2 spots left on Iceland Geo Tour 16-30 July 2022

Irazu volcano

Updated: Jul 3, 2022 18:07 GMT - Refresh
Stratovolcano 3432 m / 11,260 ft
Costa Rica, 9.98°N / -83.85°W
Current status: normal or dormant (1 out of 5)
Last update: 22 Dec 2021 (Smithsonian / USGS Weekly Volcanic Activity Report)

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.

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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
Lastest nearby earthquakes:
TimeMag. / DepthDistance/Location
Thursday, June 30, 2022 GMT (1 quake)
Jun 29, 2022 8:23 pm (GMT -6) (Jun 30, 2022 02:23 GMT)
2.7

54 km
35 km (22 mi)
3.2 km west of San Jose, San José, Costa Rica
Sunday, June 26, 2022 GMT (1 quake)
Jun 26, 2022 3:49 am (GMT -6) (Jun 26, 2022 09:49 GMT)
2.5

12 km
45 km (28 mi)
Costa Rica: 15 Km Al Este De Tres Equis, Turrialba.
Saturday, June 25, 2022 GMT (1 quake)
Jun 25, 2022 6:27 am (GMT -6) (Jun 25, 2022 12:27 GMT)
2.4

11 km
21 km (13 mi)
Costa Rica: 2 Km Al Noroeste De Santa Teresita, Turrialba.
Friday, June 24, 2022 GMT (1 quake)
Jun 23, 2022 11:25 pm (GMT -6) (Jun 24, 2022 05:25 GMT)
2.9

6 km
89 km (55 mi)
Costa Rica: 1 Km Al Oeste De Limon.

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)
 



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