A significant MAG-5.2 foreshock struck in the North Pacific Ocean 82 kilometer from Kushiro, Japan in the evening of Wednesday October 22nd, 2025.
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Earthquake Summary
This earthquake hit under water in the North Pacific Ocean, 21 kilometers (13 mi) off the coast of Japan, 82 kilometer east of Kushiro in Hokkaido. The center of this earthquake had a quite shallow depth of 59 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.
| Date and Time: | Oct 22, 2025 18:17 (Tokyo Time) - Oct 22, 2025 09:17 Universal Time. |
|---|---|
| Location: | 82 km east of Kushiro, Hokkaido, Japan. Coordinates 42°58'48"N 145°22'51"E. |
| Map: |  Map of area around epicenter. Click to open in Google Maps. |
| Magnitude: | MAG 5.2 Detected by 122 stations. Maximum Error Range ±0.052 . |
| Depth: | 59 km (37 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 . Located 41 kilometer (25 mi) south-southwest of the epicenter of this earthquake, Nemuro (Hokkaido, Japan) is the nearest significant population center.
Multiple major population centers exist within 300km of the earthquake that struck today. Kushiro is located 82 km to the west. Asahikawa is located 259 km to the west-northwest. Obihiro is located 177 km to the west.
The table below provides an overview of all places in proximity of today's earthquake.
Overview of nearby places
| Distance | Place |
|---|---|
| 41 km (25 mi) NNE from epicenter |
Nemuro Hokkaido, Japan. |
| 71 km (44 mi) NNW from epicenter |
Nakashibetsu Hokkaido, Japan. |
| 78 km (48 mi) NNW from epicenter |
Shibetsu Hokkaido, Japan. |
| 82 km (51 mi) W from epicenter |
Kushiro Hokkaido, Japan. |
| 140 km (87 mi) NW from epicenter |
Motomachi Hokkaido, Japan. |
| 146 km (91 mi) NW from epicenter |
Abashiri Hokkaido, Japan. |
| 151 km (94 mi) NW from epicenter |
Kitami Hokkaido, Japan. |
| 177 km (110 mi) W from epicenter |
Otofuke Hokkaido, Japan. |
| 177 km (110 mi) W from epicenter |
Obihiro Hokkaido, Japan. |
| 223 km (139 mi) NW from epicenter |
Mombetsu Hokkaido, Japan. |
| 247 km (153 mi) W from epicenter |
Shimo-furano Hokkaido, Japan. |
| 257 km (160 mi) WSW from epicenter |
Shizunai-furukawachō Hokkaido, Japan. |
| 259 km (161 mi) WNW from epicenter |
Asahikawa Hokkaido, Japan. |
| 265 km (165 mi) WNW from epicenter |
Ashibetsu Hokkaido, Japan. |
| 275 km (171 mi) WNW from epicenter |
Minamishibetsuchō Hokkaido, Japan. |
| 280 km (174 mi) WNW from epicenter |
Nayoro Hokkaido, Japan. |
| 282 km (175 mi) WNW from epicenter |
Fukagawa Hokkaido, Japan. |
| 287 km (178 mi) W from epicenter |
Sunagawa Hokkaido, Japan. |
| 288 km (179 mi) W from epicenter |
Bibai Hokkaido, Japan. |
| 288 km (179 mi) WNW from epicenter |
Takikawa Hokkaido, Japan. |
| 295 km (183 mi) W from epicenter |
Iwamizawa Hokkaido, Japan. |
Shaking reported by 1 person
People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 1 person has 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:
- Bihoro, Hokkaido, Japan: 1 person.
This is likely a foreshock
This earthquake was followed by a stronger MAG-5.8 earthquake, classifying this earthquake as a foreshock.
Overview of foreshocks and aftershocks
| Classification | Magnitude | When | Where |
|---|---|---|---|
| Foreshock This Earthquake |
M 5.2 |
2 days earlier Oct 22, 2025 18:17 (Tokyo Time) | 21 km (13 mi) W from Main Shock. |
| Main Shock | M 5.8 |
Oct 25, 2025 01:40 (Tokyo Time) | - |
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.
The chance that a significant earthquake like this one is followed by an even larger earthquake is not so large. On average, scientists estimate a 94% chance that a major earthquake will not be followed by an even larger one. It is still adviced to be aware of this risk
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 August 12th, 2025, when a 5.4 magnitude earthquake hit 90 km (56 mi) further south-southwest. An even stronger magnitude 6.7 earthquake struck on January 14th, 2016.
In total, 58 earthquakes with a magnitude of 5.2 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 2 months.
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 5.2. Earthquakes of this strength are unlikely to trigger a tsunami. |
This earthquake occurred at a depth of of 59 km (37 mi). Earthquakes this shallow could trigger a tsunami. |
Sources
Last updated 08/11/25 11:18 (). 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 us6000rimi
- European-Mediterranean Seismological Centre (EMSC): Earthquake 20251022_0000117
- Geonames.org: World Cities Database
- Google Maps: Static API
- Earthquakelist.org: Historic Earthquakes Database
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