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Minor mag. 3.3 earthquake - 10km NE of Milpitas, CA (USA) on Monday, 17 August 2020

Minor mag. 3.3 earthquake  - 10km NE of Milpitas, CA (USA) on Monday, 17 August 2020
17 Aug 20:31 UTC: First to report: USGS after 4 minutes.
Date & time: Monday, 17 August 2020 20:27 UTC
Magnitude: 3.3
Depth: 4.2 km
Epicenter latitude / longitude: 37.49166°N / 121.82716°W (United States)
Nearest volcano: Clear Lake (184 km / 114 mi)
Nearby towns and cities:
10 km (6 mi) NE of Milpitas (pop: 77,600)
12 km (8 mi) N of East Foothills (pop: 8,300)
13 km (8 mi) SE of Sunol (pop: 900)
18 km (11 mi) NE of San Jose (pop: 1,026,900)
61 km (38 mi) SE of San Francisco (pop: 864,800)
125 km (77 mi) SW of Sacramento (pop: 490,700)
Primary data source: USGS
Estimated released energy: 5.6 x 109 joules (1.56 megawatt hours, equivalent to 1.34 tons of TNT) [learn more]
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!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake 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.
TimeMag. / DepthLocationSource
Mon, 17 Aug 20:27 UTCM 3.3 / 4.2 km10km NE of Milpitas, CA (USA)USGS
Mon, 17 Aug 20:27 UTCM 3.2 / 5 kmNorthern California (USA)EMSC

User reports for this quake (20)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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!
Milpitas (8.9 km SSW of epicenter) [Map] / Very weak shaking (MMI II) : Just a quick jolt (reported through our app)
near 87 and Capital Expressway, San Jose (24.2 km S of epicenter) [Map] / Light shaking (MMI IV)
Milpitas (11 km SW of epicenter) [Map] / Weak shaking (MMI III) (reported through our app)
12.3 km SSW of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
East Petaluma / Very weak shaking (MMI II) : Sitting in downstairs area of home built on adobe soil, concrete slap. Heard a crack and slight wave like movement while sitting quietly on s couch. Husband doing same thing same place also heard and felt it.
San Jose, CA / Moderate shaking (MMI V) : It was a single jolt with a loud noise.
Milpitas, CA / Light shaking (MMI IV)
Milpitas / Light shaking (MMI IV)
Milpitad ca / Light shaking (MMI IV)
Milipitas / Weak shaking (MMI III)
Milpitas, CA / Weak shaking (MMI III)
Davis (United States, 117 km N of epicenter) : Nothing (reported through EMSC)
Noe Valley (United States, 61 km NW of epicenter) : Nothing-Twin Peaks (reported through EMSC)
Noe Valley (United States, 61 km NW of epicenter) : Nothing (reported through EMSC)
North Fair Oaks (United States, 32 km W of epicenter) : Redwood City, Ca. Next to 101. I thought I felt something as I was working in my garage. Just a little shake for a second or 2. (reported through EMSC)
Hayward (United States, 30 km NW of epicenter) : I felt like I was getting light headed. Thought I felt the earth moving and I was right.I'm in Hayward. (reported through EMSC)
San Jose (United States of America, 18 km S of epicenter) : It's coming, I can sense it. At least a 4.5 (reported through EMSC)
Palo Alto (United States, 28 km W of epicenter) : Little shake in third floor apartment. (reported through EMSC)
San Jose (United States of America, 24 km S of epicenter) : There was a squeek, which I first mistook for my son walking on an upper floor, and then a 1-2 second horizontal shake. (reported through EMSC)
Milpitas (United States, 17 km SW of epicenter) : Small shake in North San Jose, 4th floor (reported through EMSC)

Earlier earthquakes in the same area

Minor mag. 3.3 earthquake - 10km NE of Milpitas, CA (USA) on Monday, 17 August 2020

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