Light mag. 4.0 earthquake - North Pacific Ocean, 72 km northeast of Miyako, Iwate, Japan, on Monday, Jan 25, 2021 at 11:09 pm (GMT +9) -
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Light magnitude 4.0 earthquake at 30 km depth
25 Jan 14:17 UTC: First to report: NIED after 8 minutes.
Update Mon, 25 Jan 2021, 14:21
Magnitude 4.0 earthquake strikes near Miyako, Miyako-shi, Iwate, Japan4.0 quake 25 Jan 11:09 pm (GMT +9)
An earthquake of magnitude 4.0 occurred only 12 minutes ago 72 km northeast of Miyako, Japan, NIED reported.
The quake hit at a moderately shallow depth of 30.3 km beneath the epicenter near Miyako, Miyako-shi, Iwate, Japan, late at night on Monday 25 January 2021 at 11:09 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 Miyako (pop. 51,700) located 72 km from the epicenter, Hachinohe (pop. 239,000) 87 km away, Yamada (pop. 20,100) 89 km away, and Ichinohe (pop. 15,800) 97 km away.
The quake hit at a moderately shallow depth of 30.3 km beneath the epicenter near Miyako, Miyako-shi, Iwate, Japan, late at night on Monday 25 January 2021 at 11:09 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 Miyako (pop. 51,700) located 72 km from the epicenter, Hachinohe (pop. 239,000) 87 km away, Yamada (pop. 20,100) 89 km away, and Ichinohe (pop. 15,800) 97 km away.
Earthquake data
Earthquake details
| Date & time | Jan 25, 2021 14:09:04 UTC - |
| Local time at epicenter | Monday, Jan 25, 2021 at 11:09 pm (GMT +9) |
| Status | Confirmed |
| Magnitude | 4 |
| Depth | 30.3 km |
| Epicenter latitude / longitude | 40.177°N / 142.432°E  (North Pacific Ocean, Japan) |
| Antipode | 40.177°S / 37.568°W |
| Shaking intensity | Weak shaking near epicenter |
| Felt | 0 reports |
| Primary data source | NIED (National Research Institute for Earth Science and Disaster Resilience) |
| Nearest volcano | Osore-yama (112 km / 70 mi) |
| Nearby towns and cities | 72 km (45 mi) NE of Miyako (pop: 51,700) | Show on map | Quakes nearby 87 km (54 mi) ESE of Hachinohe (pop: 239,000) | Show on map | Quakes nearby 89 km (55 mi) NNE of Yamada (Shimohei-gun) (pop: 20,100) | Show on map | Quakes nearby 97 km (60 mi) E of Ichinohe (pop: 15,800) | Show on map | Quakes nearby 105 km (65 mi) ESE of Misawa (pop: 42,800) | Show on map | Quakes nearby 111 km (69 mi) NNE of Kamaishi (pop: 43,100) | Show on map | Quakes nearby 122 km (76 mi) ENE of Morioka (pop: 295,200) | Show on map | Quakes nearby 160 km (100 mi) ESE of Aomori (pop: 298,400) | Show on map | Quakes nearby 252 km (156 mi) NNE of Sendai (pop: 1,063,100) | Show on map | Quakes nearby 554 km (344 mi) NNE of Tokyo (pop: 8,336,600) | Show on map | Quakes nearby |
| Weather at epicenter at time of quake | Broken Clouds  5.7°C (42 F), humidity: 72%, wind: 6 m/s (11 kts) from N |
| Estimated seismic energy released | 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 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 |
| 4.0 | 30 km | NE OFF IWATE PREF, Japan | NIED |
| 4.5 | 54 km | NEAR EAST COAST OF HONSHU, JAPAN | EMSC |
| 4.5 | 54 km | 57 Km ESE of Hachinohe, Japan | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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