Shallow M6.0 Earthquake struck on Sunday Morning in the North Pacific Ocean near Nemuro (Japan).

Written by Earthquakelist.org on June 21st, 2025. Last updated July 19th, 2025.

In the early morning of Sunday June 22nd, 2025, a shallow and strong MAG-6.0 earthquake hit in the North Pacific Ocean 82 kilometer from Nemuro, Japan. Around 380 thousand people have been exposed to shaking.

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Earthquake Summary

This earthquake hit under water in the North Pacific Ocean, 84 kilometers (52 mi) off the coast of Japan, 82 kilometer south-east of Nemuro in Hokkaido. The center of this earthquake had a very shallow depth of 18 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time:	Jun 22, 2025 06:23 (Tokyo Time) - Jun 21, 2025 21:23 Universal Time.
Location:	82 km SE of Nemuro, Hokkaido, Japan. Coordinates 42°53'42"N 146°24'13"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 6.0 Detected by 32 stations. Maximum Error Range ±0.055 .
Depth:	18 km (11 mi) A very shallow depth.
Max. Intensity:	V Moderate On the Modified Mercalli Scale.
Tsunami Risk:	Low tsunami risk Earthquakes under MAG-6.5 do not usually cause tsunami's. Always stay cautious - More info here.

Minimal impact predicted

Based on scientific estimates by the US Geographic Survey (USGS), the risk of high fatalities for this earthquake is classified at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 fatalities, and a 96% chance that the number of fatalities falls no higher than 10.

The USGS classifies the economic impact of this earthquake at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 million US Dollars in economic damage and impact, and a 96% chance that the economic impact of this earthquake falls no higher than 10 million USD.

Roughly 380 thousand people exposed to shaking

This earthquake may have been felt by around 380 thousand people. That is the expected population size of the area exposed to a level of shaking of II or higher on the Modified Mercalli scale according to the USGS.

Light shaking and likely no damage may have been experienced by an estimated 261,500 people. At IV, it is the highest MMI level this earthquake has caused.

People in 2 countries have been exposed to shaking. In Japan , around 370 thousand people, with impact levels up to IV (light shaking, likely no damage). In Russia, shaking was experienced too.

Nearby towns and cities

This earthquake may have been felt in Japan . Nemuro in Hokkaido, Japan is the nearest significant place from the epicenter. The earthquake occurred 82 kilometer (51 mi) south-east of Nemuro. The intensity of shaking and damage in Nemuro is estimated to be around level IV on the Modified Mercalli Intensity scale (light shaking, likely no damage).

Major cities near this earthquake: Kushiro is located 165 km to the west and experienced an intensity of IV (light shaking, likely no damage). Asahikawa is located 341 km to the west-northwest (intensity unknown, possibly low). Obihiro is located 261 km to the west (intensity unknown, possibly low).

An overview of nearby towns and cities is available in the overview below. If places don't have intensity data available, it likely means the experienced impact in those places was fairly small.

Overview of nearby places

Earthquake Intensity Map

The maximum intensity (MMI Scale) caused by this earthquake is IV. The map below shows in which areas this earthquake was the most and least impactful. It is based on data from the US Geographic Survey.

I Not felt

II Weak

III Weak

IV Light

V Moderate

VI Strong

VII Very Strong

VIII Severe

IX Violent

X Extreme

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.

11 Aftershocks detected

After this earthquake struck, 11 smaller aftershocks occurred. At a distance of 14 km (9 mi) east of this earthquake, an aftershock struck 2 mins later. It measured a magnitude of 5.3

This main shock was prefaced by 7 smaller foreshocks. Roughly 3 days before this earthquake, a foreshock measuring MAG-5.9 was detected nearby this earthquake.

Overview of foreshocks and aftershocks

More earthquakes coming?

Aftershocks are usually at least 1 order of magnitude less strong than main shocks. The more time passes, the smaller the chance and likely strength of any potential aftershocks.

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

Earthquakes like this are common in the region

Earthquakes of this strength occur quite regularly in the region. This is the strongest earthquake to hit since May 31st, 2025, when a 6 magnitude earthquake hit 171 km (107 mi) further west-southwest. An even stronger magnitude 6.5 earthquake struck on December 28th, 2023.

In total, 4 earthquakes with a magnitude of 6 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 3 years.

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

Sources

Last updated 19/07/25 00:38 (). As more information on this earthquake becomes available this article will be updated. This article is automatically composed based on data originating from multiple sources.

1. US Geographic Society (USGS): Earthquake us6000qlnz
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20250621_0000209
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

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