1977 | |
| 1976-06-21 | 2 | 1976 | |
| 1974-09-11 | 2 | 1975 | |
| 1972-02-09 | 2 | 1973 | |
| 1970-07-16 | 1 | – | |
| 1969-05-03 | 2 | 1969 | |
| 1968-07-02 | 1 | – | |
| 1967-01-01 | 1 | – | |
| 1964-12-25 | 2 | 1965 | |
| 1963-05-23 | 2 | 1963 | |
| 1958-07-02 | 2 | 1961 | |
| 1952-03-23 | 2 | 1957 | |
| 1948-07-02 | 1 | 1951 | |
| 1946-11-04 | 1 | – | |
| 1941-07-02 | 1 | 1946 | |
| 1932-07-02 | 1 | 1934 | |
| 1929-07-02 | 1 | – | |
| 1925-07-02 | 1 | – | |
| 1916-07-02 | 2 | – | |
| 1914-10-08 | 2 | 1915 | |
| 1914-05-30 | 2 | – | |
| 1910-09-12 | 1 | 1910 | |
| 1910-01-25 | 2 | 1910 | |
| 1898-12-29 | 1 | 1907 | |
| 1895-07-02 | 1 | – | |
| 1888-01-16 | 1 | 1891 | |
| 1880-07-02 | 1 | – | |
| 1860-07-02 | 1 | – | |
| 1834-07-02 | 2 | – | |
| 1828-07-02 | 1 | – | |
| 1747 | 2 | – | |
| 1280 | – | – | North flank (Bosque Alegre) |
| 210 | – | – | North flank (Bosque Alegre) |
| 760 BCE | – | – | North flank (Bosque Alegre) |
| 3950 BCE | – | – | North flank (Cerro Congo) |
Nearby volcanoes
| Volcano | Distance | Eruptions |
|---|---|---|
| Barva | 16 km | 1 |
| Platanar | 18 km | 0 |
| Irazu | 48 km | 24 |
| Turrialba | 55 km | 21 |
| Arenal | 59 km | 27 |
| Tenorio | 100 km | 0 |
| Miravalles | 118 km | 2 |
| Rincon de la Vieja | 140 km | 30 |
Eruption records from the Smithsonian Global Volcanism Program; older eruptions may be missing. VEI = Volcanic Explosivity Index (0–8). For current alerts, check the official agency.