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Reventador volcano (Ecuador) - Smithsonian / USGS Weekly Volcanic Activity Report for 18 August-24 August 2021 (Continuing Activity)

Ср, 18 авг 2021, 06:00
06:00 AM | ПЇЅПЇЅПЇЅПЇЅПЇЅ: VN
IG reported that several ash emissions from Reventador during 18-24 August rose 500-1,400 m above the summit and drifted NW, W, SW, and S; sometimes weather conditions prevented visual confirmation. Seismicity was characterized by daily explosions, harmonic tremor, long-period earthquakes, and signals that indicated emissions. The Washington VAAC reported gas-and-steam and ash plumes to 1.4 km above the summit that drifted W, NW, and SW, often observed multiple times per day in satellite imagery or webcams.
Nighttime crater incandescence was frequently observed, accompanied by incandescent blocks rolling down the NE, E, and S flanks as far as 600 m. A lava flow was reported traveling down the NE flank during 17-18 August.

Sources: Instituto Geofísico-Escuela Politécnica Nacional (IG), Washington Volcanic Ash Advisory Center (VAAC)
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From: Global Volcanism Program, 2021. Report on Reventador. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 18 August-24 August 2021. Smithsonian Institution and US Geological Survey.

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