Fagradalsfjall (Reykjanes Peninsula, Iceland): (23 Dec) The Icelandic Meteorological Office (IMO) detected an increasing trend of seismic activity began yesterday.
18 quakes at regular intervals of 1 to 10 per minute have been recorded located 2-4 km northeast of Geldingadalir followed by a significant rise of seismic energy at about 00:30 local time.
… [read more]
Shiveluch (Kamchatka): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 13000 ft (4000 m) altitude or flight level 130 and is moving at 15 kts in NW direction.
The full report is as follows: POSS VA EMISSIONS CONTINUING OBS VA DTG:23/1120Z to 13000 ft (4000 m)
Suwanose-jima (Ryukyu Islands): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ACTIVITY CONT. VA AT 20211223/1800Z OVER FL030 EXTD
Hunga Tonga-Hunga Ha’apai (Tonga, Tonga Islands): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Wellington warned about a volcanic ash plume that rose up to estimated 34000 ft (10400 m) altitude or flight level 340 and is moving at 10 kts in NE direction.
The full report is as follows: ERUPTION AT 20211219/2030Z ONGOING, CYCLIC ERUPTION WITH PLUME EXTENDING TO FL340. to 34000 ft (10400 m)
…22 Dec:
A breathtaking view occurred eyewitness at the boat floating while the major eruption at the volcano on 20 December. During the explosion a base surge was generated, a common feature of many phreatomagmatic (hydromagmatic) eruptions. Pyroclastic cloud consisting of ash and steam is formed in a ring around the base of the eruption column.
A high-resolution satellite image of the eruption was captured by the MAXAR satellite as attached below.
… [read more]
Semisopochnoi (United States, Aleutian Islands): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Anchorage warned about a volcanic ash plume that rose up to estimated 6000 ft (1800 m) altitude or flight level 060 and is moving at 25 kts in NNW direction.
The full report is as follows: SPORADIC VA EMISSIONS CONTINUE to 6000 ft (1800 m)
Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 .
The full report is as follows: VA EMS OBS MOVG S to 15000 ft (4600 m)
Nevado del Ruiz (Colombia): (23 Dec) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 19000 ft (5800 m) altitude or flight level 190 .
The full report is as follows: DISCRETE VA EM to 19000 ft (5800 m)
Sangay (Ecuador): Mild explosive activity continues from the volcano. The Volcanic Ash Advisory Center (VAAC) Washington reported intermittent emissions of volcanic ash plumes.
The full report is as follows: sporadic emissions of volcanic ash
Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 24000 ft (7300 m) altitude or flight level 240 .
The full report is as follows: continuous ash emissions to 24000 ft (7300 m)
Piton de la Fournaise (La Réunion): (22 Dec) The effusive activity at the volcano continues.
A fountaining continues at four fissure vents feeding the lava flows on the southern flanks.
… [read more]
