Tungurahua volcano (Ecuador): increasing activity, explosions
Thu, 27 Aug 2015, 06:5706:57 AM | BY: T
Activity at the volcano increased since Tuesday (25 Aug), the volcano observatory reported.
Seismogram of Tungurahua's BMAS station showing the tremor that began at 03h05 (TL) and was followed by five explosions (05h57, 06h26, 07h02, 07h52 and 09h44)
From 03:05 local time, seismic activity increased with the appearance of tremor accompanying ash emissions. Black, hence likely juvenile (from fresh magma) ash fell on Chontapamba Pillate, Bilbao and Juive Grande is recorded. Subsequently, 5 explosions were recorded starting at 05:57. The intensity of these increased progressively, the strongest occurring at 08:05.
Ash plumes rose to approx. 2 km above the volcano's summit and drifted west.
IGEPN warns that a further increase in activity could likely lead to strong explosions with associated pyroclastic flows.