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Terremoto moderato mag. 3.8 - 28 km a ovest da Springfield, Contea di Baca County, Colorado, Stati Uniti, lunedì, 13 set 2021 03:27 (GMT -6) -

Terremoto moderato mag. 3.8 - 28 km a ovest da Springfield, Contea di Baca County, Colorado, Stati Uniti, lunedì, 13 set 2021 03:27 (GMT -6) Terremoto moderato mag. 3.8 - 28 km a ovest da Springfield, Contea di Baca County, Colorado, Stati Uniti, lunedì, 13 set 2021 03:27 (GMT -6)

Terremoto moderato magnitudine 3.8 a 5 km di profondità

13 Sep 09:33 UTC: Primo a segnalare: VolcanoDiscovery dopo 6 minuti.
13 Sep 09:43: Ora utilizzando nuova fonte di dati: EMSC
13 Sep 09:43: Ora utilizzando nuova fonte di dati: 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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Dettagli del sismo

Data e ora13 Sep 2021 09:27:14 UTC -
Ora locale all'epicentrolunedì, 13 set 2021 03:27 (GMT -6)
StatusConfermato
Magnitudine3.8
Prof.5.0 km
Epicentro latitudine / longitudine37.4266°N / 102.9307°W (Contea di Baca, Colorado, Stati Uniti)
Antipode37.427°S / 77.069°E
Intensità di scuotimentoScuotimento leggero
Sentito17 rapporti
Fonte dati primariaUSGS (United States Geological Survey)
Luoghi vicini9 km NO da Pritchett (pop: 135) | Mappa | Sismi nelle vicinanze
28 km O da Springfield (pop: 1,400) | Mappa | Sismi nelle vicinanze
76 km SSE da Las Animas (pop: 2,230) | Mappa | Sismi nelle vicinanze
78 km SSO da la ma er (pop: 7,560) | Mappa | Sismi nelle vicinanze
82 km SE da La Junta (pop: 6,950) | Mappa | Sismi nelle vicinanze
174 km ESE da Pueblo (pop: 109,400) | Mappa | Sismi nelle vicinanze
188 km ESE da Pueblo West (Pueblo County) (pop: 29,600) | Mappa | Sismi nelle vicinanze
214 km SE da Security-Widefield (El Paso County) (pop: 32,900) | Mappa | Sismi nelle vicinanze
228 km SE da El Paso (pop: 456,600) | Mappa | Sismi nelle vicinanze
313 km SE da Denver (pop: 682,500) | Mappa | Sismi nelle vicinanze
Meteo all'epicentro al momento del sismoClear Sky 16.1°C (61 F), humidity: 22%, wind: 7 m/s (14 kts) from SSW
Energia sismica rilasciata stimata3.2 x 1010 joules (8.78 MWh, equivalent to 7.56 tons of TNT) | about seismic energy
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.Prof.UbicazioneFonte
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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User reports for this quake (20)

User reports estimate the perceived ground shaking intensity according to the 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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