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Séisme modéré mag. 3.8 - 28 km à l'ouest de Springfield, Comté de Baca County, Colorado, États-Unis, lundi, 13 sept. 2021 03:27 (GMT -6) -

Séisme modéré mag. 3.8 - 28 km à l\'ouest de Springfield, Comté de Baca County, Colorado, États-Unis, lundi, 13 sept. 2021 03:27 (GMT -6) Séisme modéré mag. 3.8 - 28 km à l\'ouest de Springfield, Comté de Baca County, Colorado, États-Unis, lundi, 13 sept. 2021 03:27 (GMT -6)

Séisme modéré magnitude 3.8 à 5 km de profondeur

13 Sep 09:33 UTC: Premier à signaler: VolcanoDiscovery après 6 minutes.
13 Sep 09:43: Maintenant en utilisant une nouvelle source de données: EMSC
13 Sep 09:43: Maintenant en utilisant une nouvelle source de données: USGS
Update Mon, 13 Sep 2021, 09:48

Small magnitude 3.8 earthquake 17 miles west of Springfield, Colorado, United States

3.8 quake 13 Sep 3:27 am (GMT -6)
3.8 quake 13 Sep 3:27 am (GMT -6)
A magnitude 3.8 earthquake near Springfield, Baca County, Colorado, USA, was reported only 21 minutes ago by the United States Geological Survey, considered the key international and national agency that monitors seismic activity in the US. The earthquake occurred at a very shallow depth of 3.1 miles beneath the epicenter early morning on Monday, September 13th, 2021, at 3:27 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.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.8 earthquake as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Springfield (pop. 1,400) located 17 miles from the epicenter, Las Animas (pop. 2,200) 47 miles away, and la ma er (pop. 7,600) 49 miles away. In La Junta (pop. 7,000, 51 miles away), the quake was probably not felt.

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Détails du séisme

Date et l'heure13 Sep 2021 09:27:14 UTC -
Heure locale à l'épicentrelundi, 13 sept. 2021 03:27 (GMT -6)
StatutConfirmé
Magnitude3.8
Profondeur5.0 km
Épicentre latitude / longitude37.4266°N / 102.9307°W (Comté de Baca, Colorado, États-Unis)
Antipode37.427°S / 77.069°E
Intensité d'agitationSecousses légères
Senti17 rapports
Source de données principaleUSGS (United States Geological Survey)
Lieux à proximité9 km NO de Pritchett (pop: 135) | Carte | Séismes à proximité
28 km O de Springfield (pop: 1,400) | Carte | Séismes à proximité
76 km SSE de Las Animas (pop: 2,230) | Carte | Séismes à proximité
78 km SSO de la ma er (pop: 7,560) | Carte | Séismes à proximité
82 km SE de La Junta (pop: 6,950) | Carte | Séismes à proximité
174 km ESE de Pueblo (pop: 109,400) | Carte | Séismes à proximité
188 km ESE de Pueblo West (Pueblo County) (pop: 29,600) | Carte | Séismes à proximité
214 km SE de Security-Widefield (El Paso County) (pop: 32,900) | Carte | Séismes à proximité
228 km SE de El Paso (pop: 456,600) | Carte | Séismes à proximité
313 km SE de Denver (pop: 682,500) | Carte | Séismes à proximité
Météo à l'épicentre au moment du séismeClear Sky 16.1°C (61 F), humidity: 22%, wind: 7 m/s (14 kts) from SSW
Énergie sismique estimée libérée3.2 x 1010 joules (8.78 MWh, équivalent à 7.56 tonnes de TNT) | about seismic energy
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Données pour le même séisme indiquées par différentes agences

Info : Plus les agences signalent le même séisme et publient des données similaires, plus vous pouvez avoir confiance dans les données. Il faut normalement jusqu'à quelques heures pour que les paramètres sismiques soient calculés avec une précision quasi optimale.
Mag.ProfondeurLieuSource
3.85 kmNear Springfield, Colorado, USAUSGS
3.85 km8 Km NW of Pritchett, ColoradoEMSC

Seismograms

Seismic station: Great Sand Dunes National Park, Colorado, USA (SDCO/US network) | Distance from quake: 229 km / 142 mi | Show on map | Station Info
Seismic station Great Sand Dunes National Park, Colorado, USA: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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Témoignages pour ce séisme (20)

Les rapports des utilisateurs estiment l'intensité perçue des secousses du sol en fonction de l' Échelle MMI (Modified Mercalli Intensity Scale).
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Springfield, CO, (28 km E of epicenter) [Map] / Moderate shaking (MMI V) / 2-5 s : House shook with a really loud bang. Lasted a couple seconds. We were about to put our baby back into bed. Shaking of the bed and dresser | 4 users found this interesting.  
Springfield, Baca, Colorado (27.1 km E of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Loud sound at first. Sounded like a cracking. Then shaking that got weaker as time went on. We thought the house had been hit by something. | 4 users found this interesting.  
Springfield Colorado / Moderate shaking (MMI V) / vibration and rolling / 10-15 s : Felt shaking, awoke me from sleep, heard a bit of earth roaring, building shook, made dogs bark in neighborhood if town. | 3 users found this interesting.  
Springfield, CO 82073 / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : Sitting awake in living room with TV on. Heard rumbling as if large truck/s were going by and house began to shake. | 3 users found this interesting.  
Springfield / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s : At 3:25 am being woke up by this loud noise shaking in the house this was very weird and scary. | 4 users found this interesting.  
Springfield Colorado / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : It woke me up, I thought there had been an explosion or something. | 3 users found this interesting.  
near Springfield, Baca, Colorado (21.1 km ENE of epicenter) [Map] / Light shaking (MMI IV) : I was asleep and it woke me up. I thought it was thunder, but nothing was in the radar. Around 10pm last night (9/12), we had rumbling outside we thought was thunder as well, but nothing on the radar then either. Related?  
Springfield Co (28.2 km E of epicenter) [Map] / Moderate shaking (MMI V) / complex motion difficult to describe / 5-10 s : The ground moving from underneath me! | 2 users found this interesting.  
Springfield, CO (28.1 km E of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating : I was asleep and it woke me up by shaking my bed and sounding like thunder | 2 users found this interesting.  
near Springfield, Baca, Colorado (5.9 km E of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 10-15 s : light shaking | One user found this interesting.  
Springfield, CO (28.1 km ESE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / very short : Vibrating noise and sounded like house shaking | One user found this interesting.  
Springfield / Light shaking (MMI IV) / 1-2 s
LAMAR colorado / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : I had gotten up at 3:00 a.m. to use the bathroom and was trying to fall back asleep and at 3:30 a.m. the was a rumbling a shaking of my house, I first thought someone might be trying to break in.. but then soon realized it was an earthquake.  
Springfield, CO, (28 km E of epicenter) [Map] / Moderate shaking (MMI V) / 2-5 s : House shook with a really loud bang. Lasted a couple seconds. We were about to put our baby back into bed. Shaking of the bed and dresser  
Springfield Colorado / Weak shaking (MMI III) / single vertical bump / 1-2 s : Enough to shake my bed and wake me up  
la junta colorado / not felt
81090 (56.6 km ESE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 20-30 s : The mirror on our headboard rattles when we feel an earthquake. It woke both of us up. The last time was the Hays, Kansas quake.  
Walsh, Colorado / not felt : Shook items in house  
Springfield / Light shaking (MMI IV) / rattling, vibrating : I’m a heavy sleeper, but did wake me up. Felt as if lightning hit close and the thunder was shaking the ground and out windows. Except the shaking was longer than normal, checked phone to see if storm was nearby.  
Lamar, CO / not felt / rattling, vibrating / 2-5 s

Earlier earthquakes in the same area

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