Fagradalsfjall (Reykjanes Peninsula, Iceland): The eruption from Fagradalsfjall continues with little changes overall and no signs of stopping any time soon. Fluid lava is being erupted from several vents along 3 fissure segments, and slowly forms growing shields piling up in the valley floors.
The following animation (twitter) shows how lava has been filling Geldingadalur and, since 5 April when the second fissure opened, the adjacent Meradalur valley to the northeast of Geldingadalur:
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Really cool animation showing how much the lava in #Fagradalsfjall has grown since it started just over a month ago! #eruption
From @Vedurstofan using data from @Haskoli_Islands, Landmælingar Íslands and the Icelandic Institute of Natural History pic.twitter.com/h0LNVhBKaa
— sigridurkristjans (@sissakristjans) April 20, 2021
A new lava flow made its way through a narrow valley into Meradalur yesterday, threatening to cut a hiking trail. Although eventually this didn’t happen, rescue teams evacuated some visitors in areas threatened to be cut off.
Sakurajima (Kyushu, Japan): (26 Apr) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: EXPLODED AT 20210426/0035Z FL080 EXTD SW OBS VA DTG:26/0030Z
Suwanose-jima (Ryukyu Islands): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 5000 ft (1500 m) altitude or flight level 050 .
The full report is as follows: VA EMISSIONS CONTINUING OBS VA DTG:26/1720Z to 5000 ft (1500 m)
Ibu (Halmahera, Indonesia): (26 Apr) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VONA STATE ERUPTION TO FL070 MOV N AT 26/0044Z
Dukono (Halmahera): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: CONTINUOUS VA EMISSIONS TO FL070 MOV N EST VA DTG:26/1600Z
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 10000 ft (3000 m) altitude or flight level 100 and is moving at 40 kts in S direction.
The full report is as follows: PERIODIC VA ERUPTION CONTINUES to 10000 ft (3000 m)
Popocatépetl (Central Mexico): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA NOT OBS IN SAT.
Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 .
The full report is as follows: LGT VA EM to 16000 ft (4900 m)
…26 Apr:
The explosive eruption of the volcano continues.
Moderate-to-strong explosions continue to erupt at regular intervals of 9 to 12 per hour.
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Nevado del Ruiz (Colombia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows: VA EM OBS to 20000 ft (6100 m)
Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows: DISCRETE VA EM to 20000 ft (6100 m)
Reventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA NOT OBS
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 and is moving at 25 kts in E direction.
The full report is as follows: SPORADIC PUFF EMISSION to 24000 ft (7300 m)
Soufrière St. Vincent (West Indies, St. Vincent): Volcanic activity continues as volcanic plumes – in the form of sulfur dioxide emissions – from the recent volcano explosions continue to circle the globe, almost 14 days since the first eruption. The emissions are reaching the volcano again after having gone round the globe.
A GIF animation depicts the volcano’s SO2 emissions traveling around the world (source: @PlatformAdam/twitter)
Here the Gif from April 10 to 20 of SO2 emissions from #LaSoufrière eruptions. #volcano #svg #monitoring @uwiseismic @CultureVolcan pic.twitter.com/2Gmz9hfGJC
— ADAM Platform (@PlatformAdam) April 22, 2021
Piton de la Fournaise (La Réunion): The effusive eruption of the volcano continues and has remained essentially unchanged since the last update.
Fissure vents erupting mild lava fountains and continue to feed the lava flow, currently about 3,5 km long. The flow front on the southern slope at Grandes Pentes is cooling. The lava flow branches off into few arms, where they form a spreading field of lava.
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Volcano Activity Summary for 26 Apr 2021:
