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Irazu ηφαίστειο

Τελευταία ανανενώση: 10 Δεκεμβρίου 2022 05:51 GMT -
Stratovolcano 3432 m / 11,260 ft
Κόστα Ρίκα, 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.

Διαδραστικός χάρτης
Typical eruption style: Explosive.
Irazu ηφαίστειο εκρήξεις: 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

ΏραMag. / ΒάθοςΑπόσταση/Τοποθεσία
Παρασκευή, 9 Δεκεμβρίου 2022 GMT (1 σεισμός)
8 Δεκ 2022 19:08 (GMT -6) (9 Δεκ 2022 01:08 GMT)
3.5

84 km
36 km (22 mi)
Provincia de Heredia, 24 km βόρεια από Σαν Χοσέ, Κόστα Ρίκα
Δευτέρα, 5 Δεκεμβρίου 2022 GMT (1 σεισμός)
4 Δεκ 2022 21:41 (GMT -6) (5 Δεκ 2022 03:41 GMT)
3.0

71 km
42 km (26 mi)
Provincia de Heredia, 32 km βόρεια από Σαν Χοσέ, Κόστα Ρίκα
Παρασκευή, 9 Δεκεμβρίου 2022 GMT (1 σεισμός)
8 Δεκ 2022 19:08 (GMT -6) (9 Δεκ 2022 01:08 GMT)
3.5

84 km
36 km (22 mi)
Provincia de Heredia, 24 km βόρεια από Σαν Χοσέ, Κόστα Ρίκα
Δευτέρα, 5 Δεκεμβρίου 2022 GMT (1 σεισμός)
4 Δεκ 2022 21:41 (GMT -6) (5 Δεκ 2022 03:41 GMT)
3.0

71 km
42 km (26 mi)
Provincia de Heredia, 32 km βόρεια από Σαν Χοσέ, Κόστα Ρίκα

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 Φωτογραφίες




See also: Sentinel hub | Landsat 8 | NASA FIRMS
Wed, 4 Nov 2020, 06:00

Irazu volcano (Costa Rica) - Smithsonian / USGS Weekly Volcanic Activity Report for 4 November-10 November 2020 (Continuing Activity)

OVSICORI-UNA reported that Irazú's seismic network recorded a significant landslide in the W part of the volcano on 4 November along with a lahar. A small thermal anomaly was detected in MODIS (Moderate Resolution Imaging Spectroradiometer) satellite data. ... Read all
Wed, 26 Aug 2020, 06:00

Irazu volcano (Costa Rica) - Smithsonian / USGS Weekly Volcanic Activity Report for 26 August-1 September 2020 (Continuing Activity)

OVSICORI-UNA reported that Irazú's seismic network recorded land movement 1.2 km SW of the SW crater rim in a high area used for radio and television antennas. Landslides in the area had been observed since 2014, but activity accelerated in the previous months. The number of events indicating landslides began to exponentially increase particularly after 20 August. ... Read all
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