Light mag. 4.7 earthquake - Philippine Sea, 59 km east of Taipeh, Taipei City, Taiwan, on Monday, Dec 6, 2021 9:05 pm (GMT +8) -

Light mag. 4.7 earthquake - Philippine Sea, 59 km east of Taipeh, Taipei City, Taiwan, on Monday, Dec 6, 2021 9:05 pm (GMT +8)

Light magnitude 4.7 earthquake at 105 km depth

6 Dec 13:14 UTC: First to report: EMSC after 9 minutes.
6 Dec 13:31: Magnitude recalculated from 5.3 to 4.7. Hypocenter depth recalculated from 106.0 to 98.0 km (from 66 to 61 mi). Epicenter location corrected by 4.2 km (2.6 mi) towards ENE.
... [show all] ...
12 Dec 19:46: Hypocenter depth recalculated from 104.1 to 104.7 km (from 65 to 65 mi). Epicenter location corrected by 1.1 km (0.7 mi) towards ESE.
Update Mon, 6 Dec 2021, 13:18
Moderate yet deep magnitude 5.3 earthquake 57 km southeast of Taipeh, Taiwan
5.3 quake 6 Dec 9:05 pm (GMT +8)
5.3 quake 6 Dec 9:05 pm (GMT +8)
An intermediate magnitude 5.3 earthquake was reported in the evening near Taipeh, Taipei City, Taiwan.
According to the European-Mediterranean Seismological Centre (EMSC), the quake hit on Monday, December 6th, 2021, at 9:05 pm local time at an intermediate depth of 106 km. The strength of the earthquake may have been tempered by its relative great depth below the surface, which makes it feel weaker in absolute terms. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Yilan (pop. 94,200) located 33 km from the epicenter, Keelung (pop. 397,500) 44 km away, Taipeh (pop. 7,871,900) 57 km away, Banciao (pop. 543,300) 62 km away, Daxi (pop. 84,500) 78 km away, Taoyuan City (pop. 402,000) 78 km away, Hualien City (pop. 350,500) 109 km away, and Hsinchu (pop. 404,100) 110 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Earthquake data

Date & time: Dec 6, 2021 13:05:51 UTC -
Local time at epicenter: Monday, Dec 6, 2021 9:05 pm (GMT +8)
Magnitude: 4.7
Depth: 104.7 km
Epicenter latitude / longitude: 24.8504°N / 122.0795°E (Philippine Sea, Taiwan)
Antipode: 24.85°S / 57.921°W
Nearest volcano: Kueishantao (16 km / 10 mi)
Nearby towns and cities:
35 km (21 mi) ENE of Yilan (pop: 94,200) --> See nearby quakes!
46 km (29 mi) SE of Keelung (pop: 397,500) --> See nearby quakes!
59 km (37 mi) ESE of Taipei (pop: 7,871,900) --> See nearby quakes!
64 km (40 mi) ESE of Banciao (pop: 543,300) --> See nearby quakes!
80 km (50 mi) E of Daxi (pop: 84,500) --> See nearby quakes!
81 km (50 mi) E of Taoyuan City (pop: 402,000) --> See nearby quakes!
108 km (67 mi) NNE of Hualien City (pop: 350,500) --> See nearby quakes!
112 km (70 mi) E of Hsinchu (pop: 404,100) --> See nearby quakes!
149 km (93 mi) NE of Puli (pop: 86,400) --> See nearby quakes!
307 km (191 mi) NE of Kaohsiung City (pop: 1,519,700) --> See nearby quakes!
102 km (63 mi) WNW of Kumi Island (pop: 1,680) --> See nearby quakes!
259 km (161 mi) ESE of Matsu Island (pop: 4,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.1 x 1011 joules (197 megawatt hours, equivalent to 169 tons of TNT) | 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.
4.7105 km34 Km ENE of Yilan, TaiwanUSGS
4.7100 kmTaiwan RegionGFZ
4.7104 kmTaiwan RegionRaspberryShake

User reports for this quake (4)

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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Taipei City / Moderate shaking (MMI V) / both vertical and horizontal swinging / 10-15 s : Scary. The intensity was at least 3 because I was in a high building. | One user found this interesting.  
Taipeh (58.3 km WNW of epicenter) [Map] / Weak shaking (MMI III) / 10-15 s
HsinChu / Weak shaking (MMI III) / horizontal (sideways) swinging
Taipei / Weak shaking (MMI III) / complex rolling (tilting in multiple directions) / 2-5 s (reported through our app)
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