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M5.7 Earthquake near Ol’ga, Russia — 10 June 2026

A moderate earthquake of magnitude 5.7 was recorded near Ol’ga, Russia on , with an epicentre 33 km east-southeast of Ol’ga, at a focal depth of 343.3 km. It ranked as the 2nd strongest of 29 earthquakes recorded in Russia in the preceding 30 days.

5.7 Moderate

Time (UTC): 2026-06-10 10:34:17

Time (your timezone):

Magnitude: 5.7 (moderate)

Focal depth: 343.3 km (deep)

Epicentre: 43.6289, 135.6740

Location: 33 km ESE of Ol’ga, Russia

Country: Russia

USGS link to NOAA tsunami information: Not linked

Review status: Reviewed

Source: USGS event page

How strong was this earthquake?

Moderate earthquakes can damage poorly built or unreinforced structures near the epicentre, while well-engineered buildings typically escape serious harm. Shaking is often strong enough to wake sleeping residents over a wide area.

A magnitude 5.7 earthquake radiates roughly 5,351 tons of TNT equivalent in seismic energy.

The USGS assigns this earthquake a significance score of 500, which is below 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 19:36 local solar time at the epicentre, in the evening.

This event was deeper than 99% of the 1,906 earthquakes recorded in Russia in our catalogue and stronger than 97% of them.

Where was the epicentre?

The epicentre was located at 43.6289, 135.6740 — 33 km east-southeast of Ol’ga. The closest other recorded event was a magnitude 4.4 earthquake 139 km southwest of here on 15 April 2026.

The nearest other settlement in our records is Preobrazheniye (139 km southwest).

Why the 343 km depth matters

At 343 km this was a deep-focus earthquake, occurring well inside the subducting slab rather than in the crust. Deep events are rarely damaging even at large magnitudes, though they can be felt over very long distances.

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 be felt widely and may cause minor local damage. Its deep focus normally weakens surface shaking while spreading perceptible motion over a broad area.

Read more on how focal depth changes what you feel →

What does the tsunami information flag mean?

The USGS record does not carry a link to NOAA tsunami information. That field is not an all-clear and does not state whether a tsunami occurred. In this case, a damaging tsunami would be less likely because at M5.7 it falls below the magnitude 6.5 threshold that generally applies before a submarine earthquake displaces enough water to generate a damaging tsunami; its 343 km focal depth is too great to deform the sea floor significantly; it occurred inland rather than beneath the sea floor. For an active coastal alert, use tsunami.gov or your local warning authority.

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

Aftershocks and local seismic history

No further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event.

2 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 4.4 event near Preobrazheniye on 15 April 2026. This M5.7 event released about 89 times more energy than that event.

No other earthquakes have been recorded within 100 km of this epicentre in the past year, which makes this a genuinely isolated event.

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

Where this event sits in the record

This earthquake is part of the June 2026 worldwide record, and of earthquakes in Russia during June 2026. 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 5 earthquakes worldwide

All magnitude 5 earthquakes →

Questions about this earthquake

How strong was the earthquake near Ol’ga?

It measured magnitude 5.7 — a moderate earthquake. A magnitude 5.7 earthquake radiates roughly 5,351 tons of TNT equivalent in seismic energy.

How deep was the earthquake near Ol’ga?

The focus was 343 km below the surface, which counts as deep.

Was the Ol’ga earthquake felt at the surface?

At magnitude 5.7 and a focal depth of 343 km, the depth spreads the energy out, so shaking is weaker overhead but reaches further.

When did the earthquake near Ol’ga happen?

10 June 2026 at 10:34 UTC.

Was there a tsunami?

No. The USGS record carries no tsunami-information link for this event.

Have there been aftershocks?

No further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event.

How often do earthquakes happen near Ol’ga?

2 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 4.4 event near Preobrazheniye on 15 April 2026. This M5.7 event released about 89 times more energy than that event.