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Poas Vulkan

Aktualisiert: 25. Sep. 2022 16:00 GMT -
Stratovolcano 2708 m (8,884 ft)
Costa Rica, 10.2°N / -84.23°W
Aktueller Status: normal / ruhend (1 von 5)
Last update: 14 Sep 2022 (Smithsonian / USGS Weekly Volcanic Activity Report)

Poás is one of Costa Rica´s most active volcanoes, and one of its most frequently visited and prominent ones. It contains a green acid crater lake and during some of its frequent phreatic eruptions, water from the lake is ejected like a geyser.

Interaktive Karte anzeigen
Typische Aktivität: Phreatic eruptions, sometimes geyser-like ejections of water from the acid crater lake.
Ausbrüche des Poas: 1828, 1834, 1838(?), 1860, 1879(?), 1880, 1888-91, 1895, 1898-1907, 1910, 1910, 1914, 1914-15, 1925, 1929, 1941-46, 1948-51, 1952-57, 1958-61, 1963, 1964-65, 1967, 1969, 1970, 1972-73, 1974-75, 1976, 1977, 1977-78, 1978, 1979-80, 1980, 1981, 1987-90, 1991, 1992, 1992-93, 1994, 1996, 2010, 2011, 2012, 2013, 2014, 2016, 2017

Letzte Erdbeben in der Nähe

UhrzeitMag. / TiefeEntfernung/Ort
Donnerstag, 22. September 2022 GMT (1 Beben)
22. Sep. 2022 09:37 (GMT -6) (22. Sep. 2022 15:37 GMT)
3.1

80 km
13 km (8.1 mi)
Zarcero, 25 km nordwestlich von Alajuela, Costa Rica
Mittwoch, 21. September 2022 GMT (1 Beben)
21. Sep. 2022 06:18 (GMT -6) (21. Sep. 2022 12:18 GMT)
2.9

66 km
24 km (15 mi)
Provincia de Alajuela, 46 km nordwestlich von San Jose, San José, Costa Rica
Sonntag, 18. September 2022 GMT (1 Beben)
18. Sep. 2022 03:20 (GMT -6) (18. Sep. 2022 09:20 GMT)
2.8

3 km
56 km (35 mi)
18 km nordöstlich von Cartago, Costa Rica
Samstag, 17. September 2022 GMT (1 Beben)
17. Sep. 2022 10:27 (GMT -6) (17. Sep. 2022 16:27 GMT)
3.0

6 km
18 km (11 mi)
Provincia de Heredia, 21 km nördlich von San Jose, San José, Costa Rica

Beschreibung

The broad, well-vegetated edifice of Poás has three craters in a N-S line. The 2708-m-high basaltic-to-dacitic complex stratovolcano is cut by a N-S-trending fissure that extends to the lower northern flank, where a parasite volcano (the Congo stratovolcano) and several explosion craters, or maars, most of them lake-filled, have been created.
Poás has two summit crater lakes. The southermost one, Botos, is cold, clear has not eruptied for about 7500 years. The other crater lake is geothermally heated and -after Kawah Ijen in Indonesia - is probably the world's second most acidic natural lake. Its pH is near zero.
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Source: GVP, Smithsonian Institution

Poas Fotos




See also: Sentinel hub | Landsat 8 | NASA FIRMS

Mi, 14. Sep 2022, 14:00

Poas volcano (Costa Rica) - Smithsonian / USGS Weekly Volcanic Activity Report for 7 September-13 September 2022 (Continuing Activity)

On 9 September OVSICORI-UNA reported that activity at Poás had increased since mid-August, characterized by notably increased seismicity. Seismic signals consisted of tremors with variable amplitudes and durations, prolonged harmonic tremors, and some long-period earthquakes with magnitudes greater than those recorded during 2022; there was no increase in low-frequency earthquakes. The energy of the seismicity had also dramatically increased in the previous few days. ... Read all
Do, 8. Sep 2022, 10:00

Poas volcano (Costa Rica) - Smithsonian / USGS Weekly Volcanic Activity Report for 7 September-13 September 2022 (Continuing Activity)

On 9 September OVSICORI-UNA reported that activity at Poás had increased since mid-August, characterized by notably increased seismicity. Seismic signals consisted of tremors with variable amplitudes and durations, prolonged harmonic tremors, and some long-period earthquakes with magnitudes greater than those recorded during 2022; there was no increase in low-frequency earthquakes. The energy of the seismicity had also dramatically increased in the previous few days. ... Read all
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