Earthquake.now

M3.9 Earthquake near Kuril’sk, Russia — 22 June 2026

A minor earthquake of magnitude 3.9 was recorded near Kuril’sk, Russia on , with an epicentre 206 km northwest of Kuril’sk, at a focal depth of 427.3 km. It ranked as the 56th strongest of 55 earthquakes recorded in Russia in the preceding 30 days.

3.9 Minor

Time (UTC): 2026-06-22 21:20:09

Time (your timezone): —

Magnitude: 3.9 (minor)

Focal depth: 427.3 km (deep)

Epicentre: 46.7413, 146.3370

Location: 206 km NW of Kuril’sk, Russia

Country: Russia

USGS link to NOAA tsunami information: Not linked

Review status: Reviewed

Source: USGS event page

How strong was this earthquake?

Minor earthquakes in this range are felt by people close to the epicentre as a brief jolt or rattle, but they very rarely cause any damage.

A magnitude 3.9 earthquake radiates roughly 11 tons of TNT equivalent in seismic energy.

The USGS assigns this earthquake a significance score of 234, 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 07:05 local solar time at the epicentre, around dawn.

This event was deeper than 99% of the 1,906 earthquakes recorded in Russia in our catalogue and stronger than 0% of them.

Where was the epicentre?

The epicentre was located at 46.7413, 146.3370 — 206 km northwest of Kuril’sk. The closest other recorded event was a magnitude 4.5 earthquake 63 km north-northeast of here on 21 August 2026.

The nearest other settlements in our records are Korsakov (97 km west), Yuzhno-Sakhalinsk (120 km west), Makarov (141 km north) and Otrada (150 km south-southwest).

Why the 427 km depth matters

At 427 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 may be noticed locally, especially close to the epicentre. 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 M3.9 it falls below the magnitude 6.5 threshold that generally applies before a submarine earthquake displaces enough water to generate a damaging tsunami; its 427 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.

17 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 5.6 event near Kuril’sk on 12 January 2026. This M3.9 event released about 355 times less 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 3 earthquakes worldwide

All magnitude 3 earthquakes →

Questions about this earthquake

How strong was the earthquake near Kuril’sk?

It measured magnitude 3.9 — a minor earthquake. A magnitude 3.9 earthquake radiates roughly 11 tons of TNT equivalent in seismic energy.

How deep was the earthquake near Kuril’sk?

The focus was 427 km below the surface, which counts as deep.

Was the Kuril’sk earthquake felt at the surface?

At magnitude 3.9 and a focal depth of 427 km, the depth spreads the energy out, so shaking is weaker overhead but reaches further.

When did the earthquake near Kuril’sk happen?

22 June 2026 at 21:20 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 Kuril’sk?

17 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 5.6 event near Kuril’sk on 12 January 2026. This M3.9 event released about 355 times less energy than that event.