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Sendai, Miyagi (70.4 km W of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s (reported through our app)
Light mag. 4.3 earthquake - North Pacific Ocean, 31 km east of Ishinomaki, Honshu-miyagi-ken, Japan, on Saturday, Dec 11, 2021 at 8:53 pm (GMT +9) -
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Light magnitude 4.3 earthquake at 53 km depth
11 Dec 12:00 UTC: First to report: NIED after 6 minutes.
Update Sat, 11 Dec 2021, 12:06
Magnitude 4.3 earthquake strikes near Ishinomaki, Ishinomaki Shi, Honshu-miyagi-ken, Japan4.3 quake 11 Dec 8:53 pm (GMT +9)
A moderately shallow magnitude 4.3 earthquake was reported in the evening near Ishinomaki, Ishinomaki Shi, Honshu-miyagi-ken, Japan.
According to Japan's National Research Institute for Earth Science and Disaster Resilience (NIED), the quake hit on Saturday, December 11th, 2021, at 8:53 pm local time at a moderately shallow depth of 53.2 km. 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 Ishinomaki (pop. 117,200) located 31 km from the epicenter, Yamoto (pop. 32,000) 38 km away, Wakuya (pop. 18,300) 50 km away, Matsushima (pop. 16,400) 50 km away, Shiogama (pop. 59,500) 53 km away, Rifu (pop. 35,000) 57 km away, Furukawa (pop. 76,300) 65 km away, Tomiya (pop. 42,500) 66 km away, and Sendai (pop. 1,063,100) 67 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
According to Japan's National Research Institute for Earth Science and Disaster Resilience (NIED), the quake hit on Saturday, December 11th, 2021, at 8:53 pm local time at a moderately shallow depth of 53.2 km. 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 Ishinomaki (pop. 117,200) located 31 km from the epicenter, Yamoto (pop. 32,000) 38 km away, Wakuya (pop. 18,300) 50 km away, Matsushima (pop. 16,400) 50 km away, Shiogama (pop. 59,500) 53 km away, Rifu (pop. 35,000) 57 km away, Furukawa (pop. 76,300) 65 km away, Tomiya (pop. 42,500) 66 km away, and Sendai (pop. 1,063,100) 67 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
Earthquake data
Earthquake details
| Date & time | Dec 11, 2021 11:53:49 UTC - |
| Local time at epicenter | Saturday, Dec 11, 2021 at 8:53 pm (GMT +9) |
| Status | Confirmed |
| Magnitude | 4.3 |
| Depth | 53.2 km |
| Epicenter latitude / longitude | 38.329°N / 141.635°E  (North Pacific Ocean, Japan) |
| Antipode | 38.329°S / 38.365°W |
| Shaking intensity | Very weak shaking |
| Felt | 1 report |
| Primary data source | NIED (National Research Institute for Earth Science and Disaster Resilience) |
| Nearest volcano | Narugo (91 km / 57 mi) |
| Nearby towns and cities | 31 km (19 mi) ESE of Ishinomaki (pop: 117,200) | Show on map | Quakes nearby 38 km (24 mi) ESE of Yamoto (Higashimatsushima) (pop: 32,000) | Show on map | Quakes nearby 50 km (31 mi) ESE of Wakuya (Tōda Gun) (pop: 18,300) | Show on map | Quakes nearby 50 km (31 mi) E of Matsushima (pop: 16,400) | Show on map | Quakes nearby 53 km (33 mi) E of Schiogama (pop: 59,500) | Show on map | Quakes nearby 57 km (36 mi) E of Rifu (pop: 35,000) | Show on map | Quakes nearby 65 km (40 mi) ESE of Furukawa (pop: 76,300) | Show on map | Quakes nearby 66 km (41 mi) E of Tomiya (pop: 42,500) | Show on map | Quakes nearby 67 km (42 mi) E of Sendai (pop: 1,063,100) | Show on map | Quakes nearby 341 km (212 mi) NNE of Tokyo (pop: 8,336,600) | Show on map | Quakes nearby 19 km (12 mi) E of Tashiro Jima Island (pop: 100) | Show on map | Quakes nearby |
| Weather at epicenter at time of quake | Few Clouds  11.1°C (52 F), humidity: 73%, wind: 8 m/s (15 kts) from WNW |
| Estimated seismic energy released | 1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 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 |
| 4.3 | 53 km | Japan: KINKAZAN REGION | NIED |
User reports for this quake (1)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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