Volcanic activity world-wide 26 August 2012: Tungurahua, El Hierro, Popocatépetl, Batu Tara, Sakurajima, Iceland glacial flood
Sunday Aug 26, 2012 16:46 PM | DOOR: T
Tungurahua volcano's activity is relatively low. There are weak pulses of tremor associated with some small to medium explosions. Still, small pyroclastic flows continue to occur sporadically, the most recent one on 24 August at 15:33 on local time.
IG has published an informative update and mentions that tilt meters still indicate significant inflation, and that deep tremor suggests new magma is rising. Therefore, the current low in activity might be only a temporary pause.
Activity of Popocatépetl remains relatively low. About 1 weak steam explosion has been occurring per hour over the past day. Still, the volcano produces a large SO2 plume visible on yesterday's satellite image.
The number of earthquakes at El Hierro remains elevated. Yesterday, 11 quakes, and today there have been 8 small events registered so far. Most of them are at about 10 km depth.
Batu Tara (Sunda Islands, Indonesia) produced more ash clouds rising to 1.8 km altitude today (6,000 ft).
Sakurajima volcano produced 3 relatively small explosions during the past 24 hours.
Last not least, we forgot to mention a small glacier flood (jökulhlaup) from Vatnajökull glacier, which occurred 24-25 Aug. The flood was likely caused by hydrothermal activity in the Bárdarbunga volcano system, not by an eruption.
Volcanic activity world-wide 25 August 2012: Tankubanperahu, Grozny, Karymski, Ambrym & Yasur, El Hierro, Popocatépetl, Fuego, Santiaguito, Nevado del Ruiz, Batu Tara, Sakurajima
Saturday, Aug 25, 2012
Volcanic activity world-wide 24 August 2012: Tungurahua, Etna, El Hierro, Long Valley, Shiveluch, Popocatépetl, Fuego, Santiaguito, Nevado del Ruiz, Batu Tara, Sakurajima
Friday, Aug 24, 2012
Tungurahua volcano's activity remains at similar moderate levels as yesterday, lower than compared to a few days ago. Explosions every few hours are accompanied by strong cannon-shot noises and eject glowing bombs to up to 500 m height. Steam and ash plumes rise up to 4 km above the crater. Light ash fall was reported to the W and NW in the sectors of Chacauco, Cotaló and El Tablón. ... [meer...]
Volcanic activity world-wide 23 August 2012: Tungurahua, Etna, Popocatépetl, Fuego, Santiaguito, Nevado del Ruiz, Batu Tara, Sakurajima
Thursday, Aug 23, 2012
Volcanic activity world-wide 22 August 2012: Tungurahua, Popocatépetl, Fuego, Santiaguito, Sotará, Batu Tara, Sakurajima, El Hierro, Havre Seamount
Wednesday, Aug 22, 2012
Tungurahua volcano has been very active the past days, with continous ash emissions and occasional large explosions producing ash plumes up to 32,000 ft (ca. 10 km) altitude. IG scientists on an overflight observed strombolian activity from the inner summit crater which has filled with fresh lava. ... [meer...]
Volcanic activity world-wide 21 August: Tungurahua, Cleveland, El Hierro, Popocatépetl, Fuego, Turrialba, Batu Tara, Sakurajima, Kamchatka
Tuesday, Aug 21, 2012
Tungurahua volcano emits a near constant steam and ash plume rising on average 1.5 km with peaks of up to 4 km above the crater. This activity produces significant ash fall in areas west of the volcano. Intermittent explosions throw bombs to 500 m height and up to 1.5 km radial distance. A strong SO2 plume can be seen on satellite imagery. ... [meer...]