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Weak mag. 2.2 earthquake - 4km WSW of Paso Robles, CA, on Monday, Dec 20, 2021 at 6:21 am (GMT -8) -

Weak mag. 2.2 earthquake - 4km WSW of Paso Robles, CA, on Monday, Dec 20, 2021 at 6:21 am (GMT -8) Weak mag. 2.2 earthquake - 4km WSW of Paso Robles, CA, on Monday, Dec 20, 2021 at 6:21 am (GMT -8)

Weak magnitude 2.2 earthquake at 6 km depth

20 Dec 14:23 UTC: First to report: USGS after 2 minutes.

Earthquake details

Date & timeDec 20, 2021 14:21:58 UTC -
Local time at epicenterMonday, Dec 20, 2021 at 6:21 am (GMT -8)
Depth5.5 km
Epicenter latitude / longitude35.61317°N / 120.7165°W (California, United States)
Antipode35.613°S / 59.284°E
Shaking intensityWeak shaking
Felt4 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoGolden Trout Creek (231 km / 144 mi)
Nearby towns and cities3 km (2 mi) SW of Paso Robles (San Luis Obispo County) (pop: 27,200) | Show on map | Quakes nearby
14 km (9 mi) NNW of Atascadero (San Luis Obispo County) (pop: 29,800) | Show on map | Quakes nearby
16 km (10 mi) S of San Miguel (San Luis Obispo County) (pop: 2,340) | Show on map | Quakes nearby
20 km (12 mi) SE of Lake Nacimiento (pop: 2,410) | Show on map | Quakes nearby
25 km (15 mi) NE of Cayucos (pop: 2,590) | Show on map | Quakes nearby
30 km (19 mi) NNE of Morro Bay (San Luis Obispo County) (pop: 10,600) | Show on map | Quakes nearby
35 km (22 mi) NNE of Los Osos (San Luis Obispo County) (pop: 14,300) | Show on map | Quakes nearby
37 km (23 mi) N of San Luis Obispo (pop: 47,300) | Show on map | Quakes nearby
78 km (48 mi) NNW of Santa Maria (pop: 105,100) | Show on map | Quakes nearby
125 km (78 mi) SW of Hanford (pop: 55,700) | Show on map | Quakes nearby
Weather at epicenter at time of quakeMist 3.5°C (38 F), humidity: 92%, wind: 0 m/s (0 kts)
Estimated seismic energy released1.3 x 108 joules (35 kilowatt hours) | about seismic energy
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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.
2.25.5 km4km WSW of Paso Robles, CAUSGS
2.25.5 kmCentral CaliforniaRaspberryShake

User reports for this quake (4)

At magnitude 2.2, such a quake wouldn't normally be felt by people except under very favorable conditions.
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.
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Paso Robles (11.1 km NW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : Just home from Swim, sat down to go Thru the Mail..... Thought a Raccoon ran across the roof, Then Felt it in the Floor  
Resting / Very weak shaking (MMI II) / single lateral shake / 1-2 s : Short lateral shake. Very mild  
Paso Robles / Weak shaking (MMI III) / single lateral shake / 1-2 s
833 Gahan place, Paso Robles, ca 93446 / Light shaking (MMI IV) : Husband was awake. He felt the shaking. I woke up not knowing why. He told me it was an earthquake.  
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