Minor mag. 3.4 earthquake - 10km NE of Milpitas, CA (USA), on Monday, 17 August 2020 at 20:27 (GMT) -

Minor mag. 3.4 earthquake  - 10km NE of Milpitas, CA (USA), on Monday, 17 August 2020 at 20:27 (GMT)

Minor magnitude 3.4 earthquake at 5 km depth

18 Aug 03:04 UTC: Premier à signaler: USGS après 7 heures.
Date & time: 17 Aug 2020 08:27:49 UTC -
Magnitude: 3.4
Profondeur: 4.9 km
Epicenter latitude / longitude: 37.491°N / 121.829°W (États-Unis)
Volcan le plus près: Clear Lake (184 km / 114 mi)
Nearby towns and cities:
10 km NE de Milpitas (Santa Clara County) (pop: 77,600)
15 km SE de Fremont (Alameda County) (pop: 232,200)
18 km NE de San Jose (pop: 1,026,900)
19 km SE de Pleasanton (Alameda County) (pop: 79,500)
23 km NE de Sunnyvale (Santa Clara County) (pop: 151,800)
30 km SE de Hayward (Alameda County) (pop: 158,300)
61 km SE de San Francisco (pop: 864,800)
125 km SW de Sacramento (pop: 490,700)
Primary data source: USGS
Estimated released energy: 7.9 x 109 joules (2.21 megawatt hours, equivalent to 1.9 tons of TNT) [learn more]
[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!
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.
M 3.44.9 km10km NE of Milpitas, CA (USA)USGS
M 3.44.9 km10km NE of Milpitas, CA (USA)USGS

User reports for this quake (1)

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!
San Jose, CA / Strong shaking (MMI VI) : It was one strong jolt and not repeated shaking.
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Minor mag. 3.4 earthquake - 10km NE of Milpitas, CA (USA), on Monday, 17 August 2020 at 20:27 (GMT)
Volcanoes & Earthquakes - new app for Android

Plus sur VolcanoDiscovery

Why is there advertising on this site?

Support us!

Maintaining the website and our free apps is a time- and cost-intensive effort.
If you find the information useful and would like to support our team to develop further features and get the upgraded ad-free version, consider making a donation (PayPal or Online cc payment).
Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
Thanks to your past donations, these features have been added recently:
  • Earthquake archive back to 1900
  • Additional data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyright: VolcanoDiscovery ou autres sources indiquées.
Utilisation des documents: Les textes, les images et les vidéos de ce site internet sont protégées par copyright. Toute reproduction et tout usage sans accord préalable ne sont pas autorisés. Si vous désirez acquérir pour certains documents (photos, vidéos, textes ou autres) le droit de reproduction, d'édition et, plus généralement, de toute utilisation destinée à un usage public, qu'elle soit commerciale ou pas, vous êtes priés de nous contacter.