Event status: disregarded [?]

Reported seismic-like event (likely no quake): 6.1 mi northeast of San Diego, California, USA, Sep 18, 2021 5:33 am (GMT -7) -

Reported seismic-like event (likely no quake): 6.1 mi northeast of San Diego, California, USA, Sep 18, 2021 5:33 am (GMT -7)
18 Sep 12:39 UTC: First to report: VolcanoDiscovery after 6 minutes.
Date & time: Sep 18, 2021 12:33:20 UTC -
Local time at epicenter: Saturday, Sep 18, 2021 5:33 am (GMT -7)
Magnitude: 3?
Depth: 10.0 km
Epicenter latitude / longitude: 32.78637°N / 117.10055°W (San Diego, California, United States)
Antipode: 32.786°S / 62.899°E
Nearest volcano: Salton Buttes (146 km / 91 mi)
Nearby towns and cities:
8 km (5 mi) WNW of La Mesa (pop: 60,100) --> See nearby quakes!
8 km (5 mi) NW of Lemon Grove (San Diego County) (pop: 26,700) --> See nearby quakes!
10 km (6 mi) NE of San Diego (pop: 1,394,900) --> See nearby quakes!
11 km (7 mi) WNW of Spring Valley (San Diego County) (pop: 28,200) --> See nearby quakes!
12 km (7 mi) N of National City (pop: 61,100) --> See nearby quakes!
13 km (8 mi) W of El Cajon (pop: 103,700) --> See nearby quakes!
13 km (8 mi) WSW of Santee (pop: 57,800) --> See nearby quakes!
15 km (9 mi) SSE of Mira Mesa (pop: 70,000) --> See nearby quakes!
16 km (10 mi) N of Chula Vista (pop: 265,800) --> See nearby quakes!
757 km (470 mi) SSE of Sacramento (pop: 490,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 17.4°C (63 F), humidity: 83%, wind: 0 m/s (1 kts) from NNW
Primary data source: VolcanoDiscovery
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User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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La Mesa, San Diego, California (0 km W of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / several minutes : laying still in bed and felt the bed moving repeatedly  
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