Volcanic activity world-wide 21-22 November 2012: Etna, Lokon, Popocatépetl, Fuego, Santiaguito, Chirpoi, Sakurajima, Ambrym, Nyiragongo
Strombolian activity has resumed at the New SE crater of Etna volcano in Italy. Tremor began rising on 20 November. On the night of 21 November, incandescence was seen in Etna's New Southeast crater. Incandescence was last observed from the crater in April 2012.On 22 Nov, a swarm of earthquakes has started in the NW sector of the volcano at depths mostly around 20 km.
jeu., 22 nov. 2012, 16:4816:48 PM | AUTEUR : T
Another small eruption at Lokon volcano in North Sulawesi (Indonesia) was observed by our reporters at the volcano observatory on 20 Nov.
Popocatépetl volcano in Mexico remains with about 1 emission per per hour. Sometimes, incandescent tephra is ejected to the crater area during the more vigorous explosions.
Fuego volcano in Guatemala has an active lava flow now 800 m long and some weak mild strombolian explosions every few hours, ejecting bombs to about 100 m above the crater and producing ash clouds rising 200-500 m height above the crater.
The lava flows from the Santiaguito lava dome remain very active, INSIVUMEH reports. At 06:09 on 22 Nov morning, a moderate pyroclastic flow was triggered by collapsing material of one of the flow fronts on the SE side.
Sakurajima volcano in Japan has returned to its normal average activity level of 1-2 moderate explosions per day, with ash clouds reaching 6-9,000 ft (1.8-2.7 km) altitude.
Thermal anomalies continue to be detected almost daily at the Snow cone, Chirpoi volcano in the Kuriles. No ash plumes have been detected which means the activity produces little to no ash.
SO2 plumes are visible on today's NOAA satellite images from Ambrym volcano on Vanuatu and Nyiragongo volcano in the DR Congo.
mar., 20 nov. 2012, 16:38
sam., 17 nov. 2012, 09:01