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Saturday, Dec 13, 2025 00:58 | 1 hour ago | By: EarthquakeMonitor

A shallow magnitude 3.8 earthquake was reported in the afternoon near Lander, Fremont County, Wyoming, USA.
According to the United States Geological Survey, the quake hit on Friday, December 12th, 2025, at 5:38 pm local time at a shallow depth of 7.2 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 3.8 as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 3.8.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Atlantic City (pop. 37) located 18 miles from the epicenter, Lander (pop. 7,700) 28 miles away, Hudson (pop. 460) 29 miles away, Arapahoe (pop. 1,700) 31 miles away, Riverton (pop. 10,900) 35 miles away, Ethete (pop. 1,600) 40 miles away, and Fort Washakie (pop. 1,800) 42 miles away.

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

Saturday, Dec 13, 2025 00:49 | 1 hour ago | By: EarthquakeMonitor

Just 10 minutes ago, a 3.8-magnitude earthquake struck near Guarda, Guarda Municipality, Distrito da Guarda, Portugal. The tremor was recorded after midnight on Saturday, December 13th, 2025, at 12:38 am local time, at a shallow depth of 23. km below the surface.
The event was filed by the European-Mediterranean Seismological Centre (EMSC), the first seismological agency to report it.
A second report was later issued by the citizen-seismograph network of RaspberryShake, which listed it as a magnitude 3.7 earthquake. A third agency, Spain’s Instituto Geográfico Nacional (IGN), reported the same quake at magnitude 3.7.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Guarda (pop. 32,100) located 18 km from the epicenter, Sequeira (pop. 28,500) 20 km away, Aguiar da Beira (pop. 5,500) 24 km away, Mangualde (pop. 8,900) 26 km away, Mangualde (pop. 8,900) 26 km away, Seia (pop. 7,100) 31 km away, Sao Romao (pop. 6,500) 32 km away, Covilha (pop. 17,600) 37 km away, and Custoias (pop. 19,400) 56 km away.

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Date & time: Dec 13,

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Sao Romao, Seia Municipality, Guarda (29 km SW of epicenter) [Map] / Weak shaking (MMI III) : Felt everything shaking while even on bed, and a loud bang, similar to an explosion, but somewhat weak | 3 users found this interesting.  

viseu (32.9 km W of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : was already awake, 2nd floor from the ground, the building shook briefly but too strong to be mistaken by a truck passing by. the bed shook, and lights flickered. nothing fell or broke but furniture did rattle and lighter objects gpt displaced. cat spooked for following 5 minutes on high alert. | 2 users found this interesting.  

Salamanca (159.5 km ENE of epicenter) [Map] / Weak shaking (MMI III) : I was in bed and I started to feel the bed shaking and moving as if a light train was moving beneath me. The lamp also moved | 2 users found this interesting.  

Gallegos de Argañán (68.2 km E of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating /

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