Light mag. 3.2 earthquake - 1.7 mi east of San Leandro, California, USA, on 6 Sep 2020 11:36 am -

Light mag. 3.2 earthquake - 1.7 mi east of San Leandro, California, USA, on 6 Sep 2020 11:36 am

Light magnitude 3.2 earthquake at 9 km depth

6 Sep 18:47 UTC: First to report: USGS after 4 minutes.
Sep 6 19:26: Magnitude recalculated from 3.4 to 3.2.
Hypocenter depth recalculated from 10.1 to 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.

Download the Volcanoes & Earthquakes app and get one of the fastest seismic alerts online:
Android | iOS

Earthquake data

Date & time: Sep 6, 2020 18:43:57 UTC -
Local time at epicenter: 6 Sep 2020 11:36 am
Magnitude: 3.2
Depth: 8.9 km
Epicenter latitude / longitude: 37.7155°N / 122.12717°W (Alameda, California, United States)
Antipode: 37.716°S / 57.873°E
Nearest volcano: Clear Lake (150 km / 93 mi)
Nearby towns and cities:
3 km (2 mi) NNW of Ashland (pop: 21,900) --> See nearby quakes!
3 km (2 mi) ESE of San Leandro (pop: 90,700) --> See nearby quakes!
4 km (2 mi) N of San Lorenzo (pop: 23,500) --> See nearby quakes!
4 km (3 mi) WNW of Castro Valley (pop: 61,400) --> See nearby quakes!
7 km (4 mi) NW of Hayward (pop: 158,300) --> See nearby quakes!
13 km (8 mi) ESE of Alameda (pop: 78,600) --> See nearby quakes!
15 km (9 mi) WSW of San Ramon (pop: 76,100) --> See nearby quakes!
16 km (10 mi) SE of Oakland (pop: 419,300) --> See nearby quakes!
27 km (16 mi) ESE of San Francisco (pop: 864,800) --> See nearby quakes!
111 km (69 mi) SSW of Sacramento (pop: 490,700) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 4 x 109 joules (1.11 megawatt hours, equivalent to 0.951 tons of TNT) More info
Show interactive Map
[smaller] [bigger]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
If you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable to earthquake science, seismic hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.DepthLocationSource
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.
Contribute:
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Translate
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.  
Newark, CA / Very weak shaking (MMI II) / very short : It felt like something hit the house twice. It was more intense the first time and they were a few seconds apart. | One user found this interesting.  
San Lorenzo ca 94580 / Light shaking (MMI IV) / single lateral shake / very short : Felt a preshock of about .10 seconds a few minutes prior. Then felt a sideways motion for about 0.5 seconds. | One user found this interesting.  
Dublin / Very weak shaking (MMI II) / rattling, vibrating : Slight shaking for less than 2 seconds. Very light vibrations felt. Did not feel the 2.6 quake minutes before but was definitely aware that this one(3.4)was an earthquake:  
Alameda / Very weak shaking (MMI II) / single vertical bump / 1-2 s : There was a loud solid noise and then the shower tremmers | 2 users found this interesting.  
San Ramon / Very weak shaking (MMI II) / 1-2 s : Sitting on bed. Felt like the dog was under the the bed trying to get out from under the bed | One user found this interesting.  
Hayward / Weak shaking (MMI III) / single lateral shake / very short : Short, but definitely felt a jolt. | One user found this interesting.  
Marina Bay Richmond / Moderate shaking (MMI V) : Woke me from a sound sleep. Sharp and loud. | One user found this interesting.  
San Leandro, ca 94579 / Light shaking (MMI IV) / 2-5 s : Felt like a big truck was driving in the street | One user found this interesting.  
San Lorenzo, Ca / Light shaking (MMI IV) : Felt a good rumble and shake | One user found this interesting.  
Oakland / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Just a quick weak shake and jolt. | One user found this interesting.  
Zip code 94080 / Very weak shaking (MMI II) : I live in South San Francisco, CA. Across the San Francisco Bay | One user found this interesting.  
Hayward / Light shaking (MMI IV) / 2-5 s : Building swayed | One user found this interesting.  
Daly City / Weak shaking (MMI III) : Igeard cracking and boom, short. And minor shake | One user found this interesting.  
Daly City / Weak shaking (MMI III) : Igeard cracking and boom, short. And minor shake  
Pacifia / Very weak shaking (MMI II) / single lateral shake / very short
San Mateo / Weak shaking (MMI III)
Walnut Creek / Light shaking (MMI IV) / single vertical bump / very short
San Mateo / Weak shaking (MMI III)
Daly City / Very weak shaking (MMI II) / 1-2 s
Walnut Creek / Weak shaking (MMI III)
Pacifia / Very weak shaking (MMI II) / single lateral shake / very short
San Leandro / Light shaking (MMI IV)
Moraga / Weak shaking (MMI III) / single lateral shake / 1-2 s
San leandro / Light shaking (MMI IV) / simple rolling (tilting sideways along one direction) / 1-2 s
94478 / Very weak shaking (MMI II)
Oakland / Weak shaking (MMI III) / single lateral shake / very short
Oakland, CA / Light shaking (MMI IV)
San Leandro / Light shaking (MMI IV)
Cherryland Ca / Moderate shaking (MMI V) / rattling, vibrating / very short
San ramon / Light shaking (MMI IV) / single vertical bump / very short
Moraga, CA / Very weak shaking (MMI II) / single lateral shake / very short
94582 / Very weak shaking (MMI II) / horizontal (sideways) swinging / 5-10 s
Alameda,CA / Moderate shaking (MMI V) / 1-2 s
Alameda, CA / Weak shaking (MMI III) / 1-2 s
94611 / Very weak shaking (MMI II) / single vertical bump
Oakland, CA 94612, USA / Moderate shaking (MMI V) / single lateral shake / 2-5 s
CASTRO VALLEY / Very weak shaking (MMI II) / single lateral shake / very short
Hayward, 2nd floor bedroom / Light shaking (MMI IV) / rattling, vibrating
Martinez / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s
Hayward / Moderate shaking (MMI V) / 1-2 s
Albany, Ca / Very weak shaking (MMI II) / simple rolling (tilting sideways along one direction)
94080 / Very weak shaking (MMI II) / horizontal (sideways) swinging / 1-2 s
Pleasant Hill / Weak shaking (MMI III)
Oakland / Very weak shaking (MMI II) / very short
San leandro / Moderate shaking (MMI V) / horizontal (sideways) swinging / 2-5 s
890 Maud Ave San Leandro. CA / Weak shaking (MMI III) / simple rolling (tilting sideways along one direction) / 1-2 s
Downtown San Leandro / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
Burlingame, CA / not felt
Walnut Creek / Light shaking (MMI IV) / single vertical bump / very short
San Mateo / Weak shaking (MMI III)
San Leandro / Light shaking (MMI IV)
Oakland / Very weak shaking (MMI II) / single lateral shake / 2-5 s
Oakland / Light shaking (MMI IV) / single vertical bump / 1-2 s
DSF4, San Leandro, CA / Very weak shaking (MMI II)
Oakland ca / Light shaking (MMI IV) / 2-5 s
fremont, ca / Weak shaking (MMI III)
Berkeley / Very weak shaking (MMI II) / rattling, vibrating / very short
Walnut Creek / not felt
Hayward ca / Light shaking (MMI IV) / single vertical bump / 1-2 s
94541 / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
Alameda / Very weak shaking (MMI II) / 1-2 s
Castro Valley / Light shaking (MMI IV) / single lateral shake / 2-5 s
Show more
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version
Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Detailed quake stats
  • Additional seismic data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.