Satellite image of Semeru volcano on 22 Aug 2025
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 22 Aug 2025 Number in brackets indicate nr of quakes.Quakes detected near: Abu (16 quakes between mag 0.1-1.4), Agua (1 quake mag 2.3), Bardarbunga (1 quake mag 2.0), Brennisteinsfjöll (5 quakes between mag 0.1-1.3), Cabalian (5 quakes between mag 1.6-2.3), Campi Flegrei (Phlegrean Fields) (4 quakes between mag 0.2-3.0)Cerro Singüil (5 quakes between mag 2.4-2.7), Clear Lake (24 quakes between mag 0.2-2.3), Granada (1 quake mag 2.7), Grímsnes (1 quake mag 3.0), Ijen (1 quake mag 2.9), Isarog (1 quake mag 3.0), Jaraguay (1 quake mag 3.0), Kenger (1 quake mag 1.3), Klyuchevskoy (12 quakes between mag 0.7-1.1), Kolumbo…
Worldwide earthquakes above magnitude 3 during the past 24 hours on 22 Aug 2025Summary: 5 quakes 5.0+, 45 quakes 4.0+, 186 quakes 3.0+, 415 quakes 2.0+ (651 total)Today’s seismic activity was relatively moderate but varied across regions. In Indonesia, a magnitude-4.9 quake near Bekasi rattled Jakarta and surrounding areas Wednesday night, though no damage or casualties were immediately reported (Tempo). In the United States, a 4.1-magnitude tremor struck near Fairbanks, Alaska around noon, with preliminary reports indicating little to no disruption (VolcanoDiscovery). In Russia’s Far East, a magnitude-5.2 earthquake occurred near Shikotan, Sakhalin Oblast; based on available data, no significant damage was noted (VolcanoDiscovery). Southeast Asia also saw activity: near Yangon, Myanmar, two quake —magnitude-5.0 early evening and a 5.2-magnitude…
World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 21 Aug 2025 Number in brackets indicate nr of quakes.Quakes detected near: Abu (12 quakes between mag 0.1-1.3), Agua (1 quake mag 2.3), Akita-Yake-yama (3 quakes between mag 0.4-1.0), Bardarbunga (3 quakes between mag 0.6-2.0), Brennisteinsfjöll (7 quakes between mag 0.1-1.3), Cabalian (5 quakes between mag 1.6-2.3)Campi Flegrei (Phlegrean Fields) (5 quakes between mag 0.1-3.0), Cerro Singüil (6 quakes between mag 2.4-2.7), Clear Lake (28 quakes between mag 0.2-2.3), El Chichón (1 quake mag 2.7), Granada (1 quake mag 2.7), Grímsnes (1 quake mag 3.0), Ijen (1 quake mag 2.9), Isarog (1 quake mag 3.0), Jaraguay (1 quake mag…
Just 10 minutes ago, a 5.3-magnitude earthquake struck near Ofunato, Ōfunato-shi, Iwate, Japan. The tremor was recorded in the morning on Friday, August 22nd, 2025, at 7:34 am local time, at a moderately shallow depth of 44. km below the surface.The event was filed by the European-Mediterranean Seismological Centre (EMSC), the first seismological agency to report it.Our monitoring service identified a second report from the citizen-seismograph network of RaspberryShake which listed the quake at magnitude 5.3 as well. Other agencies reporting the same quake include the German Research Centre for Geosciences (GFZ) at magnitude 5.3, France's Réseau National de Surveillance Sismique (RéNaSS) at magnitude 5.4, and Japan's National Research Institute for Earth Science and Disaster Resilience (NIED) at magnitude 5.9.Generally…
Map of today's active volcanoesEtna (Sicily, Italy): (21 Aug) A new eruptive fissure opened on the southern flank of the Southeast Crater at about 13:40 local time yesterday.A new lava flow effuses from an altitude of 3,200 meters above sea level towards the southwest. ... [read more] ... [show less] The lava flow eruption from two vents at altitudes of 3,100 and 2,980 meters above sea level continues.Strombolian explosions from the Southeast Crater continue, accompanied by ash emissions.Sakurajima (Kyushu, Japan): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: EXPLODED AT 20250821/2021Z OVER FL060 EXTD SE OBS VA DTG:21/2010Z...21 Aug:The Japan Meteorological Agency (JMA) reported that the eruption continued at Aira between 18 August 2025 (local) and 20 August…
Satellite image of Sakurajima volcano on 21 Aug 2025
The United States Geological Survey; United States Geological Survey - Alaska Volcano Observatory (USGS; USGS-AVO) reported that unrest activity decreased at Spurr between 19 August 2025 (local) and 20 August 2025 (local). The alert level at Spurr was lowered to "Normal" (level 1 on a 4-level scale). The aviation alert level was lowered to "Green" (level 1 on a 4-level scale). Source: United States Geological Survey (USGS); United States Geological Survey - Alaska Volcano Observatory (USGS-AVO)Current Alerts:Observatory alert level: "Normal" (level 1 on a 4-level scale)Aviation Alert Level: "Green" (level 1 on a 4-level scale)Adapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Centro Vulcanológico Nacional del Instituto Geofísico del Perú (CENVUL-IGP) reported that unrest continued at Sabancaya between 19 August 2025 (local) and 20 August 2025 (local). The alert level at Sabancaya remained at "Yellow" (level 2 on a 4-level scale). Source: Centro Vulcanológico Nacional del Instituto Geofísico del Perú (CENVUL-IGP)Current Alerts:Observatory alert level: "Yellow" (level 2 on a 4-level scale)Aviation Alert Level: unavailable or not collectedAdapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The GeoNet (GeoNet) reported that unrest continued at Ruapehu between 22 July 2025 (local) and 20 August 2025 (local). The alert level at Ruapehu remained at "1 - Minor volcanic unrest" (level 1 on a 0–5 level scale). The aviation alert level remained at "Green" (level 1 on a 4-level scale). Source: GeoNet (GeoNet)Current Alerts:Observatory alert level: "1 - Minor volcanic unrest" (level 1 on a 0–5 level scale)Aviation Alert Level: "Green" (level 1 on a 4-level scale)Adapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that unrest continued at Pacaya between 19 August 2025 (local) and 20 August 2025 (local). The alert level at Pacaya was unavailable or not collected. Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH)Current Alerts:Observatory alert level: unavailable or not collectedAviation Alert Level: unavailable or not collectedAdapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Japan Meteorological Agency (JMA) reported that unrest activity increased at Kusatsu-Shiranesan between 19 August 2025 (local) and 20 August 2025 (local). The alert level at Kusatsu-Shiranesan remained at "Level 2 - Restriction on proximity to the crater" (on a 5-level scale). Source: Japan Meteorological Agency (JMA)Current Alerts:Observatory alert level: "Level 2 - Restriction on proximity to the crater" (on a 5-level scale)Aviation Alert Level: unavailable or not collectedAdapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Karangetang on 20 August 2025 (local). The alert level at Karangetang remained at "Level 2 - Alert" (on a 4-level scale). Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)Current Alerts:Observatory alert level: "Level 2 - Alert" (on a 4-level scale)Aviation Alert Level: unavailable or not collectedAdapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Telong, Bur ni on 20 August 2025 (local). The alert level at Telong, Bur ni remained at "Level 2 - Alert" (on a 4-level scale). Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)Current Alerts:Observatory alert level: "Level 2 - Alert" (on a 4-level scale)Aviation Alert Level: unavailable or not collectedAdapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Kamchatkan Volcanic Eruption Response Team (KVERT) reported that the eruption continued at Sheveluch on 20 August 2025 (local). The aviation alert level at Sheveluch remained at "Orange" (level 3 on a 4-level scale). Source: Kamchatkan Volcanic Eruption Response Team (KVERT)Current Alerts:Observatory alert level: unavailable or not collectedAviation Alert Level: "Orange" (level 3 on a 4-level scale)Adapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Semeru on 20 August 2025 (local). The alert level at Semeru remained at "Level 2 - Alert" (on a 4-level scale). The aviation alert level remained at "Orange" (level 3 on a 4-level scale). There were 42 explosions reported, with plumes rising to a maximum of 800 meters (2,625 feet) above the vent. There were 2 seismically detected rockfalls. Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)Current Alerts:Observatory alert level: "Level 2 - Alert" (on a 4-level scale)Aviation Alert Level: "Orange" (level 3 on a 4-level scale)Adapted from: Smithsonian / USGS Daily Volcanic Activity Report for…
The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Santa María between 19 August 2025 (local) and 20 August 2025 (local). The alert level at Santa María was unavailable or not collected. Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH)Current Alerts:Observatory alert level: unavailable or not collectedAviation Alert Level: unavailable or not collectedAdapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that eruptive activity decreased at Sangay between 19 August 2025 (local) and 20 August 2025 (local). The alert level at Sangay remained at "2 - Yellow" (on a 4-level scale). There were 74 seismically detected explosions reported. Plumes rose to a maximum of 800 meters (2,625 feet) above the vent. There were observed incandescent rockfalls. Source: Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN)Current Alerts:Observatory alert level: "2 - Yellow" (on a 4-level scale)Aviation Alert Level: unavailable or not collectedAdapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Reventador between 19 August 2025 (local) and 20 August 2025 (local). The alert level at Reventador remained at "3 - Orange" (on a 4-level scale). There were 77 seismically detected explosions reported. Plumes rose to a maximum of 1,000 meters (3,281 feet) above the vent. There were observed incandescent rockfalls. Source: Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN)Current Alerts:Observatory alert level: "3 - Orange" (on a 4-level scale)Aviation Alert Level: unavailable or not collectedAdapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Merapi on 20 August 2025 (local). The alert level at Merapi remained at "Level 3 - Standby" (on a 4-level scale). Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)Current Alerts:Observatory alert level: "Level 3 - Standby" (on a 4-level scale)Aviation Alert Level: unavailable or not collectedAdapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Marapi on 20 August 2025 (local). The alert level at Marapi remained at "Level 2 - Alert" (on a 4-level scale). Plumes rose to a maximum of 150 meters (492 feet) above the vent. Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)Current Alerts:Observatory alert level: "Level 2 - Alert" (on a 4-level scale)Aviation Alert Level: unavailable or not collectedAdapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Lewotolok on 20 August 2025 (local). The alert level at Lewotolok remained at "Level 3 - Standby" (on a 4-level scale). There were 205 explosions reported, with plumes rising to a maximum of 600 meters (1,969 feet) above the vent. Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)Current Alerts:Observatory alert level: "Level 3 - Standby" (on a 4-level scale)Aviation Alert Level: unavailable or not collectedAdapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Lewotobi (Laki-Laki) on 20 August 2025 (local). The alert level at Lewotobi (Laki-Laki) remained at "Level 4 - Caution" (on a 4-level scale). Plumes rose to a maximum of 300 meters (984 feet) above the vent. There were 3 seismically detected rockfalls. Crater incandescence was observed. Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)Current Alerts:Observatory alert level: "Level 4 - Caution" (on a 4-level scale)Aviation Alert Level: unavailable or not collectedAdapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Kamchatkan Volcanic Eruption Response Team (KVERT) reported that the eruption continued at Krasheninnikov on 20 August 2025 (local). The aviation alert level at Krasheninnikov remained at "Orange" (level 3 on a 4-level scale). Source: Kamchatkan Volcanic Eruption Response Team (KVERT)Current Alerts:Observatory alert level: unavailable or not collectedAviation Alert Level: "Orange" (level 3 on a 4-level scale)Adapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Kamchatkan Volcanic Eruption Response Team (KVERT) reported that eruptive activity decreased at Klyuchevskoy on 20 August 2025 (local). The aviation alert level at Klyuchevskoy was lowered to "Green" (level 1 on a 4-level scale). At 2318 on 20 August, KVERT lowered the Aviation Color Code. Source: Kamchatkan Volcanic Eruption Response Team (KVERT)Current Alerts:Observatory alert level: unavailable or not collectedAviation Alert Level: "Green" (level 1 on a 4-level scale)Adapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Kamchatkan Volcanic Eruption Response Team (KVERT) reported that the eruption continued at Karymsky on 20 August 2025 (local). The aviation alert level at Karymsky remained at "Orange" (level 3 on a 4-level scale). Source: Kamchatkan Volcanic Eruption Response Team (KVERT)Current Alerts:Observatory alert level: unavailable or not collectedAviation Alert Level: "Orange" (level 3 on a 4-level scale)Adapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The United States Geological Survey - Hawaiian Volcano Observatory (USGS-HVO) reported that the eruption continued at Kilauea between 19 August 2025 (local) and 20 August 2025 (local). The alert level at Kilauea remained at "Watch" (level 3 on a 4-level scale). The aviation alert level remained at "Orange" (level 3 on a 4-level scale). Source: United States Geological Survey - Hawaiian Volcano Observatory (USGS-HVO)Current Alerts:Observatory alert level: "Watch" (level 3 on a 4-level scale)Aviation Alert Level: "Orange" (level 3 on a 4-level scale)Adapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Ibu on 20 August 2025 (local). The alert level at Ibu remained at "Level 2 - Alert" (on a 4-level scale). The aviation alert level remained at "Orange" (level 3 on a 4-level scale). There were 114 explosions reported, with plumes rising to a maximum of 600 meters (1,969 feet) above the vent. Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG)Current Alerts:Observatory alert level: "Level 2 - Alert" (on a 4-level scale)Aviation Alert Level: "Orange" (level 3 on a 4-level scale)Adapted from: Smithsonian / USGS Daily Volcanic Activity Report for Aug 21, 2025
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