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Cotopaxi volcano (Ecuador): strong degassing continues, risk of impending explosion remains high

Thu, 24 Nov 2022, 04:22
04:22 AM | BY: MARTIN
Degassing activity visible during overflight on 20 Nov (image: IGEPN)
Degassing activity visible during overflight on 20 Nov (image: IGEPN)
The InSAR image shows deflation (blue) on the western flanks of Cotopaxi volcano (image: IGEPN)
The InSAR image shows deflation (blue) on the western flanks of Cotopaxi volcano (image: IGEPN)
Since the explosive eruption occurred at the volcano on 21 October, a strong constant degassing continues to be active from the summit vent.
Surveillance cameras located on the Sincholagua (northeast) and Rumiñahui (northwest) volcanoes observed gas and steam plumes that have been rising 2 km above the crater.
Although, the activity is still characterized as low-leveled.
Ground deformation data follow the pattern of deflation (subsidence) on the western slopes rather than inflation (uplift), portrayed as blue in the attached InSAR image.
Crater temperatures depict similar values to those after the 2015 eruption. The maximum recorded temperatures reached about 98 °C, however, are underestimated due to an abundant presence of gases and vapor.
Thus, a risk of an impending eruption remains high as a certain rate of uncertainty prevails in monitoring data and volcano behavior so far.
Source: Instituto Geofísico volcano activity update 24 November 2022

Previous news

Wed, 2 Nov 2022, 15:00

Cotopaxi volcano (Ecuador) - Smithsonian / USGS Weekly Volcanic Activity Report for 26 October-1 November 2022 (New Activity / Unrest)

IG issued a report that included data analysis and additional information about the minor eruptive activity at Cotopaxi recorded during 21-22 October. The eruption began with a high-frequency earthquake recorded at 1944 on 21 October and was followed by an episode of volcanic tremor from 1950 on 21 October to 0040 on 22 October. A diffuse gas-and-ash cloud rose 1.7-2.3 km above the summit and drifted NE. ... Read all
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Cotopaxi volcano
stratovolcano 5911 m / 19,393 ft
Ecuador, -0.68°S / -78.44°W
Current status: minor activity or eruption warning (3 out of 5) Cotopaxi volcano eruptions:
2015-16, 1942(?), 1940, 1939(?), 1931(?), 1928-30(?), 1905-08, 1903, 1895, 1886, 1885, 1883?, 1883, 1882, 1880, 1879, 1878, 1877, 1870-76, 1870, 1869, 1868, 1867, 1866, 1863, 1860-62, 1859, 1858, 1857, 1856, 1856, 1855, 1854, 1853, 1852, 1851, 1850, 1845, 1844, 1803, 1768, 1766, 1750, 1747-49, 1746, 1744, 1743, 1743, 1742, 1742, 1740-41, 1738, 1698, 1534, 1533, 1532, 1400, 1260, 1130, 950, 770, 760, 740, 550, 370, 180, 140, 110, 70, 80 BC, 230 BC, 1510 BC, 2220 BC, 2640 BC
Typical eruption style
explosive
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