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Tungurahua volcano (Ecuador) - Smithsonian / USGS Weekly Volcanic Activity Report for 23 October-29 October 2013 (New Activity / Unrest)

Wed, 23 Oct 2013, 06:00
06:00 AM | BY: VN
IG reported that activity at Tungurahua remained high during 23-27 October. Although cloud cover sometimes prevented visual observations of the crater, ash plumes were observed almost daily. During 23-24 October continuous ash emissions produced plumes that rose 3-4 km above the crater and drifted NNE and SW.
Ashfall was reported in Penipe (15 km SW), Palitahua (S), Riobamba (30 km S), Tisaleo (29 km NW), El Manzano (8 km SW), and Choglontus (SW). On 25 October blocks were observed rolling down the flanks, and ash fell in El Manzano and Choglontus. The next day continuous ash emissions rose 2 km and drifted SW.
Ashfall was noted in Cevallos (23 km NW), Mocha (25 km WNW), Tisaleo, Penipe, El Manzano, and Cloglontus. Ash plumes rose 2 km and drifted W on 27 October. Low-energy gas-and-ash emissions drifted W and SW on 28 October.
Ashfall was reported in Palitahua. On 29 October ash plumes rose 4 km and drifted E and NE. Ash fell in Penipe, Mocha, and El Manzano.

Source: Instituto Geofísico-Escuela Politécnica Nacional (IG)
From: Global Volcanism Program, 2013. Report on Tungurahua. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 23 October-29 October 2013. Smithsonian Institution and US Geological Survey.

Previous news

Sat, 19 Oct 2013, 06:51
Small pyroclastic flow on the upper slope on 15 Oct (image: Pat. Mothes, IGPEN)
The eruptive phase that had started on 6 Oct, after a quiet interval of 3 months, continues to increase. The volcano observatory reports ash columns rising up to 3 km above the crater and the first occurrence (so far) small pyroclastic flows. ... Read all
Thu, 17 Oct 2013, 10:55
Activity has been constant and slowly increasing. Strombolian explosions produce a column of gas and ash rising about 1 km, mostly driting west and north. Light ash fall has been reported from Penipe and Choglontus, and to the north, in Runtún. Near the volcano, constant rumbling is heard. ... Read all
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