M6.9 Earthquake: 76 km NE of Ozernovskiy, Russia

Updated 09:05 UTC · 29 Oct 2026

A magnitude 6.9 earthquake struck 76 km NE of Ozernovskiy, Russia at 03:35 UTC on 16 Oct 2026, at a depth of 135 km, reported by USGS. USGS PAGER issued a green alert: little or no damage and a low chance of deaths. USGS did not set a tsunami flag for this quake. No M2.5+ aftershock had been listed within 82 km when this page was updated.

M6.9

Magnitude (USGS)

mww

135 km

Depth

intermediate

GREEN

USGS PAGER impact alert

estimated impact

Aftershocks M2.5+ so far

within 82 km

[ fig. 1 ] M6.9 EPICENTRE, AFTERSHOCKS AND PAST QUAKESThis quakeAftershock M5+AftershockPast M6+

USGS · updated 09:05 UTC 2026-10-29Tap a point for details · pinch or ctrl + scroll to zoomTrack this live in the app ›

Nearest places

Ozernovskiy, Kamchatka, Russia76 km from the epicentre · quake was NE of here · population 2,61576 KM
Vilyuchinsk, Kamchatka, Russia131 km from the epicentre · quake was SW of here · population 25,204131 KM
Petropavlovsk-Kamchatsky, Kamchatka, Russia152 km from the epicentre · quake was SW of here · population 181,216152 KM
Yelizovo, Kamchatka, Russia154 km from the epicentre · quake was SSW of here · population 40,692154 KM
Klyuchi, Kamchatka, Russia536 km from the epicentre · quake was SSW of here · population 10,000536 KM

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Strongest aftershocks so far

No M2.5+ aftershock listed yet.

Key context

Tectonic setting

Kuril-Kamchatka Trench. The Pacific Plate dives beneath the Okhotsk Plate along the Kuril-Kamchatka Trench at about 8 cm per year. This trench produced the M9.0 Kamchatka quake of 1952 and a M8.8 quake off Kamchatka in July 2025; deep quakes under the Sea of Okhotsk come from the same sinking slab.

The USGS moment tensor shows strike-slip faulting: the two sides of the fault slid sideways past each other.

At 135 km it was an intermediate-depth quake. These are felt over a wide area, but the shaking at the surface is usually weaker than from a shallow quake of the same size, and they rarely cause tsunamis.

Shaking and impact

USGS PAGER estimates the impact from the shaking and the number of people exposed. For this quake it issued a green alert: little or no damage and a low chance of deaths (fatality alert: green, economic loss alert: green). PAGER is an early estimate and can change as reports come in.

The USGS ShakeMap estimates the strongest shaking at intensity VI on the Modified Mercalli scale (strong).

2 people sent a "Did You Feel It?" report to USGS, with the strongest reported intensity V (moderate).

Estimated shaking in nearby towns, from USGS PAGER.
Town	Population	Estimated intensity
Petropavlovsk-Kamchatskiy	181,216	IV (light)
Vilyuchinsk	21,973	IV (light)
Ust'-Bol'sheretsk	1,920	V (moderate)
Nikolayevka	1,815	V (moderate)
Oktyabr'skiy	1,534	V (moderate)
Kavalerskoye	798	V (moderate)
Bol'sheretsk	10	V (moderate)

Aftershocks

This page counts quakes of M2.5 or more within 82 km after the main shock, from the USGS catalog (last checked 09:05 UTC, 29 Oct 2026): 0 aftershocks so far.

Aftershocks are normal after a quake of this size. They usually become less frequent over days and weeks, but a strong aftershock can still happen, and in a few sequences a later quake is larger. No one can predict their exact time or size; follow the official agency for your area.

Earthquake history within 250 km

Since 1976, USGS lists 925 quakes of M5 or more within 250 km of this epicentre, about 19 a year. Since 1900 the same circle had 20 quakes of M6.9 or larger.

Largest earlier quakes within 250 km, USGS catalog since 1900 (M6+).
Magnitude	Place (USGS)	Date	Depth
M9.0	89 km ESE of Petropavlovsk-Kamchatsky, Russia	1952-11-04	22 km
M8.8	2025 Kamchatka Peninsula, Russia Earthquake	2025-07-29	35 km
M7.9	76 km ENE of Petropavlovsk-Kamchatsky, Russia	1959-05-04	55 km
M7.7	115 km ESE of Petropavlovsk-Kamchatsky, Russia	1904-06-25	30 km
M7.5	97 km ESE of Ozernovskiy, Russia	1993-06-08	71 km
M7.4	105 km E of Petropavlovsk-Kamchatsky, Russia	2025-09-13	58 km
M7.4	2025 Eastern Kamchatka, Russia Earthquake	2025-07-20	34 km
M7.4	95 km NNE of Ozernovskiy, Russia	1911-05-04	150 km

Official information

EMSC (European-Mediterranean Seismological Centre)
USGS event page for this quake (ShakeMap, PAGER, felt reports)
tsunami.gov for US tsunami bulletins

Data status

USGS review status: reviewed. Magnitude type: mww. USGS last updated this event on 17 Oct 2026 at 03:41 UTC. Magnitude, depth and location can still be revised; this page keeps the same address if they change.

Questions and answers

How strong was the earthquake near Ozernovskiy, Russia?

USGS measured it at magnitude 6.9 (mww), 135 km deep. The strongest estimated shaking was intensity VI (strong). Quakes of M6 to 6.9 are classed as strong.

Was there a tsunami?

USGS did not set a tsunami flag for this quake, and at 135 km depth it was too deep to move the sea floor much. If you are on a coast and feel strong or long shaking, move to high ground anyway, and follow local officials.

Was the earthquake felt?

Yes. 2 people reported it to USGS "Did You Feel It?", with reports up to intensity V.

Will there be more aftershocks?

Aftershocks are likely to continue for days to weeks, becoming less frequent over time. So far 0 aftershocks of M2.5+ have been listed. Most sequences do not produce a larger quake, but some do. No one can predict the time or size of the next one; follow EMSC (European-Mediterranean Seismological Centre).

What should I do after a strong earthquake?

Expect aftershocks: Drop, Cover and Hold On when shaking starts again. Check for injuries and damage, stay out of damaged buildings, and use text messages instead of calls so emergency lines stay free. On a coast, move to high ground after strong shaking. Follow your local officials.

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Sources

USGS event page: magnitude, location, ShakeMap, PAGER and Did You Feel It? data for this event. Public domain. Credit: U.S. Geological Survey.
USGS ComCat (FDSN event web service): the USGS earthquake catalog, used for the 30-year counts, history and aftershocks. Public domain. Credit: U.S. Geological Survey.
USGS Geoserve: nearest places to the epicentre.
GeoNames: large-city coordinates, CC BY 4.0.

Page built 09:05 UTC, 2026-10-29. Full list: data sources and method.