Satellite image of Suwanose-jima volcano on 17 Sep 2025

Satellite image of Semeru volcano on 17 Sep 2025

The Observatorio Vulcanológico y Sismológico de Costa Rica - Universidad Nacional (OVSICORI-UNA) reported that unrest continued at Turrialba between 13 September 2025 (local) and 16 September 2025 (local). The alert level remained at "Level 2 - Warning" (on a 0–4 level scale). Source: Observatorio Vulcanológico y Sismológico de Costa Rica - Universidad Nacional (OVSICORI-UNA)Current Alerts:Observatory alert level: "Level 2 - Warning" (on a 0–4 level scale)Aviation Alert Level: unavailable or not collectedAdapted from: Smithsonian / USGS Daily Volcanic Activity Report for Sep 16, 2025

The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Lokon-Empung on 16 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 200 meters (656 feet) above the vent. The alert level 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 Sep 16, 2025

The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Karangetang on 16 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 50 meters (164 feet) above the vent. The alert level 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 Sep 16, 2025

The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Awu on 16 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 200 meters (656 feet) above the vent. The alert level 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 Sep 16, 2025

The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Raung on 16 September 2025 (local). Gas and vapor plume(s) rose to a maximum of 100 meters (328 feet) above the vent. The alert level 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 Sep 16, 2025

The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Fuego between 15 September 2025 (local) and 16 September 2025 (local). Crater incandescence was observed during the night and early morning. Weak and moderate Strombolian explosions were recorded at a rate of 8–12 per hour, generating ash-and-gas plumes that reached as high as 4,800 m above sea level. Shockwaves were generated by explosions. Explosions were accompanied by rumbling noises. Continuous degassing activity produced sounds resembling a train engine. Fine ash fell on communities near the SW flank. Gas and vapor plume(s) rose to a maximum of 200 meters (656 feet) above the vent. Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH)Current Alerts:Observatory…

Satellite image of Bezymianny volcano on 17 Sep 2025

Just 11 minutes ago, a 4.6-magnitude earthquake struck near Mati, Davao Oriental, Davao, Philippines. The tremor was recorded in the afternoon on Wednesday, September 17th, 2025, at 4:43 pm local time, at a shallow depth of 10. km below the surface.The event was filed by Indonesia's Meteorology, Climatology, and Geophysical Agency, the first seismological agency to report it.Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter. Weak shaking might have been felt in Bobon (pop. 4,500) located 49 km from the epicenter, San Ignacio (pop. 6,300) 59 km away, Mati (pop. 105,900) 65 km away, Manay (pop. 20,300)…

The United States Geological Survey reported a magnitude 4.7 quake in the United States near Old Harbor, Kodiak Island, Alaska, only 6 minutes ago. The earthquake hit in the evening on Tuesday, September 16th, 2025, at 8:35 pm local time at a very shallow depth of miles. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.Our monitoring service identified a second report from The Incorporated Research Institutions for Seismology (IRIS) which listed the quake at magnitude 4.7 as well.Towns or cities near the epicenter where the quake might have been felt as very weak shaking…

A shallow magnitude 4.3 earthquake was reported in the morning near Agrinio, Aitoloakarnania, West Greece, Greece.According to the European-Mediterranean Seismological Centre (EMSC), the quake hit on Wednesday, September 17th, 2025, at 7:54 am local time at a shallow depth of 24. km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.Our monitoring service identified a second report from The Aristotle University of Thessaloniki Geophysical Lab. (AUTH) which listed the quake at magnitude 4.1.Based on the preliminary seismic data, the…

Worldwide earthquakes above magnitude 3 during the past 24 hours on 17 Sep 2025Summary: 1 quake 6.0+, 3 quakes 5.0+, 37 quakes 4.0+, 149 quakes 3.0+, 305 quakes 2.0+ (495 total)Magnitude 6+: 1 earthquakeMagnitude 5+: 3 earthquakesMagnitude 4+: 37 earthquakesMagnitude 3+: 149 earthquakesMagnitude 2+: 305 earthquakesNo quakes of magnitude 7 or higher10 largest earthquakes in the world (16 Sep 2025)#1: Mag 6.0 Solomon Sea, 100 km west of Taiof Island, Bougainville, Papua New GuineaWednesday, Sep 17, 2025, at 03:59 am (GMT +11) - #2: Mag 5.2 North Pacific Ocean, 55 mi south of Herbert Island, Aleutians West Census Area, Alaska, United StatesTuesday, Sep 16, 2025, at 12:02 am (GMT -9) - #3: Mag 5.1 South Pacific Ocean, 88 km southwest…

World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 16 Sep 2025 Number in brackets indicate nr of quakes.Quakes detected near: Akuseki-jima (1 quake mag 2.3), Askja (1 quake mag 1.0), Aso (1 quake mag 1.1), Biliran (1 quake mag 2.5), Campi Flegrei (Phlegrean Fields) (2 quakes between mag 0.2-3.0), Canlaon (2 quakes between mag 1.9-2.7)Clear Lake (17 quakes between mag 0.7-2.0), El Chichón (5 quakes between mag 1.9-3.3), Eldey (30 quakes between mag 0.2-2.3), Fernandina (1 quake mag 3.0), Fukue (1 quake mag 1.2), Geureudong (4 quakes between mag 2.1-2.5), Hakone (2 quakes between mag 0.1-1.1), Hengill (4 quakes between mag 0.4-1.1), Hofsjökull (2 quakes between mag…