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Strong mag. 5.2 earthquake - Philippine Sea, 84 km southeast of Okinawa, Japan, on Sunday, Jan 3, 2021 at 2:24 pm (GMT +9)

Strong mag. 5.2 earthquake - Philippine Sea, 84 km southeast of Okinawa, Japan, on Sunday, Jan 3, 2021 at 2:24 pm (GMT +9) Strong mag. 5.2 earthquake - Philippine Sea, 84 km southeast of Okinawa, Japan, on Sunday, Jan 3, 2021 at 2:24 pm (GMT +9)

Strong magnitude 5.2 earthquake at 10 km depth

3 Jan 05:37 UTC: First to report: GFZ after 13 minutes.
Update Sun, 3 Jan 2021, 05:42

Significant earthquake of magnitude 5.2 just reported 84 km southeast of Okinawa, Japan

5.2 quake 3 Jan 2:24 pm (GMT +9)
5.2 quake 3 Jan 2:24 pm (GMT +9)
A magnitude 5.2 earthquake near Okinawa, Okinawa Shi, Japan, was reported only 18 minutes ago by the German Research Centre for Geosciences (GFZ), considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at a shallow depth of 10 km beneath the epicenter early afternoon on Sunday 3 January 2021 at 2:24 pm local time. 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.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 5.0 earthquake.
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 Katsuren-haebaru (pop. 34,200) located 78 km from the epicenter, Gushikawa (pop. 65,300) 80 km away, Ginowan (pop. 91,800) 83 km away, Okinawa (pop. 125,500) 84 km away, Chatan (pop. 27,800) 85 km away, Itoman (pop. 57,200) 86 km away, Tomigusuku (pop. 55,700) 87 km away, Naha (pop. 300,800) 88 km away, and Nago (pop. 59,600) 93 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 details

Date & timeJan 3, 2021 05:24:16 UTC
Local time at epicenterSunday, Jan 3, 2021 at 2:24 pm (GMT +9)
Depth10.0 km
Epicenter latitude / longitude25.92°N / 128.5°E (Philippine Sea, Japan)
Antipode25.92°S / 51.5°W
Shaking intensityLight shaking
Felt4 reports
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearest volcanoIo-Torishima (219 km / 136 mi)
Nearby towns and cities78 km (48 mi) SE of Katsuren-haebaru (Uruma) (pop: 34,200) | Show on map | Quakes nearby
80 km (50 mi) SE of Gushikawa (pop: 65,300) | Show on map | Quakes nearby
83 km (52 mi) ESE of Chinon (pop: 91,800) | Show on map | Quakes nearby
84 km (52 mi) ESE of Okinawa (pop: 125,500) | Show on map | Quakes nearby
85 km (53 mi) ESE of Chatan (Nakagami District) (pop: 27,800) | Show on map | Quakes nearby
86 km (54 mi) ESE of Itoman (pop: 57,200) | Show on map | Quakes nearby
87 km (54 mi) ESE of Tomigusuku (pop: 55,700) | Show on map | Quakes nearby
88 km (55 mi) SE of Ishikawa (Uruma) (pop: 22,400) | Show on map | Quakes nearby
88 km (55 mi) ESE of Naha (pop: 300,800) | Show on map | Quakes nearby
93 km (58 mi) SE of Naga (pop: 59,600) | Show on map | Quakes nearby
87 km (54 mi) SE of Okinawa Island (pop: 1,301,000) | Show on map | Quakes nearby
114 km (71 mi) SE of Iejima Island (pop: 4,610) | Show on map | Quakes nearby
Weather at epicenter at time of quakeBroken Clouds 19.3°C (67 F), humidity: 73%, wind: 9 m/s (17 kts) from E
Estimated seismic energy released4 x 1012 joules (1.11 gigawatt hours, equivalent to 951 tons of TNT) | about seismic energy
Show interactive Map
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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.
5.210 km- 77 km SE of Katsuren-haebaru, JapanGFZ
5.110 km77 Km SE of Katsuren-haebaru, JapanUSGS
5.010.1 kmRyukyu Islands, JapanGeoAu


Seismic station: Taipei, Taiwan (TATO/IU network) | Distance from quake: 711 km / 442 mi | Show on map | Station Info
Seismic station Taipei, Taiwan: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
Show more

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.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Okinawa / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : My dog heard it before it hit. I’m on the 8th of an apartment building in Okinawa. It was light shaking that increased to lightly moderate shaking. I mostly felt horizo | 4 users found this interesting.  
Chinon, Ginowan Shi, Okinawa (86.6 km WNW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s
Okinawa city / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s
San Fernando City / Very weak shaking (MMI II) / single lateral shake / 1-2 s


[More info]

Recorded aftershocks, latest first (1 quake)

Date and timeMag
Jan 3, 2021 06:42
1 year 39 weeks ago

10 km
Philippine Sea, 82 km E of Okinawa, JapanMore

Earlier earthquakes in the same area

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