Light mag. 4.1 earthquake - North Pacific Ocean, 30 km east of Hitachi, Ibaraki, Japan, on Thursday, 4 Feb 2021 12:40 pm (GMT +9) -

Light mag. 4.1 earthquake - North Pacific Ocean, 30 km east of Hitachi, Ibaraki, Japan, on Thursday, 4 Feb 2021 12:40 pm (GMT +9)

Light magnitude 4.1 earthquake at 44 km depth

4 Feb 03:46 UTC: First to report: NIED after 6 minutes.
Update Thu, 4 Feb 2021, 03:51
Moderate magnitude 4.1 quake hits 30 km east of Hitachi, Japan around noon
4.1 quake 4 Feb 12:40 pm (GMT +9)
4.1 quake 4 Feb 12:40 pm (GMT +9)
An earthquake of magnitude 4.1 occurred only 11 minutes ago 30 km east of Hitachi, Japan, NIED reported.
The quake hit at a moderately shallow depth of 44.2 km beneath the epicenter near Hitachi, Hitachi-shi, Ibaraki, Japan, around noon on Thursday 4 February 2021 at 12:40 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.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Takahagi (pop. 33,600) located 27 km from the epicenter, Kitaibaraki (pop. 50,800) 29 km away, Hitachi (pop. 186,300) 30 km away, Funaishikawa (pop. 35,300) 41 km away, Katsuta (pop. 156,000) 48 km away, Ōmiya (pop. 27,600) 52 km away, Mito (pop. 246,500) 56 km away, and Okunoya (pop. 34,600) 63 km away.
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Earthquake data:

Date & time: 4 Feb 2021 03:40:10 UTC -
Local time at epicenter: Thursday, 4 Feb 2021 12:40 pm (GMT +9)
Magnitude: 4.1
Depth: 44.2 km
Epicenter latitude / longitude: 36.611°N / 140.99°E (North Pacific Ocean, Japan)
Nearest volcano: Nasu (107 km / 66 mi)
Nearby towns and cities:
27 km (17 mi) ESE of Takahagi (pop: 33,600) --> See nearby quakes!
29 km (18 mi) SE of Kitaibaraki (pop: 50,800) --> See nearby quakes!
30 km (19 mi) E of Hitachi (pop: 186,300) --> See nearby quakes!
41 km (26 mi) ENE of Funaishikawa (Naka-gun) (pop: 35,300) --> See nearby quakes!
47 km (29 mi) ENE of Hitachi-Naka (pop: 156,800) --> See nearby quakes!
48 km (30 mi) ENE of Katsuta (pop: 156,000) --> See nearby quakes!
49 km (31 mi) NE of Ōarai (Higashiibaraki-gun) (pop: 19,300) --> See nearby quakes!
50 km (31 mi) SSE of Iwaki (pop: 357,300) --> See nearby quakes!
155 km (96 mi) NE of Tokyo (pop: 8,336,600) --> See nearby quakes!
178 km (111 mi) NE of Yokohama (pop: 3,574,400) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 10.6°C (51 F), humidity: 27%, wind: 2 m/s (4 kts) from W
Primary data source: NIED (National Research Institute for Earth Science and Disaster Resilience)
Estimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) More info
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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.
MagnitudeDepthLocationSource
4.144 kmE OFF IBARAKI PREF, JapanNIED
4.560 kmNEAR EAST COAST OF HONSHU, JAPANEMSC
4.557 km17 Km WSW of Iwaki, JapanUSGS

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 yet. If you felt it be the first to report it!
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Earlier earthquakes in the same area since 1900


Map of earlier quakes

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