Map of today's active volcanoesEtna (Sicily, Italy): (23 Jul) The Sezione di Catania - Osservatorio Etneo (INGV) reported eruptive activity at Etna’s summit craters during 13-19 July characterized by gas emissions rising along the fissure between Voragine Crater (VOR) and Northeast Crater (NEC), gas emissions rising from Southeast Crater, and explosive activity at both NEC and Bocca Nuova Crater (BN). INGV staff conducted field surveys on 16 and 18 July and observed sporadic explosions at NEC and yellowish-brown ash emissions rising from the W vent in BN. Ash emissions at BN became nearly continuous during 18-19 July with grayish-brown plumes rising several hundred meters above the summit.A notably energetic event at 1807 on 19 July produced a gray ash cloud that rose 300 m above the vent. The Alert Level remained at Yellow (the second lowest level on a four-level scale) according to the Dipartimento della Protezione Civile. ... [read more] ... [show less] Sources: Source: Sezione di Catania - Osservatorio Etneo (INGV)---Sheveluch (Kamchatka): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 35000 ft (10700 m) altitude or flight level 350 and is moving at 20 kts in N direction.The full report is as follows: POSS ERUPTION OBS AT 20260724/1930Z FL350 EXTD N OBS VA DTG:24/1950Z to 35000 ft (10700 m)...23 Jul:The Kamchatkan Volcanic Eruption Response Team (KVERT) reported continuing lava effusion and explosive activity at the lava domes along the N crater floor of Young Sheveluch (on the SW flank of Old Sheveluch) during 16-22 July. A thermal anomaly was identified in satellite images on all or most days. Explosions at 0045 on 16 July produced ash plumes that rose 6.5 km (21,300 ft) a.s.l. and drifted 1,300 km SE.Ash plumes from explosions the next day rose 8.8 km (28,900 ft) a.s.l. and drifted 200 km E at 2040 on 17 July. Explosions at 0915 on 20 July generated ash plumes that rose 10.5 km (34,500 ft) a.s.l. and drifted 750 km E. ... [read more] ... [show less] The Aviation Color Code remained at Orange (the second highest level on a four-color scale). Dates are based on UTC; specific events are in local time where noted.Sources: Source: Kamchatkan Volcanic Eruption Response Team (KVERT)Kuchinoerabu-jima (Ryukyu Islands): (23 Jul) The Japan Meteorological Agency (JMA) reported that further analysis of seismic data at Kuchinoerabujima from 9 July and results from field visits indicated that there likely was no increase in volcanic unrest. At 1550 on 17 July the Alert Level was lowered to 1 (on a scale of 1-5).Sources: Source: Japan Meteorological Agency (JMA) ... [read more] ... [show less] ---Global Volcanism Program, 2026. Report on Kuchinoerabujima. In: Mayberry, G (ed.), Weekly Volcanic Activity Report, 16 July-22 July 2026. Smithsonian Institution and USGS.Sakurajima (Kyushu, Japan): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTED AT 20260724/1526Z FL080 EXTD NW OBS VA DTG:24/1530Z...23 Jul:The Japan Meteorological Agency (JMA) reported ongoing eruptive activity at Minamidake Crater (Aira Caldera’s Sakurajima volcano) during 13-20 July. Volcanologists conducted a field survey on 13 July and measured high sulfur dioxide emissions, averaging 2,200 tons per day. That same day ash plumes rose as high as 1.7 km above the summit and drifted N and NE.Crater incandescence was visible in webcam images during 13-17 July. Very small eruptive events were recorded during 17-20 July. 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)---Kanlaon (Central Philippines): (23 Jul) The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported continuing eruptive activity at Kanlaon during 16-22 July. The seismic network recorded 8-36 daily volcanic earthquakes; the counts included 1-3 daily periods of tremor on most days, lasting 28 minutes to four hours and 43 minutes. Sulfur dioxide emissions ranged from 625 to 1,914 tonnes per day.Volcanic emissions rose 300-900 m above the summit and drifted in multiple directions. 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. ... [read more] ... [show less] Sources: Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)---Taal (Luzon, Philippines): (23 Jul) The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported eruptive activity at Taal during 16-22 July. The seismic network recorded 0-10 daily volcanic earthquakes during 16-21 July, including daily periods of volcanic tremor that lasted as short as one minute to as long as eight hours. Daily gas-and-steam emissions generally rose as high as 900 m above the crater rim and drifted NE and E.Minor phreatomagmatic eruptions lasted for 2.5 minutes on 16 July and one minute on 17 July. Sulfur dioxide emissions averaged 129 tonnes per day (t/d) on 20 July. Two minor phreatomagmatic eruptions occurred on 21 July. ... [read more] ... [show less] One of them, recorded during 2009-2013, ejected jets of ash and steam-rich plumes that rose 2.8 km above the crater rim and drifted SE. On 22 July there were 61 volcanic earthquakes and three periods of volcanic tremor lasting 1-31 minutes. Sulfur dioxide emissions averaged 741 t/d and steam-and-gas plumes rose as high as 800 m above the crater rim and drifted SW.The Alert Level remained at 1 (on a scale of 0-5); PHIVOLCS reminded the public that the entire Taal Volcano Island (TVI) was a Permanent Danger Zone (PDZ) and recommended that the Main Crater and areas along the Daang Kastila fissure should remain prohibited. Pilots were warned to avoid flying over TVI.Mayon (Luzon Island, Philippines): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20260724/1654Z VA CLD UNKNOWN REPORTED OBS VA DTG:24/1700Z...23 Jul:The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption at Mayon continued during 16-22 July, characterized by lava effusion, periodic pyroclastic density currents (PDCs), incandescent rockfalls, and occasional ash-and-gas plumes. Emissions were visible daily rising as high as 2 km above the summit and drifting SSE, SSW, and W. Each day the seismic network recorded 18-314 rockfalls, and a decreasing number of daily volcanic earthquakes from as many as 196 on 16 July to as few as 4 on 22 and 23 July.The earthquake counts included 3-51 daily periods of volcanic tremor lasting 1-54 minutes during 16-19 July. A total of 16 PDCs occurred on 16 July, one occurred on 18 July, and four were recorded on 19 July. Daily measurements of sulfur dioxide emissions averaged 912-4,814 tonnes per day. ... [read more] ... [show less] The lava flows did not advance in the Mi-isi (S), Bonga (SE), and Basud (E) drainages, remaining 1.8, 3.2, and 3.8 km long, respectively.Sources: Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)Langila (New Britain, Papua New Guinea): (24 Jul) 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 24/0650Z MOV N OBS VA DTG:24/0650Z to 7000 ft (2100 m)Ulawun (New Britain, Papua New Guinea): (24 Jul) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 12000 ft (3700 m) altitude or flight level 120 .The full report is as follows: VA TO FL120 OBS TO FL120 AT 24/0020Z MOV E OBS VA DTG:24/0020Z to 12000 ft (3700 m)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 TO FL070 OBS MOV NE AT 24/1140Z OBS VA DTG:24/1140Z to 7000 ft (2100 m)...23 Jul:The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that activity at Ibu continued during 16-22 July, with daily eruptive events recorded by the seismic network. Daily gray or white-to-gray ash plumes rose 200-800 m above the summit and drifted E, NE, and NW. Incandescence at the summit was visible in some 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): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA LAST REPORTED AT 24/1334Z MOV NW EST VA DTG:24/1640Z...23 Jul:The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that eruptive activity continued at Lewotobi Laki-Laki during 16-22 July. Multiple daily gray ash plumes rose 200-1,600 m above the summit and drifted in various directions. Incandescence in the plume was visible in a webcam image at 0042 on 18 July.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): (23 Jul) The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported ongoing eruptive activity at Lewotolok during 16-22 July. Daily white plumes rose as high as 200 m above the summit. Gray ash plumes rose 500-600 m above the summit and drifted W, SW, and SE during 16-17 July.A nighttime webcam image showed incandescent material being ejected above the summit and onto the flanks at 2103 on 17 July. 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)---Krakatau (Sunda Strait, Indonesia): (24 Jul) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin 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 TO FL050 OBS AT 24/0750Z MOV NW OBS VA DTG:24/0750Z to 5000 ft (1500 m)...23 Jul:The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that an eruption at Krakatau continued during 16-22 July. White, gray, and/or black ash plumes rose as high as 200 m above the summit and drifted in multiple directions during 16 and 19-20 July. Incandescence was visible at night on 11 July.White plumes rose up to 100 m above the summit on the other days. The Alert Level remained at 3 (on a scale of 1-4), and the public was warned to stay 3 km away from the active crater. ... [read more] ... [show less] Sources: Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)---Merapi (Central Java, Indonesia): (23 Jul) The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that the eruption at Merapi (on Java) continued during 16-22 July with daily lava avalanches produced by the active lava dome on the upper SW flank. There were 8-14 daily lava avalanches that traveled as far as 2 km down the Sat/Putih drainage on the W flank during 17-19 and 22 July. As many as 14 lava avalanches descended the Boyong drainage (S flank) as far as 2 km on 20 July.One pyroclastic flow was detected on 22 July. 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. ... [read more] ... [show less] Sources: Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)---Semeru (East Java, Indonesia): (24 Jul) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: ERUPTION REPORTED AT 24/0211Z EST VA DTG:24/0710Z...23 Jul:The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that activity continued at Semeru during 16-22 July, with daily eruptive events recorded by the seismic network. White-to-gray or gray ash plumes rose 500-1,100 m above the summit and drifted N, NE, SE, and S on most days. Two pyroclastic flows descended the SE flank during 1-17 July based on instrumental data and visual observations.An eruption at 0621 on 18 July was followed by a pyroclastic flow that descended the SE flank as far as 3.5 km. Weather clouds obscured views during 21-22 July. 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 Jonggring Saloko Crater 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. ... [read more] ... [show less] Sources: Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)---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 and is moving at 10 kts in NE direction.The full report is as follows: VA TO FL070 OBS AT 24/1810Z EXTD NE OBS VA DTG:24/1810Z to 7000 ft (2100 m)...23 Jul:The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that eruptive activity at Dukono continued during 16-22 July. Daily white plumes rose as high as 200 m above the summit and drifted in multiple directions. At 0650 on 16 July a white-and-gray ash plume rose 2.1 km above the summit and drifted N.White-and-gray ash plumes rose 100-500 m above the summit and drifted NE and E during 17 and 20-22 July. 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. ... [read more] ... [show less] Sources: Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)---Aoba (Vanuatu): (23 Jul) The Wellington Volcanic Ash Advisory Center (VAAC) reported that ash-and-gas plumes at Ambae were identified in satellite and webcam views during 15 and 18-20 July rising 2.7-4.3 km (9,000-14,000 ft) a.s.l. and drifting SE, S, and SW. The plumes were brown on 19 July.The same day some flights were disrupted or canceled according to a government source. The Alert Level remained at 3 (on a scale of 0-5), and the public was warned to stay outside of Danger Zone B, defined as a 3-km radius around the active vents in Lake Voui, and to stay away from drainages during heavy rains. ... [read more] ... [show less] Sources: Sources: Wellington Volcanic Ash Advisory Center (VAAC), Vanuatu Meteorology and Geohazards Department (VMGD), Australian High Commission in Port Vila, Vanuatu---Kilauea (Hawai'i): (23 Jul) 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 15-22 July. Gas plumes rose from both the N and S vents and drifted SW though the week. Nighttime incandescence was persistent at both vents, though it was stronger at the S vent and intermittent at the N vent.Flames, likely caused by the ignition of volcanic gases, were visible at both vents during 15-18 July and only at the S vent during the rest of the week. The Volcano Alert Level remained at Advisory (the second lowest level on a four-level scale) and the Aviation Color Code remained at Yellow (the second lowest color on a four-color scale). ... [read more] ... [show less] Sources: Source: US Geological Survey Hawaiian Volcano Observatory (HVO)---Ahyi (United States, Mariana Islands): (23 Jul) The US Geological Survey reported that small plumes of discolored water around the Ahyi Seamount had been intermittently identified in satellite images over the last few months, though recent ones had more discrete plume shapes suggesting more vigorous activity. Plumes on 1, 7, and 11 July drifted less than 500 m from the vent area. No signals were detected in data from underwater pressure sensors near Wake Island (about 2,270 km E of Ahyi).The plumes were likely the result of gas released into the water column and could reflect either vigorous hydrothermal degassing or be associated with an ongoing effusive eruption. At 1013 on 16 July the Aviation Color Code was raised to Yellow (the second lowest level on a four-color scale) and the Volcano Alert Level was raised to Advisory (the second lowest level on a four-level scale). ... [read more] ... [show less] Sources: Source: US Geological Survey---Great Sitkin (United States, Aleutian Islands): (23 Jul) The Alaska Volcano Observatory (AVO) reported that slow lava effusion continued to feed a thick flow in Great Sitkin’s summit crater during 15-22 July. The flow advanced ESE based on radar satellite data. Seismicity was minor and likely associated with rockfalls on the growing dome.Elevated surface temperatures were identified on most days and webcam and satellite images showed minor steaming from the dome during 18-19 July. 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)---Atka (United States, Aleutian Islands): (23 Jul) The Alaska Volcano Observatory (AVO) reported that a small phreatic explosion originating at Korovin’s summit crater lake within the Atka Volcanic Complex was detected in seismic and infrasound data at 0355 on 16 July. No emissions were identified in satellite images, but regional weather clouds obscured views below 3 km (10,000 ft) a.s.l.; an ash plume generated by a small explosion would be expected to be small and dissipate quickly. Elevated seismicity declined immediately after the event.The Volcano Alert Level was raised to Advisory (the second lowest level on a four-level scale) and the Aviation Color Code was raised to Yellow (the second lowest color on a four-color scale) at 0503. Typical elevated temperatures at the crater lake were seen in clear overnight satellite images during 18-19 July. Unrest declined; at 1208 on 21 July the Volcano Alert Level was lowered to Normal and the Aviation Color Code was lowered to Green. ... [read more] ... [show less] Sources: Source: US Geological Survey Alaska Volcano Observatory (AVO)---Popocatépetl (Central Mexico): 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 EMS OBS IN SAT. to 20000 ft (6100 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: FRQ VA EM to 14000 ft (4300 m)Rincón de la Vieja (Costa Rica): (23 Jul) The Observatorio Vulcanologico y Sismologico de Costa Rica-Universidad Nacional (OVSICORI-UNA) reported minor eruptive events at Rincón de la Vieja during 16-22 July. At around 2103 on 19 July a phreatic eruption lasting 30 seconds generated lahars on the N flank. At 0115 on 23 July seismic and acoustic signals were recorded for about 30 seconds, with the acoustic data showing two pulses, a smaller one followed by a larger one.Webcams could not be checked to verify any eruptive activity. The Alert Level remained at Level 2, Yellow, the second lowest level on a four-level scale. ... [read more] ... [show less] Sources: Source: Observatorio Vulcanologico y Sismologico de Costa Rica-Universidad Nacional (OVSICORI-UNA)---Puracé (Colombia): 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 EMS OBS to 19000 ft (5800 m)...23 Jul:The Servicio Geologico Colombiano (SGC) reported ongoing low-level eruptive activity at Puracé during 14-20 July. Seismic activity associated with rock fracturing processes continued at similar levels compared to the previous week with signals mainly located between Piocollo and Puracé volcanoes at depths of 1-3 km and magnitudes below 1.6. A thermal anomaly continued to be detected in satellite images within the crater of Puracé and Curiquinga and in the fumarolic field along the outer rim of Puracé.Sulfur dioxide emissions persisted and slow deformation continued between Puracé, Piocollo, and Curiquinga volcanoes. Signals associated with fluid movement and emissions were ongoing from beneath Puracé at depths less than 3 km. Gas-and-ash emissions occurred at around the same frequency as the previous week, though they rose higher; the tallest plume rose 2.8 km above the crater rim. ... [read more] ... [show less] Ashfall was reported in the rural communities of Hato Viejo (12 km WNW), Cristales, Río Negro (20 km SW), 20 de Julio, Alto Anambío (7 km NNW), and Popayán (28 km NW) during 18-20 July. The Alert Level remained at Yellow (the second lowest level on a four-color scale).Sources: Source: Servicio Geológico Colombiano (SGC)Reventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS PSBLSabancaya (Peru): (23 Jul) The Instituto Geofísico del Perú’s (IGP) Centro Vulcanológico Nacional (CENVUL) reported continuing eruptive activity at Sabancaya during 13-19 July. The seismic network detected 47 seismic events related to the movement of magmatic fluids, along with additional earthquakes indicating rock fracturing. Gas, steam, and ash plumes periodically rose as high as 1 km above the crater rim and drifted less than 10 km E and SE.Thermal anomalies on the crater floor were identified in satellite images and moderate sulfur dioxide emissions averaged 732 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)---Volcano Activity Summary for 24 Jul 2026: