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)
Last update: 29 Feb 2020

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

Latest nearby earthquakes

TimeMag. / DepthDistance/Location
Wed, 23 Jun 2021 (GMT) (1 earthquake)
22 de junio del 2021 7:42 pm (23 Jun 2021 01:42:00 GMT)
2.4

8 km
27 km (17 mi)
El Guarco, 12 km south of Paraiso, Provincia de Cartago, Costa Rica
Sat, 19 Jun 2021 (GMT) (2 earthquakes)
19 de junio del 2021 11:55 am (19 Jun 2021 17:55:00 GMT)
2.7

7 km
20 km (12 mi)
El Guarco, Provincia de Cartago, 20 km southeast of San Jose, Costa Rica
19 de junio del 2021 11:06 am (19 Jun 2021 17:06:00 GMT)
3.5

5 km
20 km (12 mi)
El Guarco, Provincia de Cartago, 20 km southeast of San Jose, Costa Rica
Mon, 14 Jun 2021 (GMT) (1 earthquake)
13 de junio del 2021 11:34 pm (14 Jun 2021 05:34:00 GMT)
2.8

74 km
29 km (18 mi)
2.7 km west of San Jose, San José, Costa Rica
Sun, 13 Jun 2021 (GMT) (1 earthquake)
12 de junio del 2021 7:24 pm (13 Jun 2021 01:24:00 GMT)
2.8

28 km
46 km (29 mi)
Dota, 38 km south of San Jose, San José, Costa Rica

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)
 



See also: Sentinel hub | Landsat 8
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