On Tuesday Evening a Significant M5.7 Earthquake struck in the North Pacific Ocean 293km from Vilyuchinsk (Russia).

Written by Earthquakelist.org on October 28th, 2025. Last updated November 9th, 2025.

In the North Pacific Ocean 293 kilometer from Vilyuchinsk, Russia, a significant M5.7 earthquake occurred in the evening of Tuesday October 28th, 2025. Roughly 5 thousand people may have felt this earthquake.

Earthquake Summary

This earthquake hit under water in the North Pacific Ocean, 91 kilometers (57 mi) off the coast of Russia, 293 kilometer south-southwest of Vilyuchinsk in Kamchatka. The center of this earthquake had a quite shallow depth of 46 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time:	Oct 28, 2025 19:06 (Kamchatka Time) - Oct 28, 2025 07:06 Universal Time.
Location:	293 km SSW of Vilyuchinsk, Kamchatka, Russia. Coordinates 50°22'31"N 157°23'35"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.7 Detected by 21 stations. Maximum Error Range ±0.068 .
Depth:	46 km (28 mi) A quite 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 5 thousand people exposed to shaking

An estimated 5 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.

Light shaking and likely no damage may have been experienced by an estimated 730 people. At IV, it is the highest MMI level this earthquake has caused. Intensity level III was experienced by the majority of people (around 5 thousand). In their region, weak shaking and probably no damage can be expected. All exposure to shaking was within the borders of Russia .

People	MMI Level	Shaking	Damage
0	I	Not noticable	None
10	II	Very weak	None
4,590	III	Weak	Probably none
730	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 . The closest significant population center near the earthquake is Vilyuchinsk in Kamchatka, Russia. Vilyuchinsk is located 293 kilometer (182 mi) south-southwest of the epicenter.

Overview of nearby places

Cities and Towns around the epicenter of this earthquake.
Distance	Place
293 km (182 mi) NNE from epicenter	Vilyuchinsk Kamchatka, Russia.

Earthquake Intensity Map

The intensity in shaking and damage by this earthquake is illustrated through the map below. The highest intensity measured for this earthquake is IV.

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.

2 Aftershocks detected

Since this main shock, 2 smaller aftershocks were detected. A 4.5 magnitude earthquake hit 8 mins later 24 km (15 mi) south-east of this earthquake.

Before this earthquake struck, 3 smaller foreshocks occurred. Roughly 1 day before this earthquake, a foreshock measuring MAG-4.4 was detected nearby this earthquake.

Overview of foreshocks and aftershocks

Detected MAG2.5+ earthquakes within within 100km (62 mi), that occurred in the three days before and after the main shock.
Classification	Magnitude	When	Where
Foreshock	M 4.4	2 days earlier Oct 26, 2025 09:00 (Kamchatka Time)	22 km (14 mi) NW from Main Shock.
Foreshock	M 4.4	1 day earlier Oct 27, 2025 15:31 (Kamchatka Time)	29 km (18 mi) S from Main Shock.
Foreshock	M 4.4	1 day earlier Oct 27, 2025 15:31 (Kamchatka Time)	34 km (21 mi) W from Main Shock.
Main Shock This Earthquake	M 5.7	Oct 28, 2025 19:06 (Kamchatka Time)	-
Aftershock	M 4.5	8 mins later Oct 28, 2025 19:14 (Kamchatka Time)	24 km (15 mi) SE from Main Shock.
Aftershock	M 3.9	13 hrs later Oct 29, 2025 08:11 (Kamchatka Time)	81 km (50 mi) W from Main Shock.

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.

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 11th, 2025, when a 5.8 magnitude earthquake hit 51 km (31 mi) further west-southwest. An even stronger magnitude 7.5 earthquake struck on March 25th, 2020.

In total, 40 earthquakes 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 3 months.

Low tsunami risk

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.

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 5.7. Earthquakes of this strength are unlikely to trigger a tsunami.	This earthquake occurred at a depth of of 46 km (28 mi). Earthquakes this shallow could trigger a tsunami.

Sources

Last updated 09/11/25 07:48 (). 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.