Satellite image of Ruang volcano on 1 May 2024
Wed, 1 May 2024, 14:00On 25 April the Vanuatu Meteorology and Geohazards Department (VMGD) reported that activity at Yasur continued at a level of “major unrest,” as defined by the Alert Level 2 status (on a scale of 0-5). Recent visual observations and photos taken in the field indicated that explosions continued, producing emissions of gas, steam, and/or ash. Gas emissions were identified in satellite images during the previous few days.
Wed, 1 May 2024, 14:00
JMA reported that eruptive activity at Suwanosejima's Ontake Crater continued during 22-29 April. Crater incandescence was observed in webcam images nightly. Emissions rose as high as 800 m above the crater rim; no explosions were detected.
Wed, 1 May 2024, 14:00KVERT reported that eruptive activity at Sheveluch continued during 18-26 April with a daily thermal anomaly identified in satellite images. A plume of resuspended ash drifted 195 km S and SE during 22-24 April. The Aviation Color Code remained at Orange (the third level on a four-color scale).
Wed, 1 May 2024, 14:00
PVMBG reported that eruptive activity continued at Semeru during 24-30 April. Almost daily white-and-gray ash plumes rose 100-1,000 m above the summit and drifted in multiple directions; an eruptive event was recorded on 30 April though no emissions were observed. The Alert Level remained at 3 (the third highest level on a scale of 1-4).
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Wed, 1 May 2024, 14:00IG-EPN reported that high levels of eruptive activity continued at Sangay during 23-30 April. The seismic network recorded 388-1,167 daily explosions during the week. Daily gas-and-ash plumes visible in webcam and/or satellite images generally rose as high as 2 km above the summit and drifted NW, W, and SW; weather conditions often hindered views during the week.
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Wed, 1 May 2024, 14:00
IMO reported that the cone just E of Sundhnúk and along the fissure within the Reykanes volcanic system continued to erupt lava. The average effusion rate was 0.9 (± 0.4) cubic meters per second during 15-25 April, whereas during the first half of April the rate was an estimated 3-4 cubic meters per second. By 25 April the lava-flow field was an estimated 6.16 square kilometers with an approximate volume of 34 (± 1.9) million cubic meters.
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Wed, 1 May 2024, 14:00IG-EPN reported that a moderate eruption at Reventador was ongoing during 23-30 April. Seismicity was unknown due to data transmission problems. Even though cloudy weather conditions often prevented webcam and satellite observations, daily ash-and-gas plumes were visible rising as high as 1.4 km above the crater rim and drifting NW, W, and SW.
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Wed, 1 May 2024, 14:00
BPPTKG reported that the eruption at Merapi (on Java) continued during 19-25 April. Seismicity remained at high levels. The SW lava dome produced 152 lava avalanches that traveled as far as 2 km down the SW flank.
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Wed, 1 May 2024, 14:00On 18 April INETER reported that there continued to be no signs of lava-lake activity at the bottom of Masaya's Santiago Crater after material from a landslide had covered the lake on 2 March. Small landslides continued to occur periodically, and one was shown in a webcam photo from 17 April. Continuous diffuse gas emissions rose from a vent on the crater floor and from a new vent located on the inner SW wall.
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Wed, 1 May 2024, 14:00
PVMBG reported that eruptive activity at Marapi (on Sumatra) was ongoing during 24-30 April. White-and-gray ash plumes rose 300-1,000 m above the summit and drifted N, NW, and W on 24, 27, and 29 April. White steam-and-gas plumes rose 300 m above the summit and drifted NW on 26 April; emissions were not visible on the other days, though an eruptive event was recorded on 25 April.
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Wed, 1 May 2024, 14:00PVMBG reported that the eruption at Lewotolok continued during 24-30 April. White-and-gray ash plumes rose as high as 400 m above the summit and drifted W and NW during 25-26 April. White emissions rose up to 500 m above the summit and drifted W and NW on the other days.
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Wed, 1 May 2024, 14:00
PVMBG reported that during 24-25 and 27 April white steam-and-gas plumes rose as high as 100 m above the summit of Lewotobi's Laki-laki volcano and drifted W and SW. On 28 April white-and-gray ash plumes rose 100-300 m and drifted SW and W. Emissions were not observed on 26 April.
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Wed, 1 May 2024, 14:00Satellite data showed an area of yellowish-green discolored water in the vicinity of the submarine Lateiki volcano on 26 April. The area of discolored water was narrow and drifted about 2 km SE and curved to the W, becoming more diffuse, and extending another 8.5 km before dissipating.
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