Sismo leggero mag. 3.5 - North Pacific Ocean, 15 km a ovest da Ventura, Contea di Kern, Stati Uniti, mercoledì, 8 dic 2021 22:38 (GMT -8) -

Sismo leggero magnitudine 3.5 a 7.3 km di profondità

9 Dec 06:39 UTC: Primo a segnalare: VolcanoDiscovery dopo 1 minuto.
9 Dec 06:40: Ora utilizzando nuova fonte di dati: RaspberryShake
9 Dec 06:40: Ora utilizzando nuova fonte di dati: USGS
9 Dec 15:14: Magnitudine ricalcolata da 3.4 a 3.5. Profondità ricalcolata da 9.7 a 7.3 km (da 6 a 4.5 mi). Posizione dell'epicentro corretta di 2.6 km (1.6 mi) al SSE.

Update Thu, 9 Dec 2021, 06:45

Small tremor of magnitude 3.4 just reported 10 miles northwest of Ventura, California, United States

3.4 quake 8 Dec 10:38 pm (GMT -8)

A very shallow magnitude 3.4 earthquake was reported late at night near Ventura, Ventura County, California, USA.
According to the United States Geological Survey, the quake hit on Wednesday, December 8th, 2021, at 10:38 pm local time at a very shallow depth of 6 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 European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 3.4 as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Carpinteria (pop. 13,700) located 5 miles from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Ventura (pop. 96,800) located 10 miles from the epicenter, Santa Barbara (pop. 91,800) 15 miles away, Oxnard (pop. 207,300) 19 miles away, Port Hueneme (pop. 22,400) 20 miles away, Goleta (pop. 30,900) 22 miles away, Santa Paula (pop. 30,500) 23 miles away, Isla Vista (pop. 23,100) 23 miles away, and Camarillo (pop. 67,600) 26 miles away. In Valencia (pop. 148,500, 49 miles away), the quake was probably not felt.

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Earthquake data

Dettagli del sismo

Data e ora	9 Dec 2021 06:38:13 UTC -
Ora locale all'epicentro	mercoledì, 8 dic 2021 22:38 (GMT -8)
Status	Confermato
Magnitudine	3.5
Prof.	7.3 km
Epicentro latitudine / longitudine	34.3185°N / 119.45267°W (North Pacific Ocean, Contea di Kern, Stati Uniti)
Antipode	34.319°S / 60.547°E
Intensità di scuotimento	Scuotimento debole
Sentito	67 rapporti
Fonte dati primaria	USGS (United States Geological Survey)
Vulcano più vicino	Coso (241 km / 150 mi)
Luoghi vicini	11 km SE da Carpinteria (Santa Barbara County) (pop: 13,700) \| Mappa \| Sismi nelle vicinanze 15 km ONO da Ventura (pop: 96,800) \| Mappa \| Sismi nelle vicinanze 25 km ESE da Santa Barbara (pop: 91,800) \| Mappa \| Sismi nelle vicinanze 29 km ONO da Oxnard (pop: 207,300) \| Mappa \| Sismi nelle vicinanze 30 km NO da Port Hueneme (Ventura County) (pop: 22,400) \| Mappa \| Sismi nelle vicinanze 36 km O da Santa Paula (Ventura County) (pop: 30,500) \| Mappa \| Sismi nelle vicinanze 37 km ESE da Schooner (Santa Barbara County) (pop: 30,900) \| Mappa \| Sismi nelle vicinanze 39 km ESE da Isla Vista (Santa Barbara County) (pop: 23,100) \| Mappa \| Sismi nelle vicinanze 40 km ONO da Camarillo (pop: 67,600) \| Mappa \| Sismi nelle vicinanze 79 km O da Valencia (pop: 148,500) \| Mappa \| Sismi nelle vicinanze
Meteo all'epicentro al momento del sismo	Few Clouds 14°C (57 F), humidity: 83%, wind: 0 m/s (1 kts) from W
Energia sismica rilasciata stimata	1.1 x 10¹⁰ joules (3.12 MWh, equivalent to 2.68 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.	Ubicazione	Fonte
3.5	7.3 km	11km SE of Carpinteria, CA	USGS
3.5	7.3 km	Southern California	RaspberryShake
3.3	10 km	SANTA BARBARA CHANNEL, CALIF.	EMSC

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User reports for this quake (68)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

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Carpinteria California (11 km NW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Laying in bed. My bed felt like I was rocking side to side/ up n down. My bedroom door had a rattling sweep through as though a giant gust of wind blew thru the house. | One user found this interesting.

4586 El Caro Lane, Carpinteria, CA 93013 (10.9 km NW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : I was siting in my recliner, heard then felt a short shake and a rumble sound with some house creaking. None of the hanging items in the family room showed any signs of movment(Christmas stockings & pendent lights). I feel a little disoriented, but that m | One user found this interesting.

Ventura Ca 93001 (42.9 km NW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s : Up and down 3-5 times | 2 users found this interesting.

Ventura, CA (21.9 km ESE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 1-2 s : Big hard jolt and daughter ran in my room | One user found this interesting.

Carpinteria (13 km NW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / very short : Shaking 2 sevonds. East to west | One user found this interesting.

Ventura ca / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s : Dizzy | One user found this interesting.

Carpinteria / Light shaking (MMI IV) / complex motion difficult to describe / 5-10 s : Shaking!! | One user found this interesting.

Ventura (14.7 km ESE of epicenter) [Map] / not felt : I was in bed and felt the room moving side to side very slowly

Ventura (22.2 km ESE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 2-5 s : Laying in bed. Felt a quick jolt then sway.

Ventura, California (16.3 km E of epicenter) [Map] / Weak shaking (MMI III) / vibration and rolling / 2-5 s : Slight roll and bump

Carpinteria, CA (10.7 km ESE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s

2nd floor at home (4.9 km N of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / very short

Carpinteria California (8.1 km N of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 10-15 s : I was in bed and the bed shook hard.

Ventura, California (6 km E of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 2-5 s : Single jolt followed by creaking of 1962 wood frame house. Sounded like something fell on roof.

Ventura (17.7 km ESE of epicenter) [Map] / Weak shaking (MMI III) : I mostly heard Windows shaking and I knew something was happening

Carpinteria, Santa Barbara (6.4 km NNE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s

Ventura (22.2 km ESE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 2-5 s : Laying in bed. Felt a quick jolt then sway.

Carpinteria (11.8 km NW of epicenter) [Map] / Light shaking (MMI IV) : Sleeping

La conchita california (5.2 km N of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s

Toro Canyon, Santa Barbara, California (15.2 km NW of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 2-5 s : Sitting on couch watch TV, felt good sized jolt, no real shaking or rolling!

93003 (21.4 km ESE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s

Ventura ca 93004 (16.9 km E of epicenter) [Map] / Weak shaking (MMI III) / very short : Like a small jolt

GOLETA (50.1 km NW of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s

Carpinteria, CA (10.9 km NW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s

Carpinteria (11.9 km NW of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 1-2 s : Building had a sudden upward surge and shake

Ventura (14.6 km E of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / very short

Ventura, California (23.9 km ESE of epicenter) [Map] / Weak shaking (MMI III) / vibration and rolling / very short : Watching TV 10:38 PM

Santa Barbara, California (26.6 km WNW of epicenter) [Map] / Weak shaking (MMI III)

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