Light mag. 4.2 earthquake - North Pacific Ocean, 26 km east of Iwaki, Fukushima, Japan, on Tuesday, Dec 29, 2020 1:15 am (GMT +9) -

Light mag. 4.2 earthquake - North Pacific Ocean, 26 km east of Iwaki, Fukushima, Japan, on Tuesday, Dec 29, 2020 1:15 am (GMT +9)

Light magnitude 4.2 earthquake at 52 km depth

28 Dec 16:23 UTC: First to report: NIED after 8 minutes.
Update Mon, 28 Dec 2020, 16:27
Light tremor of magnitude 4.2 just reported 26 km east of Iwaki, Japan
4.2 quake 29 Dec 1:15 am (GMT +9)
4.2 quake 29 Dec 1:15 am (GMT +9)
An earthquake of magnitude 4.2 occurred only 12 minutes ago 26 km east of Iwaki, Japan, NIED reported.
The quake hit at a moderately shallow depth of 51.5 km beneath the epicenter near Iwaki, Iwaki-shi, Fukushima, Japan, early morning on Tuesday 29 December 2020 at 1:15 am 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.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.0.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Iwaki (pop. 357,300) located 26 km from the epicenter, Namie (pop. 21,900) 48 km away, Kitaibaraki (pop. 50,800) 50 km away, Takahagi (pop. 33,600) 58 km away, Funehikimachi-funehiki (pop. 23,500) 67 km away, Hitachi (pop. 186,300) 71 km away, Sukagawa (pop. 68,800) 74 km away, and Kōriyama (pop. 340,600) 79 km away.

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Earthquake data

Date & time: Dec 28, 2020 16:15:23 UTC -
Local time at epicenter: Tuesday, Dec 29, 2020 1:15 am (GMT +9)
Magnitude: 4.2
Depth: 51.5 km
Epicenter latitude / longitude: 37.08°N / 141.177°E (North Pacific Ocean, Japan)
Antipode: 37.08°S / 38.823°W
Nearest volcano: Adatara (101 km / 63 mi)
Nearby towns and cities:
26 km (16 mi) E of Iwaki (pop: 357,300) --> See nearby quakes!
48 km (30 mi) SSE of Namie (Futaba-gun) (pop: 21,900) --> See nearby quakes!
50 km (31 mi) NE of Kitaibaraki (pop: 50,800) --> See nearby quakes!
58 km (36 mi) NE of Takahagi (pop: 33,600) --> See nearby quakes!
65 km (40 mi) E of Ishikawa (pop: 18,800) --> See nearby quakes!
67 km (42 mi) SE of Funehikimachi-funehiki (Tamura) (pop: 23,500) --> See nearby quakes!
71 km (44 mi) NE of Hitachi (pop: 186,300) --> See nearby quakes!
97 km (61 mi) SE of Fukushima (pop: 294,200) --> See nearby quakes!
188 km (117 mi) NE of Saitama (pop: 1,193,400) --> See nearby quakes!
204 km (127 mi) NE of Tokyo (pop: 8,336,600) --> See nearby quakes!
137 km (85 mi) S of Tashiro Jima Island (pop: 100) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 9.4°C (49 F), humidity: 65%, wind: 3 m/s (5 kts) from WNW
Primary data source: NIED (National Research Institute for Earth Science and Disaster Resilience)
Estimated released energy: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 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.
4.454 km32 Km ENE of Iwaki, JapanUSGS
4.456 kmNear East Coast of Honshu, JapanGFZ

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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