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Event status: highly uncertain [?]

Reported quake or seismic-like event: 42 mi south of Roseville, Placer County, California, USA, Friday, Oct 15, 2021 at 9:50 pm (GMT -7) -

Reported quake or seismic-like event: 42 mi south of Roseville, Placer County, California, USA, Friday, Oct 15, 2021 at 9:50 pm (GMT -7) Reported quake or seismic-like event: 42 mi south of Roseville, Placer County, California, USA, Friday, Oct 15, 2021 at 9:50 pm (GMT -7)
16 Oct 04:53 UTC: First to report: VolcanoDiscovery after 3 minutes.

Earthquake details

Date & timeOct 16, 2021 04:50:02 UTC -
Local time at epicenterFriday, Oct 15, 2021 at 9:50 pm (GMT -7)
Statushighly uncertain
Magnitudeunknown
Depth10.0 km
Epicenter latitude / longitude38.16344°N / 121.10897°W (Placer, California, United States)
Antipode38.163°S / 58.891°E
Shaking intensityVery weak shaking
Felt4 reports
Primary data sourceVolcanoDiscovery (User-reported shaking)
Nearest volcanoClear Lake (170 km / 106 mi)
Nearby towns and cities9 km (6 mi) ENE of Victor (pop: 293) | Show on map | Quakes nearby
15 km (9 mi) ENE of Lodi (pop: 64,600) | Show on map | Quakes nearby
20 km (12 mi) ESE of Galt (pop: 25,300) | Show on map | Quakes nearby
28 km (17 mi) NE of Stockton (pop: 305,700) | Show on map | Quakes nearby
36 km (22 mi) SE of Elk Grove (pop: 166,900) | Show on map | Quakes nearby
39 km (24 mi) SSE of Vineyard (pop: 24,800) | Show on map | Quakes nearby
42 km (26 mi) NNE of Manteca (pop: 75,400) | Show on map | Quakes nearby
45 km (28 mi) SE of Florin (pop: 47,500) | Show on map | Quakes nearby
57 km (36 mi) SE of Sacramento (pop: 490,700) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 16°C (61 F), humidity: 46%, wind: 0 m/s (0 kts)
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User reports for this quake (6)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Roseville, Placer, California (64.9 km NNW of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s : Brief pulsing, 2-3 seconds  
roseville / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s
Rosevill / not felt
Roseville / Moderate shaking (MMI V) / horizontal (sideways) swinging / 5-10 s : Bed shaking  
Doing laundry / not felt : I got dizzy  
Ceres, CA (64.9 km SSE of epicenter) [Map] / Very weak shaking (MMI II) / vibration and rolling / 1-2 minutes
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