In the time of 24 February to 3rd March strong eruptions & explosions were reported, that threw out ash to altitudes of 10 km and blocks were rolling down the volcano.

It was reported that during 7-12 January there were visible steam-and-ash plumes from Tungurahua, ash fell within 8 km and roaring, explosions, and "cannon shot" noises were reported. Also incandescence blocks were ejected from the crater and rolled down the flanks.

IG reported that multiple lahars and mudflows descended drainages around Tungurahua on 14 October. A majority of the lahars traveled down drainages in the Pampas sector to the S, carrying blocks an average of 30-40 cm in diameter and up to 2 m in diameter. Other lahars and small mudflows descended drainages to the NW and W. On 19 October a small lahar descended the Bilbao drainage to the W.

The IG reported that clouds mostly prevented visual observations of Tungurahua during 3-9 September. On 3 September, a small lahar carried blocks down river drainages to the NW. Steam plumes rose 200 m above the crater on 6 September. On 8 September, a lahar descended a drainage to the S and carried blocks up to 50 cm in diameter.

After last week's intense series of larger ash eruptions, such as on 10 May, Tunguarahua seems to be quieting down and has not registered any major explosions since May 11.

IG reported steam and ash-and-steam plumes from Tungurahua that rose to altitudes of 5.8-8 km (19,000-26,200 ft) a.s.l. during 27 February - 1 March. ash plumes drifted NW, W, SW, and SE, ashfall was reported in areas to the SW on 27 February. Lahars or mudflows descended the Mapayacu and Choglontus drainages in the SW, and drainages in the Pampas sector to the S on 27 and 28 February.
 

ash and steam-and-ash plumes from Tungurahua were rosing to altitudes of 6-9 km a.s.l. during 12-19 February and drifted mainly NW, W, and NE. During 12-13 and 16 February, incandescence at the summit was
observed. Blocks were rolling down the flanks and on 18 February, a lahar descended the Achupashal drainage to the NW.

ash plumes were spotted and rose to altitudes of 5.5-9 km during 23-29 January.

Tungurahua volcano's activity has been increasing over the past days. The Ecuadorian Insititute of Geophysics (IG) reports an increase in the frequency and size of ash explosions. IG interprets the present style of activity as related to constant degassing in an open-conduit system filled with vicsous magma. Sronger explosions alternate with near-constant emissions of gas and ash.
According to news articles at least 1,000 local residents have been evacuated due to the intensified activity of the volcano in Ecuador.

Tungurahua volcano continues its explosive eruptions producing ash plumes rising to altitudes of 6-9 km (19,700-30,000 ft) a.s.l. ash ashfall was reported from multiple areas downwind, mainly to the W and SW. Loud roars and "cannon-shot" like detonations are heard in several areas near the volcano. IG reported the passing of a lahar on the SW flank that lasted about 30 minutes on 10 November.
Visual observations include incandescent blocks ejected from the summit and landing on the flanks, rolling down between a few hundred meters and up to a kilometer during the past week.

IG reported that ash plumes from Tungurahua, occasionally noted after
explosions, rose to altitudes of 5.5-9 km (18,000-29,500 ft) a.s.l.
during 17-23 October. Plumes drifted all directions, except to the E
and SE. On 17 October, incandescent material propelled from the summit
by explosions fell onto the flanks. A resultant ash plume drifted W.
Fumarolic activity was noted on the NW flank. During 17-18 October,
ashfall was reported from areas to the NW, N, and SW. On 19 October,
lahars descended NW drainages and consequently the road between Ambato
and Baños was closed.

IG reported that ash and steam-and-ash plumes from Tungurahua rose to
altitudes of 5.3-7 km during 19-20 and 22-24
September.

Tungurahua volcano continues to erupt. Although still considerable, the intensity of activity has been showing a decreasing trend in the past weeks and months. Intermittend explosions produced plumes rising to altitudes of 5.3-8 km (17,400-26,200 ft) a.s.l. during 5-6 and 9-10 September.

Some explosions eject visible incandescent blocks rolling down the flanks. On 10 September, ashfall was reported in areas to the SW.

Moderately strong explosions continue at Tungurahua volcano.
Ash plumes rose to altitudes of 6-9 km (19,700-29,500 ft) a.s.l. during 22-28 August and drifted mainly NW, W, and SW. IG reported noises resembling the sounds made by blocks rolling down the flanks were reported during 22-26 August and explosions rattled windows in surrounding areas, including Baños 8 km to the N, on 24 and 25 August. ashfall was reported in nearby areas, especially to the NW, W, and SW, during 25-28 August. On 28 August, lahars affected W and NW drainages, the Pampas sector, and interrupted traffic on the route between Ambato and Baños. Incandescent blocks rolled down the flanks.

IG reported that during 18-24 July, intermittently visible ash plumes from Tungurahua rose to altitudes of 5.2-8 km (17,100-26,200 ft) a.s.l. and drifted NW, W, and SW. Ashfall was reported from areas SW and W during 19-21 and 24 July. On 20 July, mudflows were reported from drainages to the NW. On 21 July, a steam-and-gas plume drifted W. On 21, 22, and 24 July, ash plumes were occasionally accompanied by roaring sounds, “cannon shots”, or noises that resembled blocks rolling down the flanks.
 

During 30 May-5 June, IG reported that ash plumes intermittently visible from Tungurahua rose to altitudes of 6-7 km (19,700-23,000 ft) a.s.l. and drifted mainly SW, W, and NW. ashfall was reported from areas down wind between 30 Mayand 3 June. Muddy waters traveled down W, SW, and NW drainages during 30 May-1 June. Lahars were reported from the Choglontus drainage to the WSW on 30 May and from the Motilones drainage to the WNW on 1 June. During 4-5 June, roaring noises were reported.
 

During 15-22 May, IG reported that ash plumes intermittently visible from Tungurahua rose to altitudes of 5.1-7 km (16,700-23,000 ft) a.s.l. and drifted mainly W, NW, and E. ashfall was reported from areas SW and W during 16-17 May, SW on 19 May, and W and NW during 20-21 May. Lahars and muddy waters traveled down W, NW, and N ravines during 15 and 17-19 May and caused the road to Bañosto close on 18 May. Lahars that traveled in the Bilbao sector and down NW ravines on 20 May blocked the Baños-Penipe highway and obstructed the route between Ambato and Baños for about 6 hours. Muddy waters traveled down ravinesto the N.

IG reported that lahars and muddy waters that traveled into the Pampas sector and in W and NW ravines blocked the Baños - Penipe highway during parts of 3, 4, and 6 May.
During 2-3 and 5-7 May, ash plumes from Tungurahua rose to altitudes of 5.2-7 km (17,100-23,000 ft) a.s.l. and drifted NW and W.
ashfall was reported in areas about 8 km to the SW and W during 3, 6, and 7 May.
The Washington VAAC reported that a diffuse ash plume was visible on satellite imagery drifting W on 8 May. Clouds occasionally inhibited visual observations during the reporting period.
 

IG reported that during 17-18 April, Strombolian activity from Tungurahua was observed; incandescent material was ejected about 500 m above the summit and blocks descended down the flanks. Lahars carring large blocks NW down the Mandur gorge caused a road closing on 19 April. During 17-24 April, ash plumes rose to altitudes of 5.5-9 km (18,000-29,500 ft) a.s.l. and drifted W and N. ashfall was reported from areas mainly to the N, NW, W, and SW during 17, 19, 21-22, and 24 April. On 23 April, lahars were observed in several gorges to the NW. Clouds occasionally inhibited views of the summit during the reporting period.
 

Tungurahua volcano continues with strong explosions producing eruption columns rising to 10-11 km and pyroclastic flows and lahars (mud-flows) on its flanks:
IG reported that on 27 March, at 1716, an ash column from Tungurahua rose to an altitude of 11 km (36,000 ft) a.s.l. An accompanying pyroclastic flow traveled 1 km down the Mandur gorge on the NW flank. A lahar traveled W down the Bilbao gorge and vibrated near-by structures. On 28 March, ash plumes again rose to altitudes of 11 km (36,000 ft) a.s.l. Ashfall was reported from areas downwind. Noises that resembled rolling blocks down the flanks were reported. Hot steaming mudflows traveled N, NW, and W. On 29 March, three explosions rattled windows in areas as far away as 8 km. During 30 March-3 April, ash plumes, occasionally accompanied by roaring noises and “cannon shots,” rose to altitudes of 6-10.5 km (19,700-34,400 ft) a.s.l. and drifted mainly W and NW. Incandescent material was ejected 300 m above the crater and subsequent...