Moderate mag. 3.9 earthquake - Ibaraki, 154 km northeast of Tokyo, Japan, on Tuesday, Jan 18, 2022 at 10:50 pm (GMT +9) -
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Moderate magnitude 3.9 earthquake at 9 km depth
18 Jan 13:56 UTC: First to report: NIED after 6 minutes.
Local time at epicenter: Tuesday, Jan 18, 2022 at 10:50 pm (GMT +9)
Magnitude: 3.9
Depth: 8.9 km
Epicenter latitude / longitude: 36.846°N / 140.634°E

Antipode: 36.846°S / 39.366°W
Nearest volcano: Nasu (67 km / 42 mi)
Nearby towns and cities:
58 km (36 mi) NNE of Mito (pop: 246,500) --> See nearby quakes!
154 km (96 mi) NNE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
-4.6°C (24 F), humidity: 58%, wind: 7 m/s (14 kts) from NW
Primary data source: NIED (National Research Institute for Earth Science and Disaster Resilience)
Clear Sky

Estimated released energy: 4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 tons of TNT) | about seismic energy
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. | Depth | Location | Source |
3.9 | 8.9 km | Japan: NORTHERN IBARAKI PREF | NIED |
3.9 | 10 km | NEAR EAST COAST OF HONSHU, JAPAN | EMSC |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Earlier earthquakes in the same area
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