The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program. Updated by 2300 UTC every Thursday (changed from Wednesdays starting in January 2026) and averaging 16 reported volcanoes, this is not a comprehensive list of all eruptions this week, but rather a summary of activity that meet criteria discussed in the "Criteria and Disclaimers" section below.
Volcanic activity reported here is preliminary and subject to change. Carefully reviewed, detailed narratives over longer time periods are published as reports of the Bulletin of the Global Volcanism Network available through volcano profile pages.
| Name | Country | Volcanic Region | Eruption Start Date | Report Type |
|---|---|---|---|---|
| Iya | Indonesia | Sunda Volcanic Arc | — | New Eruptive Activity |
| Kanlaon | Philippines | Negros-Sulu Volcanic Arc | 2024 Oct 19 | New Eruptive Activity |
| Karangetang | Indonesia | Sangihe Volcanic Arc | — | New Eruptive Activity |
| Lewotobi | Indonesia | Sunda Volcanic Arc | 2026 Mar 3 | New Eruptive Activity |
| Lokon-Empung | Indonesia | Sangihe Volcanic Arc | — | New Eruptive Activity |
| Marapi | Indonesia | Sunda Volcanic Arc | 2023 Dec 3 | New Eruptive Activity |
| Paluweh | Indonesia | Sunda Volcanic Arc | — | New Eruptive Activity |
| Sheveluch | Russia | Eastern Kamchatka Volcanic Arc | 1999 Aug 15 | New Eruptive Activity |
| Taal | Philippines | Luzon Volcanic Arc | 2024 Apr 12 | New Eruptive Activity |
| Aira | Japan | Ryukyu Volcanic Arc | 2017 Mar 25 | Continuing Eruptive Activity |
| Bulusan | Philippines | Eastern Philippine Volcanic Arc | — | Continuing Eruptive Activity |
| Ebeko | Russia | Kuril Volcanic Arc | — | Continuing Eruptive Activity |
| Etna | Italy | Sicily Volcanic Province | — | Continuing Eruptive Activity |
| Fuego | Guatemala | Central America Volcanic Arc | 2002 Jan 4 | Continuing Eruptive Activity |
| Great Sitkin | United States | Aleutian Ridge Volcanic Arc | 2021 May 25 | Continuing Eruptive Activity |
| Ibu | Indonesia | Halmahera Volcanic Arc | 2008 Apr 5 | Continuing Eruptive Activity |
| Karymsky | Russia | Eastern Kamchatka Volcanic Arc | — | Continuing Eruptive Activity |
| Merapi | Indonesia | Sunda Volcanic Arc | 2020 Dec 31 | Continuing Eruptive Activity |
| Nyamulagira | DR Congo | Albertine Rift Volcanic Province | 2018 Apr 14 | Continuing Eruptive Activity |
| Sabancaya | Peru | Central Andean Volcanic Arc | 2025 Sep 13 | Continuing Eruptive Activity |
| Semeru | Indonesia | Sunda Volcanic Arc | 2019 Feb 24 | Continuing Eruptive Activity |
| Stromboli | Italy | Aeolian Volcanic Arc | 1934 Feb 2 | Continuing Eruptive Activity |
| Suwanosejima | Japan | Ryukyu Volcanic Arc | 2004 Oct 23 | Continuing Eruptive Activity |
Iya (Indonesia) | 6 November-12 November 2024 | New Eruptive Activity
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IyaSunda Volcanic Arc |
The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that daily white emissions at Iya rose as high as 300 m above the crater rim and drifted in several directions during 6-12 November. 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 area in all directions and 5 km away to the south. Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM) |
Kanlaon (Philippines) | 6 November-12 November 2024 | New Eruptive Activity
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KanlaonNegros-Sulu Volcanic Arc |
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported continuing unrest at Kanlaon during 6-12 November. Daily moderate-to-voluminous gas emissions with intermittent ash rose as high as 1 km above the summit and drifted several directions. Between 0546 and 0702 on 9 November an “ashing” event generated light gray plumes that rose 750 m above the summit and drifted SW. Trace ashfall was reported in Barangay Yubo (6.5 km WSW), La Carlota City (14 km W), Barangay Sag-ang (10 km SW), and La Castellana (16 km SW); the smell of sulfur was also reported in Yubo and Sag-ang. Microscopic examination of ash samples from events on 19 October, 2 November, and 5 November revealed that the ash is primarily old material and not from new magma. The seismic network recorded daily volcanic earthquakes, and sulfur dioxide emissions ranged from 2,125 to 7,378 tonnes per day. The Alert Level remained at 2 (on a scale of 0-5) and PHIVOLCS reminded the public to remain outside of the 4-km-radius Permanent Danger Zone and warned pilots not to fly close to the volcano. Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS) |
Karangetang (Indonesia) | 6 November-12 November 2024 | New Eruptive Activity
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KarangetangSangihe Volcanic Arc |
The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) raised the Alert Level for Karangetang to 3 (on a scale of 1-4) on 11 November due to increased seismicity recorded during 10-11 November. White plumes rose as high as 50 m above the summit. The public was advised to stay 2.5 km away from Kawah Dua (North Crater) and the Main Crater (South Crater) with an extension to 3.5 km along the W, SW, S, and SE flanks. Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM) |
Lewotobi (Indonesia) | 6 November-12 November 2024 | New Eruptive Activity
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LewotobiSunda Volcanic Arc |
The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that eruptive activity at Lewotobi Laki-laki remained at a high-level during 5-12 November, producing tall ash plumes, explosions, pyroclastic flows, and a lava flow, which all significantly affected residents, infrastructure, and transportation. The Badan Nasional Penanggulangan Bencana (BNPB) reported that as of 5 November there were 2,472 people spread across three evacuation shelters. A total of nine people had died (six from one family according to a news article) from the eruptive events that occurred during 3-4 November, 63 were injured, and five people remained in the hospital, one was critically injured. Information about damage to homes and infrastructure was incomplete because the exclusion zone and ongoing eruption prevented evaluations.
Sources: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM), Badan Nacional Penanggulangan Bencana (BNPB), Badan Nacional Penanggulangan Bencana (BNPB), Badan Nacional Penanggulangan Bencana (BNPB), Badan Nacional Penanggulangan Bencana (BNPB), Badan Nacional Penanggulangan Bencana (BNPB), Badan Nacional Penanggulangan Bencana (BNPB), Associated Press, Antara News, Antara News, Antara News, Antara News, Antara News, Antara News, Antara News, Antara News, Antara News, Antara News, Antara News, Antara News, Antara News, Antara News, Antara News, Antara News, Darwin Volcanic Ash Advisory Centre (VAAC) |
Lokon-Empung (Indonesia) | 6 November-12 November 2024 | New Eruptive Activity
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Lokon-EmpungSangihe Volcanic Arc |
The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported increased seismic activity at Lokon-Empung since 31 October. During 6-12 November daily gas-and-steam emissions rose 10-20 m above the summit and drifted multiple directions. Between 32 and 154 shallow volcanic earthquakes were recorded each day. Due to the increased activity, PVMBG raised the Alert Level from 2 to 3 (on a scale of 1-4) at 2200 on 10 November, and the public was warned to stay 3 km away from the crater. Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM) |
Marapi (Indonesia) | 6 November-12 November 2024 | New Eruptive Activity
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MarapiSunda Volcanic Arc |
The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that eruptive activity at Marapi (on Sumatra) was ongoing during 6-12 November. Almost daily white-to-gray emissions rose as high as 800 m above the summit and drifted several directions. The Alert Level remained at 3 (on a scale of 1-4) and the public was warned to stay 4.5 km from the summit crater. Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM) |
Paluweh (Indonesia) | 6 November-12 November 2024 | New Eruptive Activity
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PaluwehSunda Volcanic Arc |
The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported an increase in activity at Paluweh in the first two weeks of November. During 1-8 November there was an increase in recorded shallow volcanic earthquakes, and between 0900 and 1700 on 9 November people reported a strong sulfur odor. At 2100 on 10 November the Alert Level was raised from 1 to 2 (on a scale of 4), and the public was warned to stay 2 km away from the crater. During 10-12 November no emissions were observed, and seismicity remained about the same. Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM) |
Sheveluch (Russia) | 6 November-12 November 2024 | New Eruptive Activity
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SheveluchEastern Kamchatka Volcanic Arc |
The Kamchatkan Volcanic Eruption Response Team (KVERT) reported that during 24 October-6 November lava extrusion continued at Sheveluch’s “300 years of RAS” (Karan) dome on the SW flank of Old Sheveluch and at the dome at Young Sheveluch; activity escalated into an intense eruptive phase on 7 November. Thermal anomalies over both domes were identified in satellite images on 25, 27-28, and 31 October and 1-3 November, and over the “300 years of RAS” dome during 3-6 November. Weather conditions sometimes prevented views of the volcano.
Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Institute of Volcanology and Seismology (IVS) of the Far Eastern Branch of the Russian Academy of Sciences (FEB RAS), Interfax News |
Taal (Philippines) | 6 November-12 November 2024 | New Eruptive Activity
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TaalLuzon Volcanic Arc |
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported continued unrest at Taal during 6-12 November. Daily emissions rose as high as 1.8 km above the crater rim and drifted several directions. Volcanic tremor periods lasting 3-4 minutes each were recorded on 6 and 7 November. On 8 November the sulfur dioxide gas flux averaged 2,039 tonnes per day. The Alert Level remained at 1 (on a scale of 0-5), and PHIVOLCS reminded the public that the entire Taal Volcano Island was a Permanent Danger Zone (PDZ) and recommended that the Main Crater and areas along the Daang Kastila fissure should remain prohibited. Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS) |
Aira (Japan) | 6 November-12 November 2024 | Continuing Eruptive Activity
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AiraRyukyu Volcanic Arc |
The Japan Meteorological Agency (JMA) reported ongoing eruptive activity at Minamidake Crater (Aira Caldera’s Sakurajima volcano) during 4-11 November. Nightly crater incandescence was visible in webcam images and very small eruptive events were periodically recorded. On 7 November sulfur dioxide emissions were very high, averaging 4,700 tons per day. The Alert Level remained at 3 (on a 5-level scale), and the public was warned to stay 1 km away from both craters. |
Bulusan (Philippines) | 6 November-12 November 2024 | Continuing Eruptive Activity
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BulusanEastern Philippine Volcanic Arc |
PHIVOLCS lowered the Alert Level for Bulusan to 0 (the lowest level on a scale of 0-5) at 0800 on 12 November based on monitoring data. Based on data from the seismic network the number of volcanic earthquakes had declined to background levels (0-5 earthquakes per day) in late August, and since then earthquakes have been characterized as weak volcano-tectonic events at depths less than 10 km. The seismic patterns indicated that they may have been influenced by tectonic stresses related to a M 6.6 earthquake on 18 August 2020 along the nearby Masbate segment of the Philippine Fault Zone (PFZ). Data from continuous GPS and electronic tilt measurements showed variable inflation beneath the S and NE flanks during December 2022-September 2023; shallow hydrothermal processes may have contributed to the deformation, though movement was likely related to the PFZ. Sulfur dioxide gas emissions from summit vents were low, averaging 76 tonnes per day since October 2023. The public were reminded not to enter the 4-km-radius Permanent Danger Zone (PDZ) and to be vigilant around the vents on the SSE flank. Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS) |
Ebeko (Russia) | 6 November-12 November 2024 | Continuing Eruptive Activity
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EbekoKuril Volcanic Arc |
The Kamchatkan Volcanic Eruption Response Team (KVERT) reported that moderate explosive activity was ongoing at Ebeko during 24-31 October. According to volcanologists in Severo-Kurilsk (Paramushir Island, about 7 km E), explosions on 25 October generated ash plumes that rose as high as 2 km (6,600 ft) a.s.l. and drifted NE. Satellite data indicated that either no activity was observed, or weather conditions prevented views. The Aviation Color Code remained at Orange (the third level on a four-color scale). Dates are UTC; specific events are in local time where noted. |
Etna (Italy) | 6 November-12 November 2024 | Continuing Eruptive Activity
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EtnaSicily Volcanic Province |
Sezione di Catania - Osservatorio Etneo (INGV) reported that during 4-10 November activity at Etna was characterized by gas emissions at the summit craters and lava fountaining; weather conditions often obscured views of the summit area. Continuous emissions of gas at variable intensities rose from SE Crater and Voragine Crater in particular. During 1140-2000 on 10 November geophysical data indicated that lava fountaining was occurring at one of the summit craters; though weather conditions obscured views, fountaining was observed in a webcam image at 1244 and a significant ash emission was visible during a break in the clouds at 1550. A pilot photographed an ash plume emerging from a weather cloud deck during the morning hours. The ash plume rose as high as 9.5 km a.s.l. and drifted E, causing ashfall in Milo (11 km ESE), Fornazzo (10.5 km E), Mascali (18 km E), and Torre Archirafi (20 km ESE) beginning at 1245. |
Fuego (Guatemala) | 6 November-12 November 2024 | Continuing Eruptive Activity
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FuegoCentral America Volcanic Arc |
The Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH) reported that eruptive activity continued at Fuego during 6-12 November. Daily explosions were recorded by the seismic network at rates of 5-13 per hour. The explosions generated gas-and-ash plumes that rose 4.5-4.8 km above the summit and drifted as far as 30 km SW and W. Weak-to-moderate rumbling sounds and shock waves from explosions were occasionally reported. The explosions also generated weak-to-moderate block avalanches around the crater and sometimes descended toward the Las Lajas (SE), Seca (W), Taniluya (SSW), Honda (E), and Ceniza (SSW) drainages and sometimes reached vegetated areas. On most days, explosions ejected incandescent material up to 300 m above the summit. On 8 November rainfall in the area generated a weak-to-moderate lahar in the Ceniza drainage (SSW, a tributary of the Achíguate River), dragging a mixture of water, fine volcanic material, branches and tree trunks, as well as rock blocks 30 cm to 1.5 m in diameter. Ashfall was reported in Panimache I and II (8 km SW), Morelia (10 km SW), Santa Sofia (12 km SW), and other nearby communities on 6 November and in Panimache I and II (8 km SW), Morelia (10 km SW), Santa Sofia (12 km SW), and Los Yucales (12 km SW), and other nearby communities on 8 November. Source: Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH) |
Great Sitkin (United States) | 6 November-12 November 2024 | Continuing Eruptive Activity
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Great SitkinAleutian Ridge Volcanic Arc |
The Alaska Volcano Observatory (AVO) reported that slow lava effusion continued to feed a thick lava flow in Great Sitkin’s summit crater during 6-12 November. The lava flow had filled most of the summit crater with minor advancement in the N part of the E lobe. The local seismic network continued to detect small earthquakes associated with the ongoing eruption. The last radar image, acquired on 3 November, confirmed ongoing effusion. Slightly elevated surface temperatures were detected in satellite images that same day, but since then weather clouds obscured webcam and satellite views of the summit. 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). Source: US Geological Survey Alaska Volcano Observatory (AVO) |
Ibu (Indonesia) | 6 November-12 November 2024 | Continuing Eruptive Activity
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IbuHalmahera Volcanic Arc |
The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that activity at Ibu continued during 6-12 November. Daily gray or white-and-gray ash plumes that were often dense rose 0.5-1 km above the summit and drifted in multiple directions. Most of the webcam images posted with the reports showed incandescence visible above the crater rim. The Alert Level remained at 3 (the second highest level on a four-level scale) and the public was advised to stay 4 km away from the active crater and 5 km away from the N crater wall opening. Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM) |
Karymsky (Russia) | 6 November-12 November 2024 | Continuing Eruptive Activity
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KarymskyEastern Kamchatka Volcanic Arc |
The Kamchatkan Volcanic Eruption Response Team (KVERT) reported moderate levels of activity at Karymsky during 24-31 October. A thermal anomaly over the volcano was identified in satellite images on 27 October; the volcano was quiet or weather clouds obscured views on the other days. The Aviation Color Code remained at Orange (the third level on a four-color scale). Dates are based on UTC times; specific events are in local time where noted. |
Merapi (Indonesia) | 6 November-12 November 2024 | Continuing Eruptive Activity
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MerapiSunda Volcanic Arc |
The Balai Penyelidikan dan Pengembangan Teknologi Kebencanaan Geologi (BPPTKG) reported that the eruption at Merapi (on Java) continued during 1-7 November. Seismicity was higher compared to the previous week. The SW lava dome produced 271 lava avalanches that traveled as far as 2 km down the Bebeng drainage on the SW flank. On 3 November one pyroclastic flow descended the Bebeng as far as 1 km. Morphological changes to the SW lava dome resulted from continuing effusion and collapses of material. 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. Source: Balai Penyelidikan dan Pengembangan Teknologi Kebencanaan Geologi (BPPTKG) |
Nyamulagira (DR Congo) | 6 November-12 November 2024 | Continuing Eruptive Activity
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NyamulagiraAlbertine Rift Volcanic Province |
Satellite images in November indicated continuing activity at Nyamuragira. Large strong thermal anomalies in the main crater were visible in 2 and 12 November satellite images, even though weather clouds obscured significant portions of the crater. According to the Observatoire Volcanologique de Goma (OVG) sustained sulfur dioxide emissions identified in satellite data were as high as 7,000 tonnes per day on 7 November; gas emissions were attributed to both Nyamuragira and Nyiragongo. Sources: Copernicus, Observatoire Volcanologique de Goma (OVG) |
Sabancaya (Peru) | 6 November-12 November 2024 | Continuing Eruptive Activity
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SabancayaCentral Andean Volcanic Arc |
Instituto Geofísico del Perú (IGP) reported that the eruption at Sabancaya continued during 4-10 November with a daily average of 11 explosions. Gas-and-ash plumes rose as high as 1.7 km above the summit and drifted less than 10 km NW and W. Thermal anomalies over the lava dome in the summit crater were identified in satellite data. Slight inflation was detected N of Hualca Hualca (7 km N). Sulfur dioxide emissions were at moderate levels, averaging 842 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. |
Semeru (Indonesia) | 6 November-12 November 2024 | Continuing Eruptive Activity
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SemeruSunda Volcanic Arc |
The Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) reported that eruptive activity continued at Semeru during 6-12 November with several eruptive events each day recorded by the seismic network. Daily moderately dense to dense, white-and-gray ash plumes rose 200-1,000 m above the summit and drifted in multiple directions. Weather conditions sometimes prevented views of the summit. On 10 November the seismic network recorded a pyroclastic density current (PDC) signal that lasted almost eight minutes. The Alert Level remained at 2 (the second lowest level on a scale of 1-4). The public was warned to stay at least 5 km away from the summit in all directions, 13 km from the summit to the SE, 500 m from the banks of the Kobokan drainage as far as 17 km from the summit, and to avoid other drainages including the Bang, Kembar, and Sat, due to lahar, avalanche, and pyroclastic flow hazards. Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM) |
Stromboli (Italy) | 6 November-12 November 2024 | Continuing Eruptive Activity
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StromboliAeolian Volcanic Arc |
Sezione di Catania - Osservatorio Etneo (INGV) reported that eruptive activity continued at Stromboli during 4-10 November. Webcam images showed Strombolian activity at four vents in Area N within the upper part of the Sciara del Fuoco and from at least three vents in Area C-S (South-Central Crater) on the crater terrace. The vents in Area N continued to produce low-to-medium intensity explosions at a rate of 4-9 events per hour, ejecting lapilli and bombs less than 150 m above the vents. Spattering continued and was sometimes intense, especially on 6 and 9 November. Explosions at the vents in Area C-S ejected tephra more than 250 m above the vent at a rate of 1-3 events per hour.
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Suwanosejima (Japan) | 6 November-12 November 2024 | Continuing Eruptive Activity
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SuwanosejimaRyukyu Volcanic Arc |
The Japan Meteorological Agency (JMA) reported that eruptive activity at Suwanosejima's Ontake Crater continued during 4-11 November. Crater incandescence was observed nightly in webcam images. A period of continuous ash emissions during 1230-2204 on 4 November produced ash plumes that rose as high as 1.2 km above the crater rim and drifted SE. Eruptive events at 1115 on 6 November and 0156 on 7 November generated ash plumes that rose more than 1 km above the crater rim and drifted SE and S, respectively. The Alert Level remained at 2 (on a 5-level scale) and the public was warned to stay at least 1.5 km away from the crater. |
Since the Weekly Volcanic Activity Report began in November 2000, there have been 22,859 individual reports over 1,335 weeks (average of 17 per week) on 351 different volcanoes.
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The Weekly Volcanic Activity Report does not necessarily include all volcanic activity that occurred on Earth during the week. More than a dozen volcanoes globally have displayed essentially continuous eruptive activity for decades or longer, and such routine activity is typically not reported here. Submarine activity is reported when information is available. The Weekly Volcanic Activity Report summarizes volcanic activity that meets one or more of the following criteria:
- A volcano observatory raises or lowers the alert level at the volcano.
- A volcanic ash advisory has been released by a volcanic ash advisory center (VAAC) stating that an ash cloud has been produced from the volcano.
- A verifiable news report of new activity or a change in activity at the volcano has been issued.
- Observers have reported a significant change in volcanic activity. Such activity can include, but is not restricted to, pyroclastic flows, lahars, lava flows, dome collapse, or increased unrest.
Reports categorized as "Activity (New)" indicate eruptive activity that has occurred after at least 3 months of quiescence. Once a volcano is included in this section, updates will remain on that list unless the activity continues for more than 1 month without escalating, after which time updates will be listed in the "Activity (Continuing)" section. Reports are included in the "Unrest" sections (New or Continuing) if the volcano is undergoing non-eruptive activity such as seismicity or deformation that is unusually high for that volcano or is increasing. The "Other" category includes non-eruptive and non-unrest reports, such as Alert Level decreases or previous ash deposits resuspended by winds. Reports through 2025 were only divided into "New Activity/Unrest" and "Continuing Activity", which have been automatically converted to the "Activity (New)" and "Activity (Continuing)" groups, respectively, without a review of content that might change the category to "Unrest" or "Other".
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