Cotopaxi volcano update: Intermittent weak ash emissions
Sat, 6 Feb 2016, 11:23 | BY: T
On 29 January IG reported that in recent weeks superficial activity at Cotopaxi was characterized by minor steam emissions from the crater and sporadic gas emissions with minor amounts of ash. Sulfur dioxide emissions were less than 1,000 tons per day (pre-eruptive levels) and seismicity had almost returned to baseline levels. At 1843 on 24 January a plume with low-to-moderate levels of ash rose 700 m above the crater and drifted W. The emission coincided with a hybrid earthquake.
(Smithsonian / USGS Weekly Volcanic Activity Report 27 January-2 February 2016)
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Wed, 27 Jan 2016, 06:00
Cotopaxi volcano (Ecuador) - Smithsonian / USGS Weekly Volcanic Activity Report for 27 January-2 February 2016 (Continuing Activity)
On 29 January IG reported that in recent weeks surficial activity at Cotopaxi was characterized by minor steam emissions from the crater and sporadic gas emissions with minor amounts of ash. Sulfur dioxide emissions were less than 1,000 tons per day (pre-eruptive levels) and seismicity had almost returned to baseline levels. At 1843 on 24 January a plume with low-to-moderate levels of ash rose 700 m above the crater and drifted W. ... Read all
Wed, 13 Jan 2016, 06:00
Cotopaxi volcano (Ecuador) - Smithsonian / USGS Weekly Volcanic Activity Report for 13 January-19 January 2016 (Continuing Activity)
IG reported that at 1336 on 13 January a seismic station on Cotopaxi's W flank recorded an hour-long signal caused by a lahar. Preliminary results indicated that the peak flow rate was around 40 m3/s with a volume of about 50,000 m3; the lahar was the largest recorded at the volcano since the current eruption began. Lahars also descended the Agualongo River, leaving deposits on the bridge that crosses the river. ... Read all
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