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Ubinas Volcano

Updated: Jul 23, 2024 11:01 GMT -
Stratovolcano 5672 m (18,609 ft)
Peru, -16.36°S / -70.9°W
Current status: minor activity or eruption warning (3 out of 5)
Last update: 19 Jun 2024 (Smithsonian / USGS Weekly Volcanic Activity Report)

Ubinas is Peru's most active volcano. A small, 1.4-km-wide caldera cuts the top of the volcano. The steep-walled, 150-m-deep summit caldera contains an ash cone with a 500-m-wide and 200 m deep crater Debris-avalanche deposits from the collapse of the SE flank of Ubinas about 3700 years ago extend 10 km from the volcano. Widespread plinian pumice-fall deposits from Ubinas include one of Holocene age about 1000 years ago. Holocene lava flows are visible on the volcano's flanks, but historical activity, documented since the 16th century, has consisted of intermittent minor-to-moderate explosive eruptions.
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Source: abbreviated from Global Volcanism Program information on Ubinas

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Typical eruption style: Explosive
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

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Wed, 19 Jun 2024, 14:00

Ubinas volcano () - Smithsonian / USGS Weekly Volcanic Activity Report for 12 June-18 June 2024 (Continuing Activity)

Instituto Geofísico del Perú (IGP) reported that during 1-15 June seismicity at Ubinas was characterized by daily averages of 144 events associated with rock fracturing and 73 events associated with fluid movement. Gas, steam, and ash emissions were sometimes visible rising as high as 800 m above the crater rim and drifting mainly E and NE, though ash was not present in the emissions at least during 12-15 June. Sulfur dioxide emissions were minor, averaging 74 tons per day. ... Read all
Thu, 13 Jun 2024, 10:00

Ubinas volcano () - Smithsonian / USGS Weekly Volcanic Activity Report for 12 June-18 June 2024 (Continuing Activity)

Instituto Geofísico del Perú (IGP) reported that during 1-15 June seismicity at Ubinas was characterized by daily averages of 144 events associated with rock fracturing and 73 events associated with fluid movement. Gas, steam, and ash emissions were sometimes visible rising as high as 800 m above the crater rim and drifting mainly E and NE, though ash was not present in the emissions at least during 12-15 June. Sulfur dioxide emissions were minor, averaging 74 tons per day. ... Read all

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