Volcanic activity worldwide 2 Apr 2020: Popocatépetl volcano, Soputan, Merapi, Semeru, Karangetang,...

Thu, 2 Apr 2020, 21:00
21:00 PM | BY: SEVERAL CONTRIBUTORS
Map of today's active volcanoes
Map of today's active volcanoes
Satellite image of Ebeko volcano on  1 Apr 2020
Satellite image of Ebeko volcano on 1 Apr 2020
Satellite image of Sakurajima volcano on  2 Apr 2020
Satellite image of Sakurajima volcano on 2 Apr 2020
An ash plumes from Karangetang volcano on 26 March (image: PVMBG)
An ash plumes from Karangetang volcano on 26 March (image: PVMBG)
Satellite image of Ibu volcano on  1 Apr 2020
Satellite image of Ibu volcano on 1 Apr 2020
Satellite image of Merapi volcano on  2 Apr 2020
Satellite image of Merapi volcano on 2 Apr 2020
Gas plumes from Semeru volcano today (image: PVMBG)
Gas plumes from Semeru volcano today (image: PVMBG)
Satellite image of Dukono volcano on  2 Apr 2020
Satellite image of Dukono volcano on 2 Apr 2020
Satellite image of Yasur volcano on  2 Apr 2020
Satellite image of Yasur volcano on 2 Apr 2020
Steam plume from Semisopochnoi volcano from satellite (image: Sentinel 2)
Steam plume from Semisopochnoi volcano from satellite (image: Sentinel 2)
Lava fountains at Piton de la Fournaise volcano at 15:00 local time today (image: OVPF)
Lava fountains at Piton de la Fournaise volcano at 15:00 local time today (image: OVPF)
Ebeko (Paramushir Island): (1 Apr) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20200401/2300Z FL060 EXTD NE REPORTED OBS VA DTG:01/2310Z

Aso (central Kyushu, Japan): (2 Apr) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ACTIVITY CONT. VA AT 20200402/0600Z FL060 EXTD SW OBS VA DTG:02/0550Z

Sakurajima (Kyushu, Japan): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTED AT 20200402/1932Z FL110 EXTD E OBS VA DTG:02/1920Z

Karangetang (Siau Island, Sangihe Islands, Indonesia): (2 Apr) PVMBG reported that during 23-29 March lava effusion continues to active from the summit crater which traveled 1.8 km downslope the Nanitu, Pangi, and Sense drainages in SW and W direction.
Surveillance cameras observed dense white plumes that rose 246 ft (75 m) above the summit. Foggy weather occasionally prevented observations.
... [read more]

Ibu (Halmahera, Indonesia): (1 Apr) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 .
The full report is as follows: DISCRETE VA EMISSION TO FL070 MOV SW OBS VA DTG:01/2300Z to 7000 ft (2100 m)

Soputan (North Sulawesi, Indonesia): (2 Apr) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA REPORTED TO FL070 AT 02/0007Z OBS VA DTG:02/0030Z

Merapi (Central Java, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: ERUPTION TO FL200 REPORTED AT 02/0821Z OBS VA DTG:02/0905Z

Semeru (East Java, Indonesia): (2 Apr) PVMBG reported that during 23-29 March white plumes rose 328 ft (100 m) above the summit.
Incandescent material is being ejected to an approximate height of 20 meters above the Jonggring-Seloko crater and descended 200-500 m, reaching a maximum distance of 750 m from the crater.
... [read more]

Dukono (Halmahera): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 .
The full report is as follows: CONTINUOUS VA EMISSION TO FL070 MOV S OBS VA DTG:02/1450Z to 7000 ft (2100 m)

Yasur (Tanna Island, Vanuatu): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Wellington warned about a volcanic ash plume that rose up to estimated 5000 ft (1500 m) altitude or flight level 050 and is moving at 5 kts in SE direction.
The full report is as follows: ONGOING LOW LEVEL ERUPTION OBS VA DTG:02/1042Z to 5000 ft (1500 m)

Semisopochnoi (United States, Aleutian Islands): (2 Apr) The Alaska Volcano Observatory (AVO) lowered the alert level of the volcano because no signs of eruptive activity had been detected during the past two weeks:
"Seismic, infrasound, and satellite data over the past two weeks have shown no signs of eruptive activity at Semisopochnoi. A robust steam plume and a crater lake have been seen in clear satellite images, but no recent ash deposits.
"Although seismic activity remains above background, it does not appear to be increasing towards an eruption in the short-term. Thus, AVO is reducing the Aviation Color Code to YELLOW and the Volcano Alert Level to ADVISORY. Unrest continues. Seismic activity persists and is characterized by occasional small earthquakes and satellite data show detectable volcanic gas (sulfur dioxide) being emitted from the volcano. Explosive activity could resume with little to no warning." (AVO)
...2 Apr:
The Alaska Volcano Observatory (AVO) reported that seismic, infrasound, and satellite data over the past two weeks have shown no signs of eruptive activity.
A robust steam plume and a crater lake have been seen in clear satellite images, but no recent ash deposits. Although seismic activity remains above background, it does not appear to be increasing towards an eruption in the short-term.
... [read more]

Popocatépetl (Central Mexico): 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: OCNL VA EMS OBS IN STLT IMAGERY to 19000 ft (5800 m)

Sangay (Ecuador): 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: VA CLDS OBS IN VISIBLE STLT IMAGERY to 19000 ft (5800 m)

Reventador (Ecuador): 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: PSBL VA ACT. to 15000 ft (4600 m)

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: PUFF EMISSIONS OF VA to 24000 ft (7300 m)

Nevados de Chillán (Central Chile): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 .
The full report is as follows: SPORADIC PUFFS OF VA to 14000 ft (4300 m)

Piton de la Fournaise (La Réunion): A new eruption has indeed started at the volcano, as could be confirmed when weather cleared to allow an overflight.
The volcano observatory (OVPF) confirmed that an eruptive fissure opened on the eastern flank of and at about 1.7 km distance from the summit of the Dolomieu crater, likely around 12:20 local time when tremor began. The eruptive fissure is located at around 1900 m above sea level, slightly below the site of the previous eruption during 10-16 Feb 2020.
... [read more]
...2 Apr:
A new eruption might be underway at the volcano. This morning, a seismic crisis was recorded by the instruments of the volcano observatory (OVPF) with 92 superficial volcano-tectonic earthquakes between 8:15 am and 8:51 am local time.
The earthquake swarm, related to the fracturing of and intrusion into rocks due to magma pressure from below, was accompanied by rapid ground deformation (inflation) of 10-20 micro-radians, which means that magma had moved to shallow depths beneath the surface.
... [read more]
...2 Apr:
OVPF recorded 92 volcano-tectonic earthquakes today from 08:15 to 08:51 local time.
Seismic crisis is associated with rapid deformation. This indicates that magma has left the surface magmatic reservoir and has spread to the surface.
Source: Observatoire volcanologique du Piton de la Fournaise volcano activity update 2 April 2020

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