Sismo leggero mag. 3.2 - 2.8 km a est da San Leandro, Contea di Alameda County, Contea di Kern, Stati Uniti, 6 Sep 2020 11:36 am -

Sismo leggero mag. 3.2 - 2.8 km a est da San Leandro, Contea di Alameda County, Contea di Kern, Stati Uniti, 6 Sep 2020 11:36 am

Sismo leggero magnitudine 3.2 at 9 km depth

6 Sep 18:47 UTC: Primo a segnalare: USGS dopo 4 minuti.
Sep 6 19:26: Magnitudine ricalcolata da 3.4 a 3.2.
Profondità ricalcolata da 10.1 a 8.9 km.
Update Mon, 7 Sep 2020, 11:08
Small earthquakes near downtown San Francisco widely felt
Location of yesterday's magnitude 3.2 quake near San Francisco
Location of yesterday's magnitude 3.2 quake near San Francisco
Two small earthquakes of magnitudes 2.6 and 3.4 occurred near downtown San Francisco yesterday noon, at 11:36 and 11:43 local time, respectively.
Their epicenters were close to San Leandro, about 20 km from the city center.
Although the quakes were very small and pose no danger, many people felt and reported them. In most cases, only a light and quick shake was felt that lasted less than 2 seconds.

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Earthquake data

Data & ora: 6 Sep 2020 18:43:57 UTC -
Ora locale a epicentro: 6 Sep 2020 11:36 am
Magnitudine: 3.2
Prof.: 8.9 km
Epicentro latitudine / longitudine: 37.7155°N / 122.12717°W (Contea di Alameda, Contea di Kern, Stati Uniti)
Antipode: 37.716°S / 57.873°E
Vulcano più vicino: Clear Lake (150 km / 93 mi)
Nearby towns and cities:
3 km NNO da Ashland (pop: 21,900) --> Vedi sismi vicini
3 km ESE da San Leandro (pop: 90,700) --> Vedi sismi vicini
4 km N da San Lorenzo (pop: 23,500) --> Vedi sismi vicini
4 km ONO da Castro Valley (pop: 61,400) --> Vedi sismi vicini
7 km NO da Hayward (pop: 158,300) --> Vedi sismi vicini
13 km ESE da Alameda (pop: 78,600) --> Vedi sismi vicini
15 km OSO da San Ramon (pop: 76,100) --> Vedi sismi vicini
16 km SE da Oakland (pop: 419,300) --> Vedi sismi vicini
27 km ESE da San Francisco (pop: 864,800) --> Vedi sismi vicini
111 km SSO da Sacramento (pop: 490,700) --> Vedi sismi vicini
Fonte dati primaria: USGS (United States Geological Survey)
Stima dell'energia sismica liberata: 4 x 109 joules (1.11 MWh, equivalent to 0.951 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
3.28.9 km3km ESE of San Leandro, CA (USA)USGS

User reports for this quake (93)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Upper Dimond District, Oakland, CA (11.3 km NW of epicenter) [Map] / Weak shaking (MMI III) / simple rolling (tilting sideways along one direction) / 2-5 s : Simple rolling with a duration of approx 3 sec. | 2 users found this interesting.  
San Leandro, at home (2.5 km W of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / very short : It was like a quick shake that last 1-2 seconds - just enough for you to feel it and noticed | 2 users found this interesting.  
Danville, Ca (17.3 km NE of epicenter) [Map] / not felt / single lateral shake / very short : Just a quick little jolt. | 2 users found this interesting.  
Alameda, CA (10.5 km WNW of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / 1-2 s : I felt a jolt, then a short pause, then a few longer, firmer jolts, then it ended. | 2 users found this interesting.  
North Richmond, Contra Costa, California (34.7 km NW of epicenter) [Map] / not felt : Did not notice anything at 2377 Garden Tract Rd in Richmond. | One user found this interesting.  
San Ramon, Contra Costa, California (17.4 km ENE of epicenter) [Map] / Light shaking (MMI IV) : It was quick jolt | One user found this interesting. (reported through our app)  
Hayward Ca (5.7 km SSE of epicenter) [Map] / Very weak shaking (MMI II) : I felt one a hour ago and second one 12:51pm | One user found this interesting.  
Move my house (0.5 km WSW of epicenter) [Map] / Moderate shaking (MMI V) / 1-2 s : Shake strong | One user found this interesting. (reported through our app)  
Oakland, Alameda, California (18.1 km NW of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / very short
Union City, Alameda, California (14.1 km SSE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 1-2 s
Alameda, California (11.1 km WNW of epicenter) [Map] / Weak shaking (MMI III) (reported through our app)
Blackhawk, Contra Costa, California (23.1 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / very short
Fremont (37.2 km SSE of epicenter) [Map] / Moderate shaking (MMI V) / very short (reported through our app)
Berkeley, Alameda, California (21.9 km NW of epicenter) [Map] / Weak shaking (MMI III)
Waldon, Contra Costa (23.1 km NNE of epicenter) [Map] / Light shaking (MMI IV) / 1-2 s
HAYWARD (8 km ESE of epicenter) [Map] / Very weak shaking (MMI II)
Orinda, Contra Costa, California (18.4 km NNW of epicenter) [Map] / Weak shaking (MMI III)
Fairview, Alameda, California (13.3 km ESE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s
Piedmont, Alameda, California (8.9 km NW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s
Burlingame, San Mateo, California (25.1 km SW of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s
San Francisco (27 km W of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Walnut Creek (20.4 km NNE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s
San Lorenzo, Alameda, California (5.7 km S of epicenter) [Map] / Moderate shaking (MMI V) / 1-2 s
San Mateo, CA (24.9 km SW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Berkeley, Alameda, California (20.2 km NW of epicenter) [Map] / Moderate shaking (MMI V) / 1-2 s
El Sobrante, Contra Costa, California (32.2 km NNW of epicenter) [Map] / Very weak shaking (MMI II) (reported through our app)
Hayward Burbank neighborhood / Light shaking (MMI IV) : A sharp jolt upward (I was standing and grabbed the sink I was next to, on the second floor) and a loud noise as if the building had bounced. | 4 users found this interesting.  
Moraga, CA / Light shaking (MMI IV) / 1-2 s : At first I thought the sound was a low-flying jet passing overhead, which would have been odd because I'm not near an airport. Then I saw the medicine cabinet mirror moving. It only lasted a couple seconds. | 3 users found this interesting.  
Foster City / Weak shaking (MMI III) / very short : Both husband and I were sitting on the same couch but at opposite ends. I felt it but he didn’t. I was sitting closer to Street so thought it was a big truck. Felt like a strong jolt. Son upstairs sleeping felt it. | 3 users found this interesting.  
San Ramon / Very weak shaking (MMI II) / 2-5 s : I was talking to mom in San Leandro when she felt it in San Leandro. In 5-7 seconds later I felt it in San Ramon for about 2-5 saddle shaking. | 3 users found this interesting.  
San Leandro / Light shaking (MMI IV) / single lateral shake / 1-2 s : It is very short and just like the second you have a rush stop of your car and the second it stops and freeze | One user found this interesting.  
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