Moderate mag. 4.0 earthquake - East China Sea, 87 km north of Naze, Amami Shi, Kagoshima, Japan, on Saturday, Dec 4, 2021 11:59 pm (GMT +9) -

Moderate mag. 4.0 earthquake - East China Sea, 87 km north of Naze, Amami Shi, Kagoshima, Japan, on Saturday, Dec 4, 2021 11:59 pm (GMT +9)

Moderate magnitude 4.0 earthquake at 10 km depth

4 Dec 15:07 UTC: First to report: NIED after 8 minutes.
Update Sat, 4 Dec 2021, 15:12
Moderate magnitude 4.0 quake hits 87 km northeast of Naze, Japan late at night
4.0 quake 4 Dec 11:59 pm (GMT +9)
4.0 quake 4 Dec 11:59 pm (GMT +9)
A very shallow magnitude 4.0 earthquake was reported late at night near Naze, Amami Shi, Kagoshima, Japan.
According to Japan's National Research Institute for Earth Science and Disaster Resilience (NIED), the quake hit on Saturday, December 4th, 2021, at 11:59 pm local time at a very shallow depth of 9.7 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. 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.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Naze (pop. 41,400) located 87 km from the epicenter.

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Earthquake data

Date & time: Dec 4, 2021 14:59:24 UTC -
Local time at epicenter: Saturday, Dec 4, 2021 11:59 pm (GMT +9)
Magnitude: 4
Depth: 9.7 km
Epicenter latitude / longitude: 29.132°N / 129.671°E (East China Sea, Japan)
Antipode: 29.132°S / 50.329°W
Nearest volcano: Akuseki-jima (37 km / 23 mi)
Nearby towns and cities:
87 km (54 mi) NNE of Naze (pop: 41,400) --> See nearby quakes!
219 km (136 mi) SW of Nishinoomote (pop: 17,800) --> See nearby quakes!
245 km (152 mi) SSW of Makurazaki (pop: 25,000) --> See nearby quakes!
252 km (157 mi) SSW of Ibusuki (pop: 29,700) --> See nearby quakes!
262 km (163 mi) SSW of Kaseda-shirakame (Minamisatsuma) (pop: 23,700) --> See nearby quakes!
275 km (171 mi) SSW of Kanoya (pop: 82,300) --> See nearby quakes!
280 km (174 mi) SSW of Tarumizu (pop: 19,100) --> See nearby quakes!
284 km (176 mi) SSW of Kagoshima (pop: 555,400) --> See nearby quakes!
285 km (177 mi) SSW of Ijūin (Hioki) (pop: 25,200) --> See nearby quakes!
325 km (202 mi) NNE of Naga (pop: 59,600) --> See nearby quakes!
157 km (97 mi) SSW of Kuchinoerabu-jima Island (pop: 147) --> See nearby quakes!
Weather at epicenter at time of quake:
Scattered Clouds 16.3°C (61 F), humidity: 60%, wind: 10 m/s (20 kts) from NNE
Primary data source: NIED (National Research Institute for Earth Science and Disaster Resilience)
Estimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 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.
Mag.DepthLocationSource
4.09.7 kmJapan: NEAR AMAMI-OSHIMA ISLANDNIED

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.
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