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Ubinas volcano (Peru): SE flank collapse warning

Thu, 20 Jan 2022, 01:55
01:55 AM | BY: MARTIN
Aerial view into the Ubinas's crater (left) and the southeastern slope of the volcano (right) (image: La Republica)
Aerial view into the Ubinas's crater (left) and the southeastern slope of the volcano (right) (image: La Republica)
The Instituto Geofísico del Perú alerted about a possible collapse of the southeastern flank at the volcano.
The reason for this alert is the possible destabilization of the 1.2 and 1.4 km high crater walls.
Producing such a collapse would turn into a landslide, in the worst-case scenario into a culminated pyroclastic flow racing down Ubinas valley through Volcamayo creek threatening the nearby population of Querapi, Ubinas, Tonohaya and San Miguel.
The collapse could occur if heavy rainfalls remobilize large pyroclastic deposits or in case of an eruption.
The current crater volume is about 2 640 000 cubic meters.
Source: Instituto Geofísico del Perú volcano activity update 19 January 2022

Previous news

Wed, 31 Mar 2021, 06:00

Ubinas volcano (Peru) - Smithsonian / USGS Weekly Volcanic Activity Report for 31 March-6 April 2021 (Continuing Activity)

Instituto Geofísico del Perú (IGP) reported that during 29 March-4 April there were 11 volcano-tectonic earthquakes at Ubinas with magnitudes less than 1.8, and a few seismic signals indicated emissions. Sporadic steam-and-gas plumes rose as high as 200 m above the crater rim. On 5 April the Alert Level was lowered to Green (the lowest level on a four-color scale). ... Read all
Mon, 4 Jan 2021, 11:11

Ubinas volcano (Peru): moderate lahars

Lahars from Ubinas volcano (image: IGP)
On 1 January at about 18:00 local time IGP seismic instruments recorded a moderate lahars (mud flows) which traveled downslope in SE Volcanmayo direction located 2 km away from Ubinas town as heavy rainfalls remobilised the fresh ash deposits as can be seen in the attached video below. ... Read all
Show more
Ubinas volcano
Stratovolcano 5672 m (18,609 ft)
Peru, -16.36°S / -70.9°W
Current status: normal or dormant (1 out of 5) Ubinas volcano eruptions:
2014-16, 2009-2010, 2006-08, 1969, 1956, 1951, 1937, 1907, 1906, 1869, 1867, 1865, 1862, 1830, 1826(?), 1784, 1677, 1662, 1600, 1550 ± 50y
Typical eruption style
Explosive
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