Weak mag. 1.9 earthquake - 6km E of Milpitas, CA, USA, on Monday, 22 Feb 2021 9:06 pm (GMT -8) -
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Weak magnitude 1.9 earthquake at 0 km depth
23 Feb 05:09 UTC: First to report: USGS after 2 minutes.
23 Feb 20:26: Magnitude recalculated from 2.1 to 1.9. Hypocenter depth recalculated from 1.0 to 0.2 km (from 0.6 to 0.1 mi).
23 Feb 20:26: Magnitude recalculated from 2.1 to 1.9. Hypocenter depth recalculated from 1.0 to 0.2 km (from 0.6 to 0.1 mi).
I felt this quake
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Local time at epicenter: Monday, 22 Feb 2021 9:06 pm (GMT -8)
Magnitude: 1.9
Depth: 0.2 km
Epicenter latitude / longitude: 37.42383°N / 121.83467°W
(California, United States)Nearest volcano: Clear Lake (190 km / 118 mi)
Nearby towns and cities:
5 km (3 mi) NNW of East Foothills (pop: 8,270) --> See nearby quakes!
6 km (4 mi) E of Milpitas (pop: 77,600) --> See nearby quakes!
6 km (4 mi) N of Alum Rock (pop: 15,500) --> See nearby quakes!
11 km (7 mi) NNE of San Jose (pop: 1,026,900) --> See nearby quakes!
13 km (8 mi) NE of Santa Clara (pop: 126,200) --> See nearby quakes!
19 km (12 mi) ENE of Sunnyvale (pop: 151,800) --> See nearby quakes!
19 km (12 mi) SE of Fremont (pop: 232,200) --> See nearby quakes!
21 km (13 mi) ENE of Cupertino (pop: 60,600) --> See nearby quakes!
22 km (14 mi) E of Mountain View (pop: 80,400) --> See nearby quakes!
65 km (40 mi) SE of San Francisco (pop: 864,800) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
12.9°C (55 F), humidity: 67%, wind: 2 m/s (3 kts)
Primary data source: USGS (United States Geological Survey)Clear Sky
12.9°C (55 F), humidity: 67%, wind: 2 m/s (3 kts)Estimated released energy: 4.5 x 107 joules (12.4 kilowatt hours) More info
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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.
| Magnitude | Depth | Location | Source |
| M 1.9 | 0.2 km | 6km E of Milpitas, CA, USA | USGS |
| M 2.1 | 1 km | SAN FRANCISCO BAY AREA, CALIF., USA | EMSC |
User reports for this quake (3)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
At magnitude 1.9, this quake was too small to be felt by humans, but it was recorded instrumentally.
