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M8.0 Earthquake near Petropavlovsk-Kamchatsky, Russia — 29 July 2025

A great earthquake of magnitude 8.0 was recorded near Petropavlovsk-Kamchatsky, Russia on , with an epicentre 133 km southeast of Petropavlovsk-Kamchatsky, at a focal depth of 74.0 km. It ranked as the 2nd strongest of 188 earthquakes recorded in Russia in the preceding 30 days.

8.0 Great

Time (UTC): 2025-07-29 23:24:56

Time (your timezone): —

Magnitude: 8.0 (great)

Focal depth: 74.0 km (intermediate)

Epicentre: 52.2000, 160.0000

Location: 133 km SE of Petropavlovsk-Kamchatsky, Russia

Country: Russia

USGS link to NOAA tsunami information: Available

Review status: Reviewed

Source: USGS event page

How strong was this earthquake?

Great earthquakes are among the largest events ever recorded and can devastate areas hundreds of kilometres across. Offshore events of this size are the primary cause of destructive ocean-wide tsunamis.

A magnitude 8.0 earthquake radiates roughly 15.1 million tons of TNT equivalent in seismic energy.

The USGS assigns this earthquake a significance score of 985, which meets the USGS threshold of more than 600 for its significant-earthquake list. The ranking combines magnitude with available Did You Feel It responses and PAGER alert level; it is not a direct measurement of damage.

What the magnitude scale actually measures →

When it happened locally

That is about 10:04 local solar time at the epicentre, during the morning.

This event was deeper than 90% of the 1,906 earthquakes recorded in Russia in our catalogue and stronger than 100% of them.

Where was the epicentre?

The epicentre was located at 52.2000, 160.0000 — 133 km southeast of Petropavlovsk-Kamchatsky. The closest other recorded event was a magnitude 4.6 earthquake 16 km south-southeast of here on 06 August 2026.

The nearest other settlements in our records are Mil’kovo (194 km north-northwest) and Ozernovskiy (196 km south).

Why the 74 km depth matters

At 74 km this was an intermediate-depth earthquake. Energy from events at this depth spreads out before it reaches the surface, which usually means weaker shaking near the epicentre than a shallow quake of the same magnitude, but shaking felt across a wider area.

This catalogue does not ingest eyewitness responses, so it cannot confirm where this earthquake was felt. Based on magnitude alone, an event this size can produce strong, widely felt shaking. Its intermediate depth normally reduces peak shaking near the epicentre compared with a shallow event of the same magnitude.

Read more on how focal depth changes what you feel →

What does the tsunami information flag mean?

The USGS event record links to NOAA tsunami information because this was a large event in an oceanic region. That link flag does not mean a tsunami occurred or that a warning is active. Check tsunami.gov and instructions from your local authority for the current status of your coastline.

How earthquakes generate tsunamis, and what the alert levels mean →

Aftershocks and local seismic history

282 further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event, the largest of them magnitude 6.9.

1299 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 8.7 event near Petropavlovsk-Kamchatsky on 29 July 2025. This M8.0 event released about 11 times less energy than that event.

149 earthquakes have been recorded within 100 km of this epicentre in the past year, 140 of them in the past 30 days.

How long aftershock sequences last, and how large they get →

Where this event sits in the record

This earthquake is part of the July 2025 worldwide record, and of earthquakes in Russia during July 2025. Browse the full monthly archive to compare periods.

Nearest recorded earthquakes to this epicentre

Other recent earthquakes in Russia

All recorded earthquakes in Russia →

Other magnitude 8 earthquakes worldwide

All magnitude 8 earthquakes →

Questions about this earthquake

How strong was the earthquake near Petropavlovsk-Kamchatsky?

It measured magnitude 8.0 — a great earthquake. A magnitude 8.0 earthquake radiates roughly 15.1 million tons of TNT equivalent in seismic energy.

How deep was the earthquake near Petropavlovsk-Kamchatsky?

The focus was 74 km below the surface, which counts as intermediate.

Was the Petropavlovsk-Kamchatsky earthquake felt at the surface?

At magnitude 8.0 and a focal depth of 74 km, the depth spreads the energy out, so shaking is weaker overhead but reaches further.

When did the earthquake near Petropavlovsk-Kamchatsky happen?

29 July 2025 at 23:24 UTC.

Was there a tsunami?

The USGS record carries a link to NOAA tsunami information for this event. That is not a warning: check your regional tsunami warning centre for any live alert.

Have there been aftershocks?

282 further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event, the largest of them magnitude 6.9.

How often do earthquakes happen near Petropavlovsk-Kamchatsky?

1299 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 8.7 event near Petropavlovsk-Kamchatsky on 29 July 2025. This M8.0 event released about 11 times less energy than that event.