On Wednesday Evening an Unusually powerful M5.7 Earthquake struck in the Sea of Japan 100km from Kavalerovo (Russia).

Written by Earthquakelist.org on June 10th, 2026. Last updated July 8th, 2026.

An unusually powerful M5.7 earthquake struck in the Sea of Japan 100 kilometer from Kavalerovo, Russia in the evening of Wednesday June 10th, 2026. Shaking may have been felt by a total of 150 thousand people.

Earthquake Summary

This earthquake hit under water in the Sea of Japan, 48 kilometers (30 mi) off the coast of Russia, 100 kilometer south-east of Kavalerovo in Primorskiy (Maritime) Kray. The center of this earthquake had a deep depth of 342 km.

Date and Time:	Jun 10, 2026 20:34 (Vladivostok Time) - Jun 10, 2026 10:34 Universal Time.
Location:	100 km SE of Kavalerovo, Primorskiy (Maritime) Kray, Russia. Coordinates 43°34'55"N 135°50'37"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.7 Detected by 48 stations. Maximum Error Range ±0.045 .
Depth:	342 km (213 mi) A deep depth.
Max. Intensity:	III Weak On the Modified Mercalli Scale.
Tsunami Risk:	Tsunami very unlikely Earthquakes under MAG-6.5 at depths deeper than 100km are very unlikely to 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 90% likelyhood of between 0 and 1 fatalities.

The USGS classifies the economic impact of this earthquake at level GREEN (low). They expect an 90% likelyhood of between 0 and 1 million US Dollars in economic damage and impact.

Roughly 150 thousand people exposed to shaking

An estimated 150 thousand have been exposed to shaking (An MMI or Modified Mercalli Intensity level II or higher) as a result of this earthquake according scientific estimates published by the USGS.

The highest earthquake impact level for this earthquake is II, which corresponds with very weak shaking and no damage. Roughly 150,000 people are expected to be exposed to this level. All exposure to shaking was within the borders of Russia .

People	MMI Level	Shaking	Damage
0	I	Not noticable	None
150,000	II	Very weak	None
0	III	Weak	Probably none
0	IV	Light	Likely none
0	V	Moderate	Very light
0	VI	Strong	Light
0	VII	Very Strong	Moderate
0	VIII	Severe	Moderate to heavy
0	IX	Violent	Heavy
0	X	Extreme	Very heavy

Nearby towns and cities

This earthquake may have been felt in Russia . Located 100 kilometer (62 mi) south-east of the epicenter of this earthquake, Kavalerovo (Primorskiy (Maritime) Kray, Russia) is the nearest significant population center. The intensity of shaking and damage in Kavalerovo is estimated to be around level II on the Modified Mercalli Intensity scale (very weak shaking, no damage).

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

Cities and Towns around the epicenter of this earthquake.
Distance	Place	Intensity (MMI)
100 km (62 mi) NW from epicenter	Kavalerovo Primorskiy (Maritime) Kray, Russia.	II Weak
110 km (68 mi) N from epicenter	Dalnegorsk Primorskiy (Maritime) Kray, Russia.	II Weak
215 km (134 mi) W from epicenter	Arsen’yev Primorskiy (Maritime) Kray, Russia.
226 km (140 mi) W from epicenter	Partizansk Primorskiy (Maritime) Kray, Russia.
243 km (151 mi) SW from epicenter	Vrangel’ Primorskiy (Maritime) Kray, Russia.
255 km (158 mi) W from epicenter	Nakhodka Primorskiy (Maritime) Kray, Russia.
266 km (165 mi) NW from epicenter	Spassk-Dal’niy Primorskiy (Maritime) Kray, Russia.
285 km (177 mi) NW from epicenter	Lesozavodsk Primorskiy (Maritime) Kray, Russia.
286 km (178 mi) W from epicenter	Fokino Primorskiy (Maritime) Kray, Russia.
287 km (178 mi) W from epicenter	Bol’shoy Kamen’ Primorskiy (Maritime) Kray, Russia.
296 km (184 mi) W from epicenter	Artëm Primorskiy (Maritime) Kray, Russia.

Earthquake Intensity Map

The maximum intensity (MMI Scale) caused by this earthquake is III. 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

Earthquake Intensity Map based on Shakemap Data provided by USGS.

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:

Hamamatsu, Shizuoka, Japan: 1 person.

Risk of aftershocks?

This earthquake did not have any significant foreshocks nor aftershocks occurring within 100km (62 mi) of its epicenter.

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

Read: How to Stay Safe during an Earthquake (cdc.gov).

This is the strongest earthquake in 3 years

Earthquakes of this strength are not so common in the region, but it's not the first time. This is the strongest earthquake to hit since June 27th, 2023, when a 5.8 magnitude earthquake hit 225 km (140 mi) further southwest. That was also the heaviest earthquake to hit the region in the past 10 years.

In total, 1 earthquake with a magnitude of 5.7 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 10 years.

Tsunami very unlikely

DISCLAIMER: We strongly suggest to closely monitor advice from local authorities with regards to tsunami risks. Our analysis is based on automatically collected data from external sources, and these might contain mistakes. In addition, earthquakes can cause landslides that may lead to a tsunami, or be a followed by another, potentially stonger, earthquake.

For a serious tsunami to occur, earthquakes usually need to have a magnitude of at least 6.5 and occur at a shallow depth of maximum 100km. Neither are the case with this earthquake. However always 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 5.7. Earthquakes of this strength are unlikely to trigger a tsunami.	Not this earthquake. This earthquake occurred at a depth of 342 km (213 mi). Earthquakes this deep in the earth are unlikely to trigger a tsunami.

Sources

Last updated 08/07/26 14:08 (). This article contains currently available information about the earthquake and is automatically composed. We continue to update this article up to a few days after the earthquake occurred.