Sismo leggero mag. 2.8 - 5.4 km a nord da Portola, Contea di Plumas County, Contea di Kern, Stati Uniti, domenica, 23 maggio 2021 -

Sismo leggero mag. 2.8 - 5.4 km a nord da Portola, Contea di Plumas County, Contea di Kern, Stati Uniti, domenica, 23 maggio 2021

Sismo leggero magnitudine 2.8 at 1 km depth

23 May 17:22 UTC: Primo a segnalare: VolcanoDiscovery dopo 2 minuti.
23 May 17:23: Ora utilizzando nuova fonte di dati: EMSC
23 May 17:23: Ora utilizzando nuova fonte di dati: USGS
Data & ora: 23 May 2021 17:20:40 UTC -
Magnitudine: 2.8
Profondità: 0.9 km
Epicentro latitudine / longitudine: 39.85867°N / 120.46917°W (Contea di Plumas, Contea di Kern, Stati Uniti)
Vulcano più vicino: Lassen (116 km / 72 mi)
Nearby towns and cities:
2 km SSE da Lake Davis (pop: 45) --> Vedi sismi vicini
5 km N da Portola (pop: 1,900) --> Vedi sismi vicini
64 km NNO da Truckee (pop: 16,300) --> Vedi sismi vicini
64 km SSE da Susanville (Lassen County) (pop: 15,200) --> Vedi sismi vicini
66 km ONO da Sun Valley (Washoe County, Nevada) (pop: 19,300) --> Vedi sismi vicini
67 km ONO da Reno (Nevada) (pop: 241,400) --> Vedi sismi vicini
69 km ONO da Spanish Springs (Washoe County, Nevada) (pop: 15,100) --> Vedi sismi vicini
71 km ONO da Sparks (Nevada) (pop: 96,100) --> Vedi sismi vicini
98 km NO da Carson City (Nevada) (pop: 54,500) --> Vedi sismi vicini
167 km NNE da Sacramento (pop: 490,700) --> Vedi sismi vicini
Fonte dati primaria: USGS (United States Geological Survey)
Stima dell'energia sismica liberata: 1 x 109 joules (278 kilowatt hours, equivalent to 0.239 tons of TNT) More info
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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.ProfonditàUbicazioneFonte
2.80.9 kmNear Portola, California, USAUSGS
unknownn/aNORTHERN CALIFORNIAVolcanoDiscovery
2.57 kmNORTHERN CALIFORNIAEMSC

User reports for this quake (6)

At magnitude 2.8, this quake might have been felt very close to the epicenter and under calm conditions.
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Portola, Plumas, California (4.3 km S of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 1-2 s : Brief but strong shake | One user found this interesting.  
Portola, CA / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Lake Davis / Light shaking (MMI IV) / horizontal (sideways) swinging / 1-2 s : Low rumbling noise followed immediately with shaking  
Beckwourth / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Horizontal shaking and jolt lasting no more than 5 seconds.  
Lake Davis Road, Portola, CA / Weak shaking (MMI III) / single vertical bump / very short
Portola (5.2 km S of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / very short (reported through our app)
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