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Volcano earthquake report for Monday, 28 September 2026
• M 2.8 - 42 km N of Chase, Alaska
• Moderate mag. 4.8 earthquake - Eastern Gulf of Aden on Monday, Sep 28, 2026...
• M 1.0 - 4 km ENE of Huntsville, Utah
• M 2.1 - 1 km NNW of Pāhala, Hawaii
• M 1.7 - 13 km SSW of Jal, New Mexico
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Volcano earthquake report for Monday, 28 September 2026
Webmaster
15 minutes ago
Volcano earthquake report for Monday, 28 September 2026 World map showing volcanoes with shallow (less than 50 km) earthquakes within 20 km radius during the past 24 hours on 28 Sep 2026 Number in brackets indicate nr of quakes. Quakes detected near: Agua (1 quake mag 2.9), Alaska Peninsula Arc at 155.4°W (2 quakes between mag 1.0-1.2), Askja (2 quakes between mag 0.3-1.4), Balut (2 quakes between mag 1.6-2.9), Bardarbunga (5 quakes between mag 0.3-1.4), Baru (1 quake mag 3.0) Biliran (1 quake mag 2.2), Chingo (2 quakes between mag 1.1-1.6), Clear Lake (29 quakes between mag 0.3-1.6), Conchagüita (1 quake mag 2.8), Coso (2 quakes between mag 0.7-1.0), Eldey (2 quakes between mag 0.7-1.0), Escanaba Segment (1 quake mag 3.2), Etna (3 quakes between mag 0.5-1.2), Flores (18 quakes between mag 0.9-2.6), Isarog (1 quake mag 2.4), Jan Mayen (1 quake mag 2.0), Kanlaon (1 quake mag 1.6), Karadağ (3 quakes between mag 1.5-2.1), Kolbeinsey Ridge (1 quake mag 3.5), Ljósufjöll (2 quakes between mag 1.1-1.5), Masaya (1 quake mag 2.5), Mayon (1 quake mag 1.6), Methana (1 quake mag 1.7), Mount Adams (7 quakes between mag 0.9-2.6), Nisyros (1 quake mag 1.4), Novarupta (3 quakes between mag 0.6-2.0), Numazawa (1 quake mag 2.8), Paluweh (1 quake mag 3.2), Pocdol Mountains (1 quake mag 1.5), Sabancaya (1 quake mag 3.3), Svartsengi (1 quake mag 1.1), Tahual (1 quake mag 2.5), Tecuamburro (2 quakes between mag 1.3-2.6), Tjörnes Fracture Zone (2 quakes between mag 1.4-1.6), Torfajökull (9 quakes between mag 0.1-1.1), Trident (2 quakes between mag 0.5-1.3) (updated 19h50)\n\nNote: Earthquakes within 20 km from and at depths less than 50 km under active volcanoes are reported. The list is not complete because many volcanoes are not monitored and/or seismic data in high resolution is not available publicly.\n Volcanoes with recent earthquakes above magnitude 2 or more than 10 quakes are listed below:
Agua volcano (Guatemala): magnitude 2.9 earthquakeA magnitude 2.9 earthquake occurred at the volcano 15 hours ago. The quake, which might be volcanic in origin, was located at a depth of 12.00 km depth at 8 km distance SSW from the volcano. Earthquake details: 2.9 quake Departamento de Santa Rosa, 38 km southwest of Guatemala City, Guatemala, Sep 27, 2026 11:00 pm (GMT -6) (8 km SSW) All earthquakes at AguaAgua is a prominent 3,760 m stratovolcano beside Antigua, Guatemala. It has no recorded eruptions, while a devastating mudflow destroyed Ciudad Vieja in 1541. Balut volcano (Mindanao): 2 earthquakes up to magnitude 2.92 earthquakes occurred near (under) the volcano during 1 hour 29 minutes, the last being recorded quake 1 hour 3 minutes ago. Hypocenter depths ranged between 33.00 and 28.00 km. Earthquake details: 2.9 quake Philippine Sea, 21 km south of Sarangani Island, Philippines, Sep 29, 2026 01:18 am (GMT +8) (16 km SSE) 1.6 quake Davao Occidental, Davao, Philippines, Sep 29, 2026 02:47 am (GMT +8) (10 km SSW) All earthquakes at BalutBalut is an 840 m island stratovolcano south of Mindanao whose last known eruption occurred between about 2 million and 11,700 years ago. Hot springs and thermally altered ground occur on its western and southwestern flanks. Baru volcano (Panama): magnitude 3.0 earthquakeA magnitude 3.0 earthquake occurred at the volcano 29 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 13 km distance ESE from the volcano. Earthquake details: Unconfirmed quake or seismic-like event reported: 35 km northeast of La Concepcion, Provincia de Chiriqui, Panama, Sep 28, 2026 02:21 pm (GMT -5) (13 km ESE) All earthquakes at BaruBiliran volcano (Central Philippines): magnitude 2.2 earthquakeA magnitude 2.2 earthquake occurred at the volcano 10 hours ago. The quake, which might be volcanic in origin, was located at a depth of 23.00 km depth at 18 km distance SSW from the volcano. Earthquake details: 2.2 quake 42 km north of Ormoc, Province of Leyte, Eastern Visayas, Philippines, Sep 28, 2026 05:40 pm (GMT +8) (18 km SSW) All earthquakes at BiliranBiliran is a dome-rich volcanic island across a narrow strait from northern Leyte in the Philippines. Its only known historical eruption was a phreatic explosion with ash and a possible debris avalanche on 26 September 1939. Clear Lake volcano (California): 29 earthquakes up to magnitude 1.6Possible earthquake swarm: 29 earthquakes occurred near (under) the volcano during 23 hours, the last being recorded quake 50 minutes ago. Hypocenter depths ranged between 15.91 and 0.26 km. Earthquake details: (only 5 largest) 1.6 quake Sonoma County, 14 mi southwest of Clearlake, Lake County, California, United States, Sep 28, 2026 09:37 am (GMT -7) (18 km S) 1.5 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Sep 28, 2026 02:25 am (GMT -7) (17 km SSW) 1.5 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Sep 27, 2026 02:22 pm (GMT -7) (16 km SSW) 1.4 quake Lake County, 27 mi north of Santa Rosa, Sonoma County, California, United States, Sep 27, 2026 01:05 pm (GMT -7) (16 km S) 1.3 quake 28 mi north of Santa Rosa, Sonoma County, California, United States, Sep 28, 2026 12:57 am (GMT -7) (17 km SSW) All earthquakes at Clear LakeConchagüita volcano (El Salvador): magnitude 2.8 earthquakeA magnitude 2.8 earthquake occurred at the volcano 12 hours ago. The quake, which might be volcanic in origin, was located at a depth of 6.00 km depth at 19 km distance WNW from the volcano. Earthquake details: 2.8 quake 9.1 km west of La Union, Departamento de La Union, El Salvador, Sep 28, 2026 01:57 am (GMT -6) (19 km WNW) All earthquakes at ConchagüitaConchagüita is a 505-m-high island stratovolcano in El Salvador’s Gulf of Fonseca. Its last known eruption occurred more than about 11,700 years ago, and a reported 1892 eruption is discredited. Escanaba Segment volcano (Northern Pacific Ocean): magnitude 3.2 earthquakeA magnitude 3.2 earthquake occurred at the volcano 6 hours ago. The quake, which might be volcanic in origin, was located at a depth of 10.00 km depth at 18 km distance NNE from the volcano. Earthquake details: 3.2 quake 275 km W of Indianola, California, Sep 28, 2026 05:30 am (GMT -8) (18 km NNE) All earthquakes at Escanaba SegmentEscanaba Segment is a 130-km-long submarine volcanic rift off northern California. A basaltic lava flow there has been tentatively dated to about 2260 BCE. Flores volcano (Guatemala): 18 earthquakes up to magnitude 2.6Possible earthquake swarm: 18 earthquakes occurred near (under) the volcano during 16 hours, the last being recorded quake 7 hours ago. Hypocenter depths ranged between 6.90 and 1.30 km. Earthquake details: (only 5 largest) 2.6 quake 18 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Sep 28, 2026 06:49 am (GMT -6) (18 km WNW) 2.4 quake 22 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Sep 28, 2026 12:49 am (GMT -6) (15 km WNW) 2.3 quake 22 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Sep 27, 2026 03:52 pm (GMT -6) (15 km WNW) 2.2 quake 22 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Sep 28, 2026 12:44 am (GMT -6) (15 km WNW) 2.1 quake 22 km northeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Sep 28, 2026 04:56 am (GMT -6) (15 km WNW) All earthquakes at FloresFlores, also known as Volcán Amayo, is a volcanic field about 10 km west of Jutiapa in southeastern Guatemala. Its last eruption is undated, and none are known from approximately the past 11,700 years. Isarog volcano (Luzon Island): magnitude 2.4 earthquakeA magnitude 2.4 earthquake occurred at the volcano 17 hours ago. The quake, which might be volcanic in origin, was located at a depth of 16.00 km depth at 12 km distance NNE from the volcano. Earthquake details: 2.4 quake 23 km east of Calabanga, Province of Camarines Sur, Bicol, Philippines, Sep 28, 2026 10:43 am (GMT +8) (12 km NNE) All earthquakes at IsarogIsarog is a 1,966 m stratovolcano in southeastern Luzon with a broad breached summit crater and a major debris-avalanche deposit. Its only confirmed eruptive period is dated to around 3500 BCE. Karadağ volcano (Turkey): 3 earthquakes up to magnitude 2.13 earthquakes occurred near (under) the volcano during 18 minutes, the last being recorded quake 20 hours ago. Hypocenter depths ranged between 11.60 and 6.90 km. Earthquake details: 2.1 quake 20 km north of Karaman, Karaman, Turkey, Sep 28, 2026 02:59 am (GMT +3) (12 km ESE) 1.8 quake 21 km north of Karaman, Karaman, Turkey, Sep 28, 2026 03:10 am (GMT +3) (12 km ESE) 1.5 quake 21 km north of Karaman, Karaman, Turkey, Sep 28, 2026 03:17 am (GMT +3) (14 km ESE) All earthquakes at KaradağKolbeinsey Ridge volcano (Iceland): magnitude 3.5 earthquakeA magnitude 3.5 earthquake occurred at the volcano 2 hours ago. The quake, which might be volcanic in origin, was located at a depth of 12.20 km depth at 10 km distance WNW from the volcano. Earthquake details: 3.5 quake 62 km north of Siglufjordur, Northeast, Iceland, Sep 28, 2026 05:38 pm (Reykjavik time) (10 km WNW) All earthquakes at Kolbeinsey RidgeKolbeinsey Ridge is a submarine fissure-vent system north of Iceland, with tiny Kolbeinsey Island as its only expression above sea level. Historical eruption reports from 1372 and 1755 have uncertain locations. Masaya volcano (Nicaragua): magnitude 2.5 earthquakeA magnitude 2.5 earthquake occurred at the volcano 1 hour 50 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 15.00 km depth at 9 km distance NNE from the volcano. Earthquake details: 2.5 quake Departamento de Masaya, 14 km southeast of Managua, Nicaragua, Sep 28, 2026 12:00 pm (GMT -6) (9 km NNE) All earthquakes at MasayaMasaya is a frequently active Nicaraguan volcano about 20 km southeast of Managua. Known for its intermittent lava lake, it has also produced lava flows, explosive eruptions, ashfall and prolonged gas emissions. Mount Adams volcano (Washington State): 7 earthquakes up to magnitude 2.67 earthquakes occurred near (under) the volcano during 11 hours, the last being recorded quake 9 hours ago. Hypocenter depths ranged between 1.95 and 0.09 km. Earthquake details: (only 5 largest) 2.6 quake Skamania County, 55 mi southwest of Yakima, Yakima County, Washington, United States, Sep 27, 2026 05:12 pm (GMT -7) (3 km WNW) 1.4 quake 55 mi southwest of Yakima, Yakima County, Washington, United States, Sep 27, 2026 04:30 pm (GMT -7) (3 km NW) 1.2 quake Skamania County, 55 mi southwest of Yakima, Yakima County, Washington, United States, Sep 28, 2026 03:59 am (GMT -7) (3 km WNW) 1.1 quake 55 mi southwest of Yakima, Yakima County, Washington, United States, Sep 27, 2026 05:05 pm (GMT -7) (3 km NW) 1.0 quake 55 mi southwest of Yakima, Yakima County, Washington, United States, Sep 28, 2026 04:38 am (Universal Time) (2 km W) All earthquakes at Mount AdamsMount Adams is a large stratovolcano in south-central Washington with more than 60 flank vents. Its last known eruption occurred around 950 CE, producing minor tephra and possibly a small east-flank lava flow. Numazawa volcano (Honshu): magnitude 2.8 earthquakeA magnitude 2.8 earthquake occurred at the volcano 12 hours ago. The quake, which might be volcanic in origin, was located at a depth of 6.70 km depth at 12 km distance WSW from the volcano. Earthquake details: 2.8 quake 46 km west of Aizu-Wakamatsu, Fukushima, Japan, Sep 28, 2026 04:24 pm (GMT +9) (12 km WSW) All earthquakes at NumazawaNumazawa is a Japanese shield volcano with a 1.5 × 2 km lake-filled caldera. Its only listed confirmed eruptive period was a major explosive and effusive event several thousand years ago. Paluweh volcano (Lesser Sunda Islands): magnitude 3.2 earthquakeA magnitude 3.2 earthquake occurred at the volcano 6 hours ago. The quake, which might be volcanic in origin, was located at a depth of 13.00 km depth at 15 km distance NNW from the volcano. Earthquake details: 3.2 quake Flores Sea, 72 km north of Ende, Kabupaten Ende, East Nusa Tenggara, Indonesia, Sep 28, 2026 10:16 pm (GMT +8) (15 km NNW) All earthquakes at PaluwehPaluweh is an island-forming stratovolcano north of Flores, Indonesia. Its major eruptions include a destructive, tsunami-producing event in 1928 and deadly pyroclastic flows in 2013. Sabancaya volcano (Peru): magnitude 3.3 earthquakeA magnitude 3.3 earthquake occurred at the volcano 1 hour 16 minutes ago. The quake, which might be volcanic in origin, was located at a depth of 9.00 km depth at 2 km distance N from the volcano. Earthquake details: 3.3 quake 78 km northwest of Arequipa, Arequipa, Peru, Sep 28, 2026 01:33 pm (GMT -5) (2 km N) All earthquakes at SabancayaSabancaya is an active stratovolcano in Peru whose observed eruptions date to 1750. Its recent activity has included frequent explosions, ash plumes, lava-dome growth, pyroclastic flows and lahars. Tahual volcano (Guatemala): magnitude 2.5 earthquakeA magnitude 2.5 earthquake occurred at the volcano 16 hours ago. The quake, which might be volcanic in origin, was located at a depth of 2.00 km depth at 15 km distance WNW from the volcano. Earthquake details: 2.5 quake 20 km south of Jalapa, Departamento de Jalapa, Guatemala, Sep 27, 2026 09:52 pm (GMT -6) (15 km WNW) All earthquakes at TahualTahual is an eroded, forested stratovolcano south of Monjas in Guatemala. A cone near its northeastern base produced a short basaltic lava flow during approximately the past 11,700 years, but the date of the volcano’s last eruption is unknown. Tecuamburro volcano (Guatemala): 2 earthquakes up to magnitude 2.62 earthquakes occurred near (under) the volcano during 7 minutes, the last being recorded quake 21 hours ago. Hypocenter depths ranged between 6.30 and 3.20 km. Earthquake details: 2.6 quake 12 km southeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Sep 27, 2026 05:00 pm (GMT -6) (17 km E) 1.3 quake 13 km southeast of Cuilapa, Departamento de Santa Rosa, Guatemala, Sep 27, 2026 05:07 pm (GMT -6) (18 km E) All earthquakes at TecuamburroTecuamburro is a forested stratovolcano and lava-dome complex in Guatemala. Its only dated eruption, about 2,900 years ago, formed the Laguna Ixpaco tuff ring. https://www.volcanodiscovery.com/earthquakes-volcanoes/news/366474/Volcano-earthquake-report-2026-09-28.html
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Possible earthquake reported near Tokyo, Japan
Webmaster
16 minutes ago
Possible earthquake reported near Tokyo, Japan Unconfirmed earthquake or seismic-like event: 4.9 km southeast of Tokyo, Tokyo, Japan, 3 minutes ago We are receiving unverified early reports of ground shaking possibly caused by seismic activity in or near Tokyo, Tokyo, Japan, on 28 Sep 2026 (GMT) at approximately 19:45 GMT. There are no details yet on the magnitude or depth of this possible quake. If confirmed, we can expect more accurate data to emerge in the next few minutes. The location, magnitude, and time mentioned are indicative, based on our best-fit seismic model. They are temporary until our AllQuakes monitoring service receives more exact scientific data from a national or international seismological agency. Check back here shortly and stay safe.
Earthquake data: Date & time: Sep 29, 2026 04:45 am (GMT +9) local time (28 Sep 2026 19:45 GMT)Magnitude: unspecified Hypocenter depth: unspecified Epicenter coordinates: 35.67°N / 139.74°E  ( Tokyo, Japan) Primary data source: VolcanoDiscoveryhttps://www.volcanodiscovery.com/earthquakes/news/367090/Possible-earthquake-reported-near-Tokyo-Japan.html
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SPC MD 2330
Webmaster
23 minutes ago
SPC MD 2330MD 2330 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR WESTERN SOUTH DAKOTA VICINITY 
Mesoscale Discussion 2330 NWS Storm Prediction Center Norman OK 0240 PM CDT Mon Sep 28 2026
Areas affected...western South Dakota vicinity
Concerning...Severe potential...Watch unlikely
Valid 281940Z - 282145Z
Probability of Watch Issuance...5 percent
SUMMARY...Isolated strong to severe thunderstorms may produce sporadic hail through evening. Severe potential is expected to remain limited, and a watch is not anticipated.
DISCUSSION...Thunderstorms are developing near the Black Hills across northeast WY this afternoon. This activity is developing near the surface low and attendant cold front within an area that has seen less cloudiness/stronger heating. An area of cumulus development is noted in visible satellite imagery where clearing has been more prevalent across northwest SD into southwest ND. Additional thunderstorm development is expected within this area over the next few hours.
Latest mesoanalysis shows MLCAPE around 1000-1500 J/kg and 7-7.5 C/km midlevel lapse rates across the region, which aligns well with 18z RAOBS from UNR and BIS. Effective shear magnitudes around 30 kt and elongated hodographs above 2 km in combination with this thermodynamic environment suggests that a few organized updrafts could support marginally severe hail. With time, and northeast extent, convection may become more elevated given greater low-level inhibition where cloudiness has persisted, and as the cold front begins to surge east/southeast during the evening.
..Leitman/Gleason.. 09/28/2026
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ABR...BIS...UNR...BYZ...
LAT...LON 43940426 44030437 44440477 44580487 45020470 45900400 46360322 46590226 46580178 46450131 46210092 45720060 44920073 44340101 43950156 43630251 43550340 43940426
MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
Read morehttps://www.spc.noaa.gov/products/md/md2330.html
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SPC Day 2 Fire Weather Outlook
Webmaster
35 minutes ago
SPC Day 2 Fire Weather OutlookSPC Day 2 Fire Weather Outlook  Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0229 PM CDT Mon Sep 28 2026
Valid 291200Z - 301200Z
...Sacramento Valley and Southern California... Surface high pressure filtering into the Intermountain West as a closed upper low progresses into the Desert Southwest will contribute to dry northerly flow across portions of the Sacramento Valley and parts of southern CA D2/Tuesday. Northerly winds of 10-15 mph will funnel into the Sacramento Valley Tuesday as a thermal trough strengthens over the region. Temperatures in the 90s and RH reductions of close to 10% are expected by Tuesday afternoon. This hot and dry environment will align with enhanced north winds to support elevated fire weather conditions amid a drying fuelscape. Northerly, offshore wind trajectories and RH as low as 15% will also affect southern Santa Barbara County and the mountains and foothills of Ventura and Los Angeles Counties. Wind speeds in favored terrain gaps should reach 15-20 mph with higher gusts of 40-45 mph. Thus, Elevated highlights have been maintained for portions of southern CA.
...North-Central Montana... 50-60 knot mid-level zonal flow and tightening surface pressure gradient across the northern High Plains will contribute to dry downslope flow over portions of north-central MT Tuesday. The existing elevated area was shifted slightly eastward accounting for latest model guidance consensus showing a upward trend in RH and cloud cover along and just downstream of higher terrain.
..Williams.. 09/28/2026
.PREV DISCUSSION... /ISSUED 0159 AM CDT Mon Sep 28 2026/
...Synopsis... ...Southern California... Surface high pressure expanding across the Great Basin as an upper low moves into the Southwest will maintain dry, breezy offshore flow across parts of southern CA on Tuesday. Northerly winds of 15-20 mph, with gusts to 30-45, are possible in wind-prone areas across southern Santa Barbara County and the mountains and foothills of Ventura and Los Angeles Counties. RH of 15-20 percent, combined with increasingly dry fuels, will support elevated fire-weather conditions.
...North-central Montana... Increasing westerly flow aloft and a tightening surface pressure gradient across the northern Rockies/High Plains will promote breezy, downslope winds across north-central MT on Tuesday. Westerly surface winds of 15-25 mph and minimum RH of 15-20 percent will overlap dry fuels, yielding elevated fire-weather conditions.
...Please see www.spc.noaa.gov/fire for graphic product...
Read morehttps://www.spc.noaa.gov/products/fire_wx/fwdy2.html
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Wednesday: Thundery Showers, Minimum Temperature: 11°C (52°F) Maximum Temperature: 21°C (70°F)
Webmaster
35 minutes ago
Maximum Temperature: 21°C (70°F), Minimum Temperature: 11°C (52°F), Wind Direction: southerly, Wind Speed: 10mph, Visibility: Moderate, Pressure: 1008mb, Humidity: 76%, UV Risk: 4, Pollution: Low, Sunrise: 07:08 BST, Sunset: 18:49 BST Source: Wednesday: Thundery Showers, Minimum Temperature: 11°C (52°F) Maximum Temperature: 21°C (70°F)
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Tuesday: Light Cloud, Minimum Temperature: 18°C (64°F) Maximum Temperature: 22°C (72°F)
Webmaster
35 minutes ago
Maximum Temperature: 22°C (72°F), Minimum Temperature: 18°C (64°F), Wind Direction: easterly, Wind Speed: 11mph, Visibility: Very Good, Pressure: 1014mb, Humidity: 81%, UV Risk: 2, Pollution: Low, Sunrise: 07:06 BST, Sunset: 18:51 BST Source: Tuesday: Light Cloud, Minimum Temperature: 18°C (64°F) Maximum Temperature: 22°C (72°F)
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