Map of today's active volcanoesStromboli (Eolian Islands, Italy): (18 Jun) The Sezione di Catania - Osservatorio Etneo (INGV) reported that eruptive activity continued at Stromboli during 8-14 June. Webcam images showed Strombolian activity from five vents in Area N within the upper part of the Sciara del Fuoco, and from at least two vents in Area C-S (South-Central Crater) on the crater terrace. The vents in Area N (two in sector N1 and three in sector N2) continued to produce medium-intensity explosions, ejecting lapilli and bombs above the vents, during most of the week.An explosion at 0712 on 12 June was followed by three lower-intensity explosions that occurred within a few minutes. An eruption cloud was produced but quickly dispersed. The event ejected lapilli, bombs, and lava spatter onto the upper parts of the Sciara del Fuoco, some of which was channeled down the flank. ... [read more] ... [show less] Low-intensity explosions ejected tephra from two vents in Area C-S at a low rate; activity intensified to moderately high levels on 15 June. The Alert Level remained at Yellow (the second lowest level on a four-level scale) according to the Dipartimento della Protezione Civile.Sources: Source: Sezione di Catania - Osservatorio Etneo (INGV)Etna (Sicily, Italy): (18 Jun) The Sezione di Catania - Osservatorio Etneo (INGV) reported minor eruptive activity at Etna’s summit craters beginning on 14 June. A Volcano Observatory Notice to Aviation (VONA) was issued at 1135 on 14 June raising the Aviation Color Code (ACC) to Yellow (the second lowest color on a four-color scale) due to unrest above background levels. Diffuse ash emissions occurred on 15 June, prompting the INGV to raise the ACC to Orange.Ashfall did not occur beyond the summit area. Minor ash emissions continued at least through 17 June. ... [read more] ... [show less] Sources: Source: Sezione di Catania - Osservatorio Etneo (INGV)---Bardarbunga (Central Iceland): (18 Jun) The Icelandic Meteorological Office (IMO) reported that an intense seismic swarm began at Bárdarbunga on 13 June in the NW part of the caldera. A M 2.6 earthquake and an M 4.8 earthquake were recorded at 2010 and 2014, respectively; both events were located at depths of 2-4 km. The events were followed by several more earthquakes above M 3 and more than 180 smaller earthquakes by 0043 on 14 June.The Aviation Color Code (ACC) was raised to Yellow (the second lowest color on a four-color scale). The swarm began to decrease in intensity by 0300; by 0846 about 400 earthquakes in total had been detected. The seismic activity did not escalate; only 14 minor earthquakes with magnitudes of 0.9 or lower were detected from around mid-morning on 14 June to 1242 on 15 June with the activity characterized as at background. ... [read more] ... [show less] The ACC was lowered to Green. IMO noted that the last comparable swarm occurred in January 2025.Sources: Source: Icelandic Meteorological Office (IMO)Shiveluch (Kamchatka): (18 Jun) The Kamchatkan Volcanic Eruption Response Team (KVERT) reported continuing eruptive activity at the lava domes along the N crater floor of Young Sheveluch (on the SW flank of Old Sheveluch) during 11-17 June. A daily thermal anomaly was identified in satellite images. Ash plumes were identified in satellite images on 12 June drifting 30 km SW.Explosions at 1600 on 17 June produced ash plumes that rose as high as km (32,800 ft) a.s.l. and drifted at least 300 km NE. The Aviation Color Code remained at Orange (the second highest level on a four-color scale). ... [read more] ... [show less] Sources: Source: Kamchatkan Volcanic Eruption Response Team (KVERT)---Sakurajima (Kyushu, Japan): (18 Jun) The Japan Meteorological Agency (JMA) reported ongoing eruptive activity at Minamidake Crater (Aira Caldera’s Sakurajima volcano) during 8-15 June. Explosions at 2141 on 8 June, and at both 1555 and 2139 on 11 June, generated ash plumes that rose 400-800 m above the summit and drifted SE and E with blocks ejected 500-700 m from the vent. Sulfur dioxide emissions were slightly above normal, averaging 1,400 tons per day on 12 June.Very small eruptive events and nighttime crater incandescence were recorded during 12-15 June. The Alert Level remained at 3 (on a 5-level scale), and the public was warned to be cautious within 2 km of both the Minimadake and Showa craters. ... [read more] ... [show less] Sources: Source: Japan Meteorological Agency (JMA)---Suwanose-jima (Ryukyu Islands): (18 Jun) The Japan Meteorological Agency (JMA) reported that eruptive activity at Suwanosejima's Ontake Crater continued during 5-12 June. Incandescence was observed nightly in webcam images. Eruptive events generated plumes that rose as high as 800 m above the crater rim.No explosions were recorded. The Alert Level remained at 2 (the second level on a five-level scale) and the public was warned to be cautious within 1.5 km of the crater. ... [read more] ... [show less] Sources: Source: Japan Meteorological Agency (JMA)---Canlaon (Central Philippines): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20260619/1746Z FL100 EXTD SW REPORTED OBS VA DTG:19/1750Z...18 Jun:The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported continuing eruptive activity at Kanlaon during 10-17 June. The seismic network recorded 0-19 daily volcanic earthquakes; during 12-17 June the counts included 2-15 daily periods of volcanic tremor lasting one minute to nearly four hours each. Sulfur dioxide emissions ranged from 979 to 2,293 tonnes per day.Daily volcanic emissions generally rose as high as 1 km above the summit and drifted mainly NW, W, and SW. There were 1-12 daily periods of ash emissions during 12-17 June, each lasting as short as one minute to as long as three hours and 41 minutes. Specifically, the webcam recorded grayish ash emissions at 0828 on 12 June, at 0704 on 13 June, and at 0858 and 1721 on 16 June rising 300-600 m above the crater rim and drifting NW, W, and SW. ... [read more] ... [show less] At least 20 emissions were recorded during 15-16 June. The Alert Level remained at 2 (on a scale of 0-5); the public was warned to stay out of the 4-km-radius Permanent Danger Zone (PDZ) and pilots were advised to avoid flying close to the summit.Sources: Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)Mayon (Luzon Island, Philippines): (18 Jun) The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption at Mayon continued during 10-17 June, characterized by lava effusion, periodic pyroclastic density currents (PDCs), incandescent rockfalls, ash-and-gas plumes, and occasional minor Strombolian activity. Emissions were visible daily rising as high as 1.3 km above the summit and drifting mainly NW, W, and SW. Each day the seismic network recorded 191-362 rockfalls, 0-5 PDCs, and 8-24 volcanic earthquakes.The earthquake counts included 3-16 periods of volcanic tremor, each lasting between 1-60 minutes on most days; no periods of tremor were detected on 15 June. Daily measurements of sulfur dioxide emissions averaged 1,082-3,619 tonnes per day. The lava flows did not advance in the Mi-isi (S), Basud (E), and Bonga (SE) drainages, remaining 1.8, 3.8, and 3.2 km long, respectively. ... [read more] ... [show less] The number of evacuees was similar to the previous week; by 1800 on 15 June a total of 3,978 people (1,088 families) were staying in 12 evacuation shelters, and an additional 137 people (40 families) were staying with friends or relatives, according to the Disaster Response Operations Monitoring and Information Center (DROMIC). The Alert Level remained at 3 (on a 0-5 scale) and residents were reminded to stay away from the 6-km-radius Permanent Danger Zone (PDZ). PHIVOLCS recommended that civil aviation authorities advise pilots to avoid flying close to the summit.Sources: Sources: Philippine Institute of Volcanology and Seismology (PHIVOLCS), Disaster Response Operations Monitoring and Information Center (DROMIC)Titan Ridge (Admiralty Islands and Bismarck Sea Volcanic Province): (18 Jun) The Rabaul Volcano Observatory (RVO) reported that the eruption at Titan Ridge continued during 4-9 June, though at a low level. The number of hydroacoustic signals per day decreased to the lowest levels detected since the eruption began. A small wispy steam plume was occasionally visible.A long plume of discolored water persisted; a 15 June satellite image showed a narrow plume of discolored water extending more than 100 km W of the eruption site. The activity produced a small amount of floating pumice and minor thermal anomalies. Significant amounts of floating pumice, forming thick and extensive rafts, continued to wash up on the shores of the Admiralty Islands. ... [read more] ... [show less] Sources: Source: Rabaul Volcano Observatory (RVO)---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 .The full report is as follows: VA EMISSIONS OBS AT 16/1540Z MOV ENE OBS VA DTG:19/1540Z to 7000 ft (2100 m)...18 Jun:The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that activity at Ibu continued during 11-17 June, with daily eruptive events recorded by the seismic network. Daily gray or white-to-gray ash plumes rose 300-800 m above the summit and drifted in multiple directions. Incandescence at the summit was visible in nighttime webcam images.The Alert Level remained at 2 (the second lowest level on a four-level scale) and the public was advised to stay 2 km away from the active crater and 3.5 km away from the N crater wall opening. ... [read more] ... [show less] Sources: Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)---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 .The full report is as follows: VA TO FL090 OBS AT 19/1050Z MOV NE EST VA DTG:19/1050Z to 9000 ft (2700 m)...18 Jun:The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that eruptive activity continued at Lewotobi Laki-Laki during 11-17 June. Multiple daily ash plumes rose 300-1,500 m above the summit and drifted E, N, NW, and W. Incandescence at the summit was visible in webcam images on a few of the days.The Alert Level remained at 3 (on a scale of 1-4), and the public was warned to stay 5 km away from the center of Laki-Laki. ... [read more] ... [show less] Sources: Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)---Lewotolo (Lesser Sunda Islands): (19 Jun) 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 .The full report is as follows: VA TO FL090 OBS AT 19/0050Z MOV NW OBS VA DTG:19/0050Z to 9000 ft (2700 m)...18 Jun:The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported ongoing eruptive activity at Lewotolok during 11-17 June. White plumes rose as high as 100 m above the summit on most or all days. White-and-gray plumes rose as high as 200 m above the summit during 12 and 16-17 June.Faint rumbling was heard at the observation post (6 km SW) on 13 and 17 June. The Alert Level remained at 2 (on a scale of 1-4) and the public was warned to stay 2 km away from the summit. ... [read more] ... [show less] Sources: Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)---Merapi (Central Java, Indonesia): (18 Jun) The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that the eruption at Merapi (on Java) continued during 11-17 June with occasional lava avalanches produced by the active lava dome on the upper SW flank. White plumes rose as high as 250 m above the summit on most days. There were nine lava avalanches that traveled as far as 2 km down the Sat/Putih and Krasak drainages on the W flank on 11 June and one that traveled 1.9 km down the Sat/Putih drainage on 12 June.One pyroclastic flow was detected by the seismic network on 12 June. There were 3-4 daily lava avalanches that descended the Krasak drainage as far as 2 km during 13-14 June and 5-9 daily lava avalanches that descended the Sat/Putih drainage as far as 1.9 km during 15-17 June. Two pyroclastic flows were observed traveling 2 km down the W flank on 16 June, though three were detected seismically. ... [read more] ... [show less] The Alert Level remained at 3 (on a scale of 1-4), and the public was warned to stay 3-7 km away from the summit, based on location.Sources: Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)Semeru (East Java, Indonesia): A pyroclastic flow (hot avalanche of volcanic fragments and gas) occurred this morning at the volcano, traveling about 3 km to the base of the main cone and generating a large ash plume that rose to approx. 5 km altitude.Most likely, the cause of the avalanche was a partial collapse of the active lava dome and lava flow on the very steep upper southern slope of Semeru. ... [read more] ... [show less] No damages were reported, probably mainly due to the comparably limited size of the event. These hot density currents are the most dangerous hazards in the vicinity of active stratovolcanoes such as Semeru, and they can travel distances of 10-20 km or even more in extreme cases, causing total devastation on their path.The following post shows a video found on social media of the flow....18 Jun:The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that activity continued at Semeru during 11-17 June, with daily eruptive events recorded by the seismic network. Daily white-to-gray ash plumes rose 300-1,000 m above the summit and drifted in multiple directions. The Alert Level remained at 3 (the second lowest level on a scale of 1-4) and the public was warned to stay at least 5 km away from the summit in all directions, 13 km from the summit on the SE flank along the Kobokan drainage, and 500 m from the banks of the Kobokan drainage as far as 17 km SE of the summit.Sources: Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM) ... [read more] ... [show less] ---Global Volcanism Program, 2026. Report on Semeru. In: Mayberry, G (ed.), Weekly Volcanic Activity Report, 11 June-17 June 2026. Smithsonian Institution and USGS.Marapi (Western Sumatra, Indonesia): (18 Jun) The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that eruptive activity at Marapi (on Sumatra) continued during 11-17 June. An eruptive event at 0302 on 11 June generated a brown ash plume that rose about 2.4 km above the crater rim and drifted NE. The Alert Level remained at 2 (on a scale of 1-4) and the public was warned to stay 3 km away from the active crater.Sources: Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM) ... [read more] ... [show less] ---Global Volcanism Program, 2026. Report on Marapi. In: Mayberry, G (ed.), Weekly Volcanic Activity Report, 11 June-17 June 2026. Smithsonian Institution and USGS.Dempo (Sumatra): (18 Jun) The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that a phreatic eruption at Dempo was recorded at 0747 on 12 June which seismic data showed lasted just over a minute. A diffuse white plume rose 50 m above the crater rim and drifted NW. The Alert Level remained at 2 (on a scale of 1-4), and the public were reminded to stay 1 km away from the crater and as far as 2 km on the N flank.Sources: Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM) ... [read more] ... [show less] ---Global Volcanism Program, 2026. Report on Dempo. In: Mayberry, G (ed.), Weekly Volcanic Activity Report, 11 June-17 June 2026. Smithsonian Institution and USGS.Dukono (Halmahera): (19 Jun) 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: VA TO FL070 OBS AT 19/0410Z MOV NE EST VA DTG:19/0420Z to 7000 ft (2100 m)...18 Jun:The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that eruptive activity at Dukono continued during 11-17 June. Daily white-to-gray ash plumes rose 300-1,400 m above the summit and drifted E, NE, and NW. The Alert Level remained at Level 2 (on a scale of 1-4) and the public was warned to stay 4 km away from the Malupang Warirang Crater.Sources: Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM) ... [read more] ... [show less] ---Global Volcanism Program, 2026. Report on Dukono. In: Mayberry, G (ed.), Weekly Volcanic Activity Report, 11 June-17 June 2026. Smithsonian Institution and USGS.Kilauea (Hawai'i): (18 Jun) The Hawaiian Volcano Observatory (HVO) reported that the eruption within Kilauea’s Kaluapele summit caldera, characterized by episodic fountaining, incandescence, and intermittent spatter from craters along the SW margin of Halema’uma’u Crater, continued at variable levels during 10-17 June. Robust gas plumes rose from both the N and S vents during 11-13 June. Bright and continuous incandescence persisted at the S vent and flames likely caused by the ignition of volcanic gases escaping the vent were periodically observed.Incandescence at the N vent was continuous and intensified. Minor spatter at the S vent was observed during 12-13 June and there were 10 periods of jetting lasting 2-3 minutes each overnight during 13-14 June. ... [read more] ... [show less] Low dome fountains, 3-5 m high, began at the N vent at 0410 on 14 June and produced a short lava flow. The flow stagnated and the lava drained back into the vent at 0430. HVO raised the Volcano Alert Level to Watch (the second highest level on a four-level scale) and the Aviation Color Code to Orange (the second highest color on a four-color scale) at 0447.A second overflow at the N vent began at 0559 and ended at 0704. A total of eight short (less than 7 minutes each) lava overflows at the S vent occurred during 0634-0912. Dome fountaining at the N vent began at 0814 and steadily grew in vigor and height until it transitioned into a taller fountain at 0936.Great Sitkin (United States, Aleutian Islands): (18 Jun) The Alaska Volcano Observatory (AVO) reported that slow lava effusion continued to feed a thick flow in Great Sitkin’s summit crater during 10-17 June. A satellite image acquired on 11 June confirmed that slow growth was concentrated along the E margin and that the dome continued to produce rockfalls. Seismicity was low with occasional small volcanic earthquakes and signals indicating the minor rockfalls.Weather clouds often prevented webcam and satellite observations, though slightly elevated surface temperatures were visible in satellite images during 12-14 June. The Volcano Alert Level remained at Watch (the third level on a four-level scale) and the Aviation Color Code remained at Orange (the third color on a four-color scale). ... [read more] ... [show less] Sources: Source: US Geological Survey Alaska Volcano Observatory (AVO)---Popocatépetl (Central Mexico): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: OCNL VA EMSSantiaguito (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: NEW VA EMS to 14000 ft (4300 m)Fuego (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: FRQT VA EMS to 14000 ft (4300 m)Puracé (Colombia): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS RPRTD...18 Jun:The Servicio Geologico Colombiano (SGC) reported ongoing low-level eruptive activity at Puracé during 9-15 June. Seismic activity associated with rock fracturing processes and hybrid events were mainly located beneath Piocollo and Puracé volcanoes at depths of 1-3 km; the level of seismicity slightly increased compared to the previous week. A thermal anomaly continued to be detected in satellite images within the crater of Puracé and in the fumarolic field along its outer rim.Sulfur dioxide emissions rates persisted. A slow rate of deformation was detected between Puracé, Piocollo, and Curiquinga volcanoes. Signals associated with fluid movement and emissions increased. ... [read more] ... [show less] The signals were located beneath Puracé at depths less than 3 km. Gas-and-ash emissions were more frequent during 10-12 June, prompting the release of a special bulletin. The plumes rose as high as 1.5 km above the summit and drifted NW and NE.Ashfall was reported in the rural communities of Hato Viejo (12 km WNW), Ambiró, Patico, Pululó, Chapío (9 km NW), Cristales, Campamento, 20 de Julio, Anambío, Loma Linda, the municipal seat of Coconuco (Puracé municipality), and from certain sectors of the city of Popayán. The Alert Level remained at Yellow (the second lowest level on a four-color scale).Sangay (Ecuador): (18 Jun) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 22000 ft (6700 m) altitude or flight level 220 .The full report is as follows: NEW VA EM to 22000 ft (6700 m)Reventador (Ecuador): 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: ONGOING VA EMS to 14000 ft (4300 m)Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 22000 ft (6700 m) altitude or flight level 220 .The full report is as follows: INTERMITTENT EMISSIONS to 22000 ft (6700 m)...18 Jun:The Instituto Geofísico del Perú’s (IGP) Centro Vulcanológico Nacional (CENVUL) reported continuing eruptive activity at Sabancaya during 8-14 June. The seismic network detected 65 seismic events related to the movement of magmatic fluids and additional earthquakes indicating rock fracturing. Gas, steam, and ash plumes periodically rose as high as 2 km above the crater rim and drifted less than 10 km NE, E, and SE.Thermal anomalies on the crater floor were identified in satellite images and moderate sulfur dioxide emissions averaged 881 tons per day. The Alert Level remained at Orange (the third level on a four-color scale) and the public was warned to stay outside of a 12 km radius from the summit. ... [read more] ... [show less] Sources: Source: Instituto Geofísico del Perú (IGP)---Nevados de Chillán (Central Chile): (18 Jun) The Servicio Nacional de Geología y Minería (SERNAGEOMIN), Servicio Nacional de Prevención y Respuesta ante Desastres (SENAPRED), and the Servicio Geológico Minero Argentino (SEGEMAR) reported ash plumes at Nevados de Chillán. Beginning at the end of February, the seismic network recorded a sustained increase in signals indicating fluid movement. A tremor signal at 0820 on 15 June was associated with an ash plume at Nicanor Crater that rose 120 m above the crater rim and a long-period signal at 0855 was associated with an ash plume that rose 80 m above the crater rim; both plumes drifted SE.At least three more ash emissions were recorded the same day, rising as high as 160 m above the crater rim and drifting SE. SERNAGEOMIN raised the Alert Level to Yellow (the second lowest level on a four-color scale) at 1818 and SENAPRED declared an “Early Preventive Alert” for Pinto and Coihueco. SEGEMAR also raised the Alert Level to Yellow (the second lowest level on a four-color scale). ... [read more] ... [show less] Sources: Sources: Servicio Nacional de Geología y Minería (SERNAGEOMIN), Sistema y Servicio Nacional de Prevención y Repuesta Ante Desastres (SENAPRED), Servicio Geológico Minero Argentino (SEGEMAR)---Volcano Activity Summary for 19 Jun 2026: