RSS feed source: Volcano Discovery.com--Global earthquake monitor

Fri, 12 Sep 2025, 21:25 | BY: EARTHQUAKEMONITOR

A very shallow magnitude 3.9 earthquake was reported around noon near Deltana, Southeast Fairbanks, Alaska, USA.
According to the United States Geological Survey, the quake hit on Friday, September 12th, 2025, at 1:08 pm local time at a very shallow depth of 5.4 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.
A second report was later issued by The Incorporated Research Institutions for Seismology (IRIS), which listed it as a magnitude 3.9 earthquake as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 3.9.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Paxson (pop. 40) located 20 miles from the epicenter, Dry Creek (pop. 94) 33 miles away, Deltana (pop. 2,300) 36 miles away, and Fort Greely (pop. 540) 39 miles away.

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Earthquake data:

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Date & time:

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RSS feed source: Volcano Discovery.com--Global earthquake monitor

299 km (186 mi)

NE of epicenter

Samara

(pop: 1,070)

I: Not felt

Nicoya, Provincia de Guanacaste 330 km (205 mi)

N of epicenter

Tamarindo

(pop: 6,380)

I: Not felt

Santa Cruz, Provincia de Guanacaste 330 km (205 mi)

NE of epicenter

Nicoya

(pop: 15,300)

I: Not felt

Provincia de Guanacaste 335 km (208 mi)

N of epicenter

Santa Cruz

(pop: 12,300)

I: Not felt

Provincia de Guanacaste 348 km (216 mi)

NE of epicenter

Puntarenas

(pop: 35,700)

I: Not felt

Provincia de Puntarenas 353 km (219 mi)

NE of epicenter

Chacarita

(pop: 26,400)

I: Not felt

Puntarenas, Provincia de Puntarenas 361 km (224 mi)

NE of epicenter

Esparza

(pop: 15,600)

I: Not felt

Provincia de Puntarenas 369 km (229 mi)

NE of epicenter

Desamparados

(pop: 14,400)

I: Not felt

San Mateo, Provincia de Alajuela 374 km (232 mi)

NE of epicenter

Tejar

(pop: 22,400)

I: Not felt

Acosta, Provincia de San Jose 376 km (234 mi)

NE of epicenter

San Rafael Abajo

(pop: 27,400)

I: Not felt

Puriscal, Provincia de San Jose 383 km (238 mi)

NE of epicenter

San Ramon

(pop: 10,800)

I: Not felt

San Ramon, Provincia de Alajuela 394 km (245 mi)

NE of epicenter

Aserri

(pop: 25,900)

I: Not felt

Aserri, Provincia de San Jose

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RSS feed source: Volcano Discovery.com--Global earthquake monitor

Fri, 12 Sep 2025, 21:00 1757710809 | BY: SEVERAL CONTRIBUTORS

Map of today’s active volcanoes

Shiveluch (Kamchatka): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 17000 ft (5200 m) altitude or flight level 170 and is moving at 15 kts in E direction.
The full report is as follows: VA CONTINUOUSLY OBS IN SATELLITE IMAGERY OBS VA DTG:12/1120Z to 17000 ft (5200 m)

Kusatsu-Shirane (Honshu): (11 Sep) The Japan Meteorological Agency (JMA) reported that unrest activity increased at Kusatsu-Shiranesan between 9 September 2025 (local) and 10 September 2025 (local). The alert level remained at “Level 2 – Restriction on proximity to the crater” (on a 5-level scale).
Source: Japan Meteorological Agency (JMA)
… [read more]

Suwanose-jima (Ryukyu Islands): (12 Sep) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTED AT 20250912/0031Z FL080 EXTD N OBS VA DTG:12/0030Z

Canlaon

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