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News
Irazu volcano (Costa Rica) activity update
Sunday, Sep 09, 2012
Minor rockfalls were reported from Irazú´s main crater walls following the magnitude 7.6 earthquake on 5 Sep. [more]
 

Irazu volcano

Stratovolcano 3432 m / 11,260 ft
Costa Rica, 9.98°N / -83.85°W
Current status: normal or dormant (1 out of 5)
Irazu webcams / live data | Reports
Irazu volcano books | Tours
Last update: 4 Jun 2016
Typical eruption style: Explosive.
Irazu volcano eruptions: 1726, 1775(?), 1821(?), 1822, 1823, 1826(?), 1842, 1844(?), 1847, 1864, 1875, 1882(?), 1909(?), 1914(?), 1917-21, 1924, 1928, 1930, 1933, 1939-40, 1963-65, 1977, 1994
TimeMag. / DepthDistanceLocation
Fri, 18 Oct 2019
Fri, 18 Oct 06:14 UTCM 3.3 / 7 km24 km3 km al Sur de Tobosi, El Guarco. (Costa Rica)
Fri, 18 Oct 04:59 UTCM 2.5 / 9 km21 km3 km al Sur de Cachi, Paraiso, Cartago. (Costa Rica)
Thu, 17 Oct 2019
Thu, 17 Oct 18:14 UTCM 3.3 / 7 km24 kmCosta Rica
Sun, 13 Oct 2019
Sun, 13 Oct 01:18 UTCM 2.7 / 10 km21 km4 km al Sur de Cachi, Paraiso, Cartago. (Costa Rica)
Sat, 12 Oct 2019
Sat, 12 Oct 07:08 UTCM 2.7 / 6 km26 km2 km al Norte de San Cristobal, Desamparados. (Costa Rica)
View all recent quakes
Irazú (3432 m) immediately east of the capital San José is Costa Rica's highest and one of its most active volcanoes. Tephra fall (ash) during the last major eruption of Irazú in 1963-65 caused heavy damage to infrastructure and life in San José and its surroundings.

Background:

Irazú is a massive stratovolcano covering more than 500 sq km with at least 10 flank cones on the southern flank, all being older than at least 14,000 years when a massive lava flow (the "Ceravantes" flow) was erupted.
All known eruptions from Irazú during the past 10,000 years have been explosive and originated from the summit craters that show a migration to the W over time. The historically active crater contains a small acid lake of changing size and color.
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Source: GVP, Smithsonian Institution

Irazu Photos:

The lake-filled crater of Irazu volcano, Costa Rica (Photo: Tom Pfeiffer)
The lake-filled crater of Irazu volcano, Costa Rica (Photo: Tom Pfeiffer)
Crater El Piroclastico of Irazu Volcano near Cartago, Costa Rica (Photo: WNomad)
Crater El Piroclastico of Irazu Volcano near Cartago, Costa Rica (Photo: WNomad)
Crater Principal of Irazu Volcano, near Cartago, Costa Rica (Photo: WNomad)
Crater Principal of Irazu Volcano, near Cartago, Costa Rica (Photo: WNomad)
Laguna del Irazu Volcano, Costa Rica (Photo: WNomad)
Laguna del Irazu Volcano, Costa Rica (Photo: WNomad)
National Park of Irazu Volcano, Costa Rica (Photo: WNomad)
National Park of Irazu Volcano, Costa Rica (Photo: WNomad)
Playa Hermosa of Irazu Volcano, Costa Rica (Photo: WNomad)
Playa Hermosa of Irazu Volcano, Costa Rica (Photo: WNomad)



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