In the early morning of Friday October 24th, 2025, a significant Magnitude 5.1 earthquake hit in the North Pacific Ocean 139 kilometer from Sendai, Japan.
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Earthquake Summary
This earthquake hit under water in the North Pacific Ocean, 110 kilometers (68 mi) off the coast of Japan, 139 kilometer south-east of Sendai in Miyagi. The center of this earthquake had a quite shallow depth of 41 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.
| Date and Time: | Oct 24, 2025 06:09 (Tokyo Time) - Oct 23, 2025 21:09 Universal Time. |
|---|---|
| Location: | 139 km SE of Sendai, Miyagi, Japan. Coordinates 37°25'12"N 142°2'9"E. |
| Map: |  Map of area around epicenter. Click to open in Google Maps. |
| Magnitude: | MAG 5.1 Detected by 366 stations. Maximum Error Range ±0.03 . |
| Depth: | 41 km (25 mi) A quite shallow depth. |
| Tsunami Risk: | Low tsunami risk Earthquakes under MAG-6.5 do not usually cause tsunami's. Always stay cautious - More info here. |
Nearby towns and cities
This earthquake may have been felt in Japan . Namie in Fukushima, Japan is the nearest significant place from the epicenter. The earthquake occurred 92 kilometer (57 mi) east of Namie.
Multiple large cities are in proximity of today's earthquake. Tokyo is located 284 km to the southwest. Sendai is located 139 km to the northwest. Kawasaki is located 296 km to the southwest.
A complete list of nearby places is included below.
Overview of nearby places
| Distance | Place |
|---|---|
| 92 km (57 mi) W from epicenter |
Namie Fukushima, Japan. |
| 110 km (68 mi) WSW from epicenter |
Iwaki Fukushima, Japan. |
| 125 km (78 mi) WNW from epicenter |
Watari Miyagi, Japan. |
| 127 km (79 mi) WNW from epicenter |
Kakuda Miyagi, Japan. |
| 128 km (80 mi) NW from epicenter |
Iwanuma Miyagi, Japan. |
| 128 km (80 mi) NNW from epicenter |
Ishinomaki Miyagi, Japan. |
| 129 km (80 mi) W from epicenter |
Funehikimachi-funehiki Fukushima, Japan. |
| 133 km (83 mi) NW from epicenter |
Shiogama Miyagi, Japan. |
| 133 km (83 mi) NNW from epicenter |
Yamoto Miyagi, Japan. |
| 134 km (83 mi) WSW from epicenter |
Kitaibaraki Ibaraki, Japan. |
| 137 km (85 mi) NW from epicenter |
Rifu Miyagi, Japan. |
| 139 km (86 mi) NW from epicenter |
Sendai Miyagi, Japan. |
| 141 km (88 mi) WNW from epicenter |
Shiroishi Miyagi, Japan. |
| 141 km (88 mi) SW from epicenter |
Takahagi Ibaraki, Japan. |
| 143 km (89 mi) W from epicenter |
Nihommatsu Fukushima, Japan. |
| 143 km (89 mi) WNW from epicenter |
Fukushima Fukushima, Japan. |
| 146 km (91 mi) W from epicenter |
Kōriyama Fukushima, Japan. |
| 147 km (91 mi) W from epicenter |
Sukagawa Fukushima, Japan. |
| 148 km (92 mi) NW from epicenter |
Tomiya Miyagi, Japan. |
| 153 km (95 mi) SW from epicenter |
Hitachi Ibaraki, Japan. |
| 159 km (99 mi) NW from epicenter |
Furukawa Miyagi, Japan. |
| 172 km (107 mi) WNW from epicenter |
Yamagata Yamagata, Japan. |
| 175 km (109 mi) SW from epicenter |
Hitachi-Naka Ibaraki, Japan. |
| 176 km (109 mi) SW from epicenter |
Katsuta Ibaraki, Japan. |
| 177 km (110 mi) WNW from epicenter |
Yonezawa Yamagata, Japan. |
| 179 km (111 mi) NW from epicenter |
Tendō Yamagata, Japan. |
| 181 km (112 mi) WSW from epicenter |
Nasushiobara Tochigi, Japan. |
| 183 km (114 mi) NW from epicenter |
Higashine Yamagata, Japan. |
| 183 km (114 mi) WSW from epicenter |
Kuroiso Tochigi, Japan. |
| 184 km (114 mi) NNW from epicenter |
Ichinoseki Iwate, Japan. |
| 185 km (115 mi) SW from epicenter |
Mito Ibaraki, Japan. |
| 188 km (117 mi) WSW from epicenter |
Ōtawara Tochigi, Japan. |
| 213 km (132 mi) WSW from epicenter |
Utsunomiya Tochigi, Japan. |
| 219 km (136 mi) SW from epicenter |
Tsukuba Ibaraki, Japan. |
| 248 km (154 mi) NNW from epicenter |
Yokote Akita, Japan. |
| 252 km (157 mi) SW from epicenter |
Kashiwa Chiba, Japan. |
| 259 km (161 mi) SW from epicenter |
Kasukabe Saitama, Japan. |
| 263 km (163 mi) SW from epicenter |
Koshigaya Saitama, Japan. |
| 264 km (164 mi) SW from epicenter |
Matsudo Chiba, Japan. |
| 265 km (165 mi) SW from epicenter |
Chiba Chiba, Japan. |
| 265 km (165 mi) SW from epicenter |
Honchō Chiba, Japan. |
| 265 km (165 mi) NNW from epicenter |
Morioka Iwate, Japan. |
| 266 km (165 mi) SW from epicenter |
Sōka Saitama, Japan. |
| 271 km (168 mi) SW from epicenter |
Saitama Saitama, Japan. |
| 272 km (169 mi) W from epicenter |
Niigata Niigata, Japan. |
| 274 km (170 mi) SW from epicenter |
Ichihara Chiba, Japan. |
| 274 km (170 mi) SW from epicenter |
Kawaguchi Saitama, Japan. |
| 283 km (176 mi) SW from epicenter |
Kawagoe Saitama, Japan. |
| 284 km (176 mi) SW from epicenter |
Tokyo Tokyo, Japan. |
| 286 km (178 mi) WSW from epicenter |
Maebashi Gunma, Japan. |
| 291 km (181 mi) SW from epicenter |
Tokorozawa Saitama, Japan. |
| 296 km (184 mi) SW from epicenter |
Kawasaki Kanagawa, Japan. |
Shaking reported by 2 people
People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 2 people have reported shaking in one place in Japan.We keep updating this article as more ground reports become available. You may report that you felt this earthquake here.
Places with most reports:
- Sendai, Miyagi, Japan: 2 people.
Aftershocks detected
This main shock was followed by 1 smaller aftershock. Just 3 hrs after this main shock, an earthquake measuring MAG-3.9 was detected 92 km (57 mi) north-northwest of this earthquake.
This main shock was prefaced by 1 smaller foreshock. A 4.4 magnitude earthquake hit 2 days earlier nearby.
Overview of foreshocks and aftershocks
| Classification | Magnitude | When | Where |
|---|---|---|---|
| Foreshock | M 4.4 |
2 days earlier Oct 22, 2025 03:48 (Tokyo Time) | 31 km (19 mi) NNE from Main Shock. |
| Main Shock This Earthquake |
M 5.1 |
Oct 24, 2025 06:09 (Tokyo Time) | - |
| Aftershock | M 3.9 |
3 hrs later Oct 24, 2025 09:27 (Tokyo Time) | 92 km (57 mi) NNW from Main Shock. |
More earthquakes coming?
The risk of aftershocks decreases rapidly over time. Usually, aftershocks are at least one order of magnitude lower than a main shock.
It's always adviced to be cautious of the risk of a larger shock following any significant earthquake, however this risk is fairly small. There is a roughly 94 percent change that no larger main shock will follow in the days following this earthquake.
Read: How to Stay Safe during an Earthquake (cdc.gov).Earthquakes like this happen often in the region
Earthquakes of this strength are very common in the region. This is the strongest earthquake to hit since October 4th, 2025, when a 5.9 magnitude earthquake hit 43 km (27 mi) further west. An even stronger magnitude 7.3 earthquake struck on March 16th, 2022.
In total, 116 earthquakes with a magnitude of 5.1 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every month.
Low tsunami risk
Based on early data it appears this earthquake was not strong enough (lower than MAG-6.5) to be likely to cause destructive tsunami's. However this earthquake appeared to have hit at a shallow depth under sea, so stay cautious and monitor advice from local authorities.
Tsunami Risk Factors
| Factor | Under Sea? | MAG-6.5 or stronger? | Shallow depth? |
|---|---|---|---|
| Explanation | Almost all tsunami's are caused by earthquakes with their epicenter under sea or very near the sea. However stay cautious in coastal areas as earthquakes on land may cause landslides into sea, potentially still causing a local tsunami. | Under MAG 6.5: Very unlikely to cause a tsunami. MAG 6.5 to 7.5: Destructive tsunami's do occur, but are uncommon. Likely to observe small sea level changes. MAG 7.6+: Earthquakes with these magnitudes might produce destructive tsunami's. |
Most destructive tsunami's are caused by shallow earthquakes with a depth between 0 and 100km under the surface of the earth. Deeper tsunami's are unlikely to displace to ocean floor. |
| This Earthquake | This earthquake appears to have struck under the sea. | Not this earthquake. This earthquake had a magnitude of 5.1. Earthquakes of this strength are unlikely to trigger a tsunami. |
This earthquake occurred at a depth of of 41 km (25 mi). Earthquakes this shallow could trigger a tsunami. |
Sources
Last updated 08/11/25 22:48 (). This article is automatically generated based on available data. We keep checking multiple sources for additional information. This article gets updated as new details on this earthquake become available.
- US Geographic Society (USGS): Earthquake us6000rj0d
- European-Mediterranean Seismological Centre (EMSC): Earthquake 20251023_0000286
- Geonames.org: World Cities Database
- Google Maps: Static API
- Earthquakelist.org: Historic Earthquakes Database
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