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Light mag. 4.1 earthquake - North Pacific Ocean, 25 km southeast of Ofunato, Ōfunato-shi, Iwate, Japan, on Tuesday, Jan 19, 2021 at 5:47 am (GMT +9)

Light mag. 4.1 earthquake - North Pacific Ocean, 25 km southeast of Ofunato, Ōfunato-shi, Iwate, Japan, on Tuesday, Jan 19, 2021 at 5:47 am (GMT +9) Light mag. 4.1 earthquake - North Pacific Ocean, 25 km southeast of Ofunato, Ōfunato-shi, Iwate, Japan, on Tuesday, Jan 19, 2021 at 5:47 am (GMT +9)

Light magnitude 4.1 earthquake at 49 km depth

18 Jan 20:54 UTC: First to report: NIED after 7 minutes.
Update Mon, 18 Jan 2021, 21:00

Light 4.1 quake hits near Ōfunato, Ōfunato-shi, Iwate, Japan

4.1 quake 19 Jan 5:47 am (GMT +9)
4.1 quake 19 Jan 5:47 am (GMT +9)
Just 13 minutes ago, a 4.1-magnitude earthquake struck near Ōfunato, Ōfunato-shi, Iwate, Japan. The tremor was recorded early morning on Tuesday 19 January 2021 at 5:47 am local time, at a moderately shallow depth of 49.2 km below the surface.
The event was filed by NIED, the first seismological agency to report it.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.0.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Ōfunato (pop. 35,400) located 25 km from the epicenter, Kamaishi (pop. 43,100) 40 km away, Ōtsuchi (pop. 16,500) 50 km away, Tōno (pop. 26,800) 56 km away, Yamada (pop. 20,100) 61 km away, Ichinoseki (pop. 63,000) 69 km away, Mizusawa (pop. 61,300) 73 km away, and Ishinomaki (pop. 117,200) 78 km away.

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Earthquake details

Date & timeJan 18, 2021 20:47:32 UTC
Local time at epicenterTuesday, Jan 19, 2021 at 5:47 am (GMT +9)
Depth49.2 km
Epicenter latitude / longitude38.918°N / 141.927°E (North Pacific Ocean, Japan)
Antipode38.918°S / 38.073°W
Shaking intensityWeak shaking near epicenter
Felt0 reports
Primary data sourceNIED (National Research Institute for Earth Science and Disaster Resilience)
Nearest volcanoKurikoma (98 km / 61 mi)
Nearby towns and cities25 km (16 mi) SE of Ofunato (pop: 35,400) | Show on map | Quakes nearby
40 km (25 mi) S of Kamaishi (pop: 43,100) | Show on map | Quakes nearby
50 km (31 mi) S of Ōtsuchi (Kamihei-gun) (pop: 16,500) | Show on map | Quakes nearby
56 km (35 mi) SE of Tōno (pop: 26,800) | Show on map | Quakes nearby
61 km (38 mi) S of Yamada (Shimohei-gun) (pop: 20,100) | Show on map | Quakes nearby
69 km (43 mi) E of Ichinoseki (pop: 63,000) | Show on map | Quakes nearby
78 km (48 mi) NE of Ishinomaki (pop: 117,200) | Show on map | Quakes nearby
81 km (50 mi) ESE of Kitakami (pop: 93,900) | Show on map | Quakes nearby
117 km (73 mi) NE of Sendai (pop: 1,063,100) | Show on map | Quakes nearby
410 km (255 mi) NNE of Tokyo (pop: 8,336,600) | Show on map | Quakes nearby
82 km (51 mi) NNE of Tashiro Jima Island (pop: 100) | Show on map | Quakes nearby
Weather at epicenter at time of quakeLight Snow 1.8°C (35 F), humidity: 83%, wind: 16 m/s (31 kts) from W
Estimated seismic energy released8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) | about seismic energy
Show interactive Map
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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.
4.760 km29 Km ESE of Ōfunato, JapanUSGS


Seismic station: Erimo, Hokkaido Island, Japan (ERM/II network) | Distance from quake: 360 km / 224 mi | Show on map | Station Info
Seismic station Erimo, Hokkaido Island, Japan: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
Show more

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.

Earlier earthquakes in the same area

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