Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 24000 ft (7300 m) altitude or flight level 240 .The full report is as follows:FVAG01 at 01:58 UTC, 18/04/26 from SABMVA ADVISORYDTG: 20260418/0210ZVAAC: BUENOS AIRESVOLCANO: SABANCAYA 354006PSN: S1547 W07150AREA: PERUSUMMIT ELEV: 19576 FT [5967 M]ADVISORY NR: 2026/253INFO SOURCE: GOES-E. GFS. WEBCAM. VOLCAT.AVIATION COLOUR CODE: NOT GIVENERUPTION DETAILS: INTERMITTENT EMISSIONOBS VA DTG: 18/0130ZOBS VA CLD: SFC/FL240 S1547 W07151 - S1600 W07140- S1606 W07148 - S1558 W07156 - S1547 W07151 MOVSE 5KTFCST VA CLD +6 HR: 18/0730Z SFC/FL240 S1548 W07150- S1554 W07142 - S1612 W07134 - S1616 W07152 -S1557 W07154 - S1548 W07150FCST VA CLD +12 HR: 18/1330Z SFC/FL240 S1548W07150 -…

Worldwide earthquakes above magnitude 3 during the past 24 hours on 18 Apr 2026Summary: 4 quakes 5.0+, 33 quakes 4.0+, 150 quakes 3.0+, 357 quakes 2.0+ (544 total)Magnitude 5+: 4 earthquakesMagnitude 4+: 33 earthquakesMagnitude 3+: 150 earthquakesMagnitude 2+: 357 earthquakesNo quakes of magnitude 6 or higher10 largest earthquakes in the world (17 Apr 2026)#1: Mag 5.4 Northern Mid-Atlantic RidgeFriday, Apr 17, 2026, at 09:39 am (GMT -3) - #2: Mag 5.3 Maluku Sea, Sulawesi Utara, 148 km north of Pulau Bakalan Island, IndonesiaSaturday, Apr 18, 2026, at 07:21 am (GMT +8) - #3: Mag 5.1 Maluku Sea, 15 km southwest of Pulau Mayu Island, North Maluku, IndonesiaSaturday, Apr 18, 2026, at 08:29 am (Jayapura time) - #4: Mag 5.1 Solomon…

World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 17 Apr 2026 Number in brackets indicate nr of quakes.Quakes detected near: Baluran (1 quake mag 2.0), Bardarbunga (5 quakes between mag 0.1-1.8), Baru (1 quake mag 2.5), Besar (2 quakes between mag 2.3-2.4), Campi Flegrei (Phlegrean Fields) (3 quakes between mag 0.1-1.6), Clear Lake (30 quakes between mag 0.2-1.7)Coso (5 quakes between mag 0.8-1.5), Cotopaxi (1 quake mag 2.3), El Chichón (3 quakes between mag 2.2-2.8), Eldey (5 quakes between mag 0.0-1.5), Geureudong (1 quake mag 2.4), Grímsvötn (4 quakes between mag 0.2-1.9), Iliamna (2 quakes between mag 0.8-1.0), Iliboleng (3 quakes between mag 2.3-2.8), Ililabalekan (1 quake…

A magnitude 5.9 earthquake near Modisi, Sulawesi Utara, Indonesia, was reported only 6 minutes ago by Indonesia's Meteorology, Climatology, and Geophysical Agency, considered the main national agency that monitors seismic activity in Indonesia. The earthquake occurred at an intermediate depth of 102. km beneath the epicenter in the morning on Saturday, April 18th, 2026, at 7:21 am local time. 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.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…

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 .The full report is as follows:FVAU02 at 22:58 UTC, 17/04/26 from ADRMVA ADVISORYDTG: 20260417/2300ZVAAC: DARWINVOLCANO: SEMERU 263300PSN: S0806 E11255AREA: INDONESIASOURCE ELEV: 3657M AMSLADVISORY NR: 2026/441INFO SOURCE: HIMAWARI-9, CVGHMERUPTION DETAILS: VA TO FL150 OBS AT 17/2240Z, MOV WOBS VA DTG: 17/2240ZOBS VA CLD: SFC/FL150 S0809 E11258 - S0821 E11132 - S0756 E11125 - S0733 E11142 - S0800 E11258 MOV W 10KTFCST VA CLD +6 HR: 18/0440Z SFC/FL150 S0808 E11258 - S0821 E11140 - S0758 E11130 - S0737 E11144 - S0800 E11258FCST VA CLD +12 HR: 18/1040Z SFC/FL150 S0807 E11259 - S0831 E11138…

A shallow magnitude 3.9 earthquake was reported early afternoon near Pelican, Hoonah-Angoon, Alaska, USA.According to the United States Geological Survey, the quake hit on Friday, April 17th, 2026, at 2:04 pm local time at a shallow depth of 7.3 miles. 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 Incorporated Research Institutions for Seismology (IRIS) which listed the quake at magnitude 3.9 as well. A third agency, the European-Mediterranean Seismological Centre…

Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:FVFE01 at 21:35 UTC, 17/04/26 from RJTDVA ADVISORYDTG: 20260417/2135ZVAAC: TOKYOVOLCANO: MAYON 273030PSN: N1315 E12341AREA: PHILIPPINESSOURCE ELEV: 2462M AMSLADVISORY NR: 2026/502INFO SOURCE: HIMAWARI-9 PHIVOLCSERUPTION DETAILS: ERUPTION AT 20260417/2116Z FL090 EXTD WSW REPORTEDOBS VA DTG: 17/2120ZOBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL090 050/8KTFCST VA CLD +6 HR: NOT AVBLFCST VA CLD +12 HR: NOT AVBLFCST VA CLD +18 HR: NOT AVBLRMK: WE WILL ISSUE FURTHER ADVISORY IF VA IS DETECTED IN SATELLITE IMAGERY.NXT ADVISORY: NO FURTHER ADVISORIES=