Weak mag. 3.1 earthquake - North Pacific Ocean, 76 km east of Ishinomaki, Miyagi, Japan, on Thursday, 11 Feb 2021 2:07 am (GMT +9) -
This quake was likely a foreshock of the 7.1 quake North Pacific Ocean, 88 km southeast of Sendai, Miyagi, Japan, 13 Feb 2021 11:07 pm (GMT +9), which followed after 3 days.
Quake Data | Interactive map | User Reports | Earlier quakes in same area | Quakes in Japan| Iwate | Miyagi | Tokyo
Weak magnitude 3.1 earthquake at 40 km depth
10 Feb 17:14 UTC: First to report: NIED after 7 minutes.
Date & time: 10 Feb 2021 17:07:30 UTC -
Local time at epicenter: Thursday, 11 Feb 2021 2:07 am (GMT +9)
Magnitude: 3.1
Depth: 40.1 km
Epicenter latitude / longitude: 38.656°N / 142.114°E
(North Pacific Ocean, Japan)Nearest volcano: Kurikoma (119 km / 74 mi)
Nearby towns and cities:
58 km (36 mi) SE of Ōfunato (pop: 35,400) --> See nearby quakes!
72 km (45 mi) SSE of Kamaishi (pop: 43,100) --> See nearby quakes!
76 km (47 mi) ENE of Ishinomaki (pop: 117,200) --> See nearby quakes!
81 km (50 mi) SSE of Ōtsuchi (Kamihei-gun) (pop: 16,500) --> See nearby quakes!
82 km (51 mi) ENE of Yamoto (Higashimatsushima) (pop: 32,000) --> See nearby quakes!
86 km (53 mi) E of Wakuya (Tōda Gun) (pop: 18,300) --> See nearby quakes!
89 km (55 mi) SE of Tōno (pop: 26,800) --> See nearby quakes!
90 km (56 mi) ESE of Ichinoseki (pop: 63,000) --> See nearby quakes!
117 km (73 mi) ENE of Sendai (pop: 1,063,100) --> See nearby quakes!
394 km (245 mi) NNE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds
5°C (41 F), humidity: 70%, wind: 6 m/s (12 kts) from W
Primary data source: NIED (National Research Institute for Earth Science and Disaster Resilience)Overcast Clouds
5°C (41 F), humidity: 70%, wind: 6 m/s (12 kts) from WEstimated released energy: 2.8 x 109 joules (783 kilowatt hours, equivalent to 0.674 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 |
| 3.1 | 40 km | E OFF MIYAGI PREF, Japan | NIED |
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