Volcanic activity worldwide 17 Apr 2025: Santiaguito volcano, Semeru, Ibu, Dukono, Reventador, Poas,…

Map of today's active volcanoes

Map of today’s active volcanoes

Ibu (Halmahera, Indonesia): 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 and is moving at 10 kts in SE direction.
The full report is as follows: VA TO FL070 LAST REP AT 17/1135Z EST VA DTG:17/1540Z to 7000 ft (2100 m)

Lewotobi (Flores): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 9000 ft (2700 m) altitude or flight level 090 and is moving at 15 kts in SE direction.
The full report is as follows: VA TO FL090 LAST REPORTED AT 17/1508Z EST VA DTG:17/2010Z to 9000 ft (2700 m)

Semeru (East Java, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: DISCRETE VA ERUPTION REP AT 17/1425Z MOV SW

Dukono (Halmahera): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 10000 ft (3000 m) altitude or flight level 100 .
The full report is as follows: VA TO FL100 OBS ON SAT IMG MOV SW OBS VA DTG:17/1710Z to 10000 ft (3000 m)

White Island (New Zealand): (17 Apr) Despite limited direct observations in recent weeks, webcam images from Whakatāne and Te Kaha continue to show a rise in ash content within a steam and gas plume at Whakaari/White Island. Similarly, the MetService has detected small amounts of ash in the plume using satellite imagery. From the coast, this appears as a hazy trail extending downwind from the volcano. These signs point to a gradual increase in eruptive activity, prompting the Volcanic Alert Level to be raised to Level 3.
Recent observation and gas measurement flights, along with satellite data, confirm this gradual rise in ash emissions. Although the emissions remain minor, northerly winds can carry the gas and ash plume toward the coast, where residents may notice sulphur-like odours. At this time, ash fall is not expected to impact the Bay of Plenty coastline.
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Santiaguito (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington 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: VA EM DTCTD to 14000 ft (4300 m)

Poas (Costa Rica): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EM DTCTD

Nevado del Ruiz (Colombia): (17 Apr) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA NOT OBS

Sangay (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: PSBL VA EM

Reventador (Ecuador): (17 Apr) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington 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: PSBL VA EMS to 14000 ft (4300 m)