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Terremoto moderado mag. 4.7 - 11 miles WSW of Novato, Marin County, California, USA, lunes, 20 dic 2021 12:10 (GMT -8) -

Terremoto moderado mag. 4.7 - 11 miles WSW of Novato, Marin County, California, USA, lunes, 20 dic 2021 12:10 (GMT -8) Terremoto moderado mag. 4.7 - 11 miles WSW of Novato, Marin County, California, USA, lunes, 20 dic 2021 12:10 (GMT -8)

Terremoto moderado magnitud 4.7 a 17 km de profundidad

20 Dec 20:16 UTC: Primero en informar: VolcanoDiscovery después de 5 minutos.
20 Dec 20:16: Ahora usando una nueva fuente de datos: RaspberryShake

Detalles del terremoto

Fecha y hora20 Dec 2021 20:10:55 UTC -
Hora local en el epicentrolunes, 20 dic 2021 12:10 (GMT -8)
StatusConfirmado
Magnitud4.7
Prof.17.3 km
Epicentro latitud / longitud38.04039°N / 122.76278°W (Marin County, California, Estados Unidos)
Antipode38.04°S / 57.237°E
Intensidad del temblorTemblor débil
Sentido34 informes
Fuente primaria de datosRaspberryShake (RaspberryShake)
Volcán mas cercanoClear Lake (103 km / 64 mi)
Lugares cercanos5 km al SE de Point Reyes Station (pop: 848) | En el mapa | Sismos cercanos
18 km al OSO de Novato (pop: 55,500) | En el mapa | Sismos cercanos
22 km al ONO de San Rafael (pop: 59,200) | En el mapa | Sismos cercanos
24 km al SSO de Petaluma (pop: 60,400) | En el mapa | Sismos cercanos
38 km al ONO de Richmond (pop: 109,700) | En el mapa | Sismos cercanos
42 km al NO de San Francisco (pop: 864,800) | En el mapa | Sismos cercanos
45 km al S de Santa Rosa (pop: 175,000) | En el mapa | Sismos cercanos
45 km al O de Vallejo (pop: 121,300) | En el mapa | Sismos cercanos
109 km al NO de San José (pop: 1,026,900) | En el mapa | Sismos cercanos
126 km al OSO de Sacramento (pop: 490,700) | En el mapa | Sismos cercanos
Tiempo en el epicentro en el momento del sismoOvercast Clouds 9.2°C (49 F), humidity: 89%, wind: 1 m/s (2 kts) from S
Energía sísmica estimada liberada7.1 x 1011 joules (197 MWh, equivalente a 169 toneladas de 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.
RevistaProf.UbicaciónFuente
4.717 kmNear Santa Cruz, California, USARaspberryShake

User reports for this quake (39)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Arcata California (332.9 km NNW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 30-60 s : Was laying in bed when the bed started shaking harshly! Alarmed family and pets and shook entire house lightly. | One user found this interesting.  
Willits / Weak shaking (MMI III) / 2-5 s : Chair shook gently, house made cracking noises,hanging lamp swayed, cats on alert, We stood up to decide what to do. Alert came just before motion. | One user found this interesting.  
Kaiser (48.7 km SE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 20-30 s : While sitting on the 5 th floor waiting room of a medical building. Noticed building movement back and forth also saw plexiglass screens moving. Some people did not notice. Others definitely did. 6.2 off of Eureka, ca.  
Anderson, CA (270.4 km N of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 15-20 s : Laying in bed and felt the bed shaking gently back and forth. Looked at surrounding objects and they were swaying as well.  
96080 (155.2 km NNE of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 5-10 s : I felt my chair swaying, thought it was me, then noticed my Christmas tree swaying as well as my ceiling fan pulls  
3179 california st, san francisco / Weak shaking (MMI III) / single lateral shake / very short : I felt a slight shake/jolt. Enough to cause me to pause and assess whether I needed to take more action. My building in San Francisco is a wooden structure, three stories high, pre-1906 earthquake, so it slightly rocked. Definitely enough to make me take   
Santa Cruz / Very weak shaking (MMI II) / horizontal (sideways) swinging / 15-20 s : I thought it was a truck on our street except for that it lasted too long. Felt like my couch was doing a little shimmy back-and-forth.  
Oildale, Kern, California (444.1 km SE of epicenter) [Map] / not felt (reported through our app)
San Francisco CA (41.8 km SE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 20-30 s
lake merritt (52.1 km ESE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s
Outer Richmond Sam Francisco (37.1 km SE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s
San francisco (42.1 km SE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 10-15 s : It woke me up from a nap  
Santa Cruz (133.6 km SSE of epicenter) [Map] / Weak shaking (MMI III) / 1-2 s : I was upstairs, I felt shaking, and heard things shaking  
San Francisco (43.3 km SE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Thought it was people stomping for a moment  
Crescent city, ca. (428.2 km NNW of epicenter) [Map] / Light shaking (MMI IV) : Sitting on couch. Lampshades swinging, water shaking in glass  
Paradise, california (224.8 km NNE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 15-20 s : Was watching TV and my trailer started shaking back and forth but the wind wasn't blowing  
San Francisco (40.2 km SE of epicenter) [Map] / Weak shaking (MMI III) / very short
San Francisco, CA (44.9 km SE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 5-10 s : 4th floor, just felt a mild swaying for 5 seconds or so.  
Clipper mills, ca (216.7 km NE of epicenter) [Map] / Weak shaking (MMI III) / complex motion difficult to describe / 5-10 s : Upstairs felt as if bills were trampoline downstares  
Uniontown, Humboldt, California (335 km NNW of epicenter) [Map] / Strong shaking (MMI VI) / complex motion difficult to describe / 15-20 s
Pebble Beach, California (178.4 km SSE of epicenter) [Map] / Very weak shaking (MMI II) / vibration and rolling / 5-10 s : working on my bed and the bed and pillows and laptop started shaking  
Trinidad Ca (358.8 km NNW of epicenter) [Map] / Weak shaking (MMI III) : Inside house  
Chico ca (205.7 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s
Santa cruz ca (134.8 km SSE of epicenter) [Map] / Weak shaking (MMI III) / vertical swinging (up and down) / 5-10 s
san francisco / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s
Marin / not felt : San Rafael had no falling items or signs of shaking.  
Marin / not felt : San Rafael had no falling items or signs of shaking.  
1960 jackson street san Francisco / Weak shaking (MMI III) / 10-15 s
Santa Cruz / Very weak shaking (MMI II) / rattling, vibrating / 10-15 s : Windows shaking. Mostly noticeable because of the slight noise they made. (reported through our app)  
West Sacramento / not felt / 20-30 s : Ceiling Lamps swinging slightly for several seconds  
Susanville / not felt (reported through our app)
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