Light mag. 4.0 earthquake - North Pacific Ocean, 44 km east of Namie, Futaba-gun, Fukushima, Japan, on Sunday, 14 Feb 2021 12:36 am (GMT +9) -
This quake was likely an aftershock of the 7.1 quake North Pacific Ocean, 88 km southeast of Sendai, Miyagi, Japan, 13 Feb 2021 11:07 pm (GMT +9), which had occurred 1 hour and 29 minutes earlier.
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Light magnitude 4.0 earthquake at 47 km depth
13 Feb 15:43 UTC: First to report: NIED after 6 minutes.
Date & time: 13 Feb 2021 15:36:48 UTC -
Local time at epicenter: Sunday, 14 Feb 2021 12:36 am (GMT +9)
Magnitude: 4
Depth: 46.6 km
Epicenter latitude / longitude: 37.559°N / 141.487°E
(North Pacific Ocean, Japan)Nearest volcano: Adatara (106 km / 66 mi)
Nearby towns and cities:
44 km (27 mi) ENE of Namie (Futaba-gun) (pop: 21,900) --> See nearby quakes!
78 km (48 mi) NE of Iwaki (pop: 357,300) --> See nearby quakes!
82 km (51 mi) SE of Iwanuma (pop: 42,400) --> See nearby quakes!
92 km (57 mi) ESE of Fukushima (pop: 294,200) --> See nearby quakes!
93 km (58 mi) SSE of Shiogama (pop: 59,500) --> See nearby quakes!
96 km (59 mi) SE of Sendai (pop: 1,063,100) --> See nearby quakes!
97 km (60 mi) S of Ishinomaki (pop: 117,200) --> See nearby quakes!
99 km (62 mi) E of Kōriyama (pop: 340,600) --> See nearby quakes!
246 km (153 mi) NE of Saitama (pop: 1,193,400) --> See nearby quakes!
263 km (163 mi) NE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
10°C (50 F), humidity: 63%, wind: 6 m/s (12 kts) from SW
Primary data source: NIED (National Research Institute for Earth Science and Disaster Resilience)Clear Sky
10°C (50 F), humidity: 63%, wind: 6 m/s (12 kts) from SWEstimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) More info
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.
| Magnitude | Depth | Location | Source |
| 4.0 | 47 km | E OFF FUKUSHIMA PREF, Japan | NIED |
| 4.1 | 50 km | NEAR EAST COAST OF HONSHU, JAPAN | EMSC |
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