M4.4 Earthquake near Pos’yet, Russia — 16 December 2025
A light earthquake of magnitude 4.4 was recorded near Pos’yet, Russia on , with an epicentre 15 km south of Pos’yet, at a focal depth of 589.8 km. It ranked as the 51st strongest of 56 earthquakes recorded in Russia in the preceding 30 days.
Time (UTC): 2025-12-16 14:38:43
Time (your timezone): —
Magnitude: 4.4 (light)
Focal depth: 589.8 km (deep)
Epicentre: 42.5105, 130.8200
Location: 15 km S of Pos’yet, Russia
Country: Russia
USGS link to NOAA tsunami information: Not linked
Review status: Reviewed
Source: USGS event page
How strong was this earthquake?
Light earthquakes are widely felt near the epicentre and can rattle windows, dishes and hanging objects. Damage is uncommon and usually limited to cracked plaster or fallen loose items.
A magnitude 4.4 earthquake radiates roughly 60 tons of TNT equivalent in seismic energy.
The USGS assigns this earthquake a significance score of 298, 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 23:21 local solar time at the epicentre, late at night.
This event was deeper than 100% of the 1,906 earthquakes recorded in Russia in our catalogue and stronger than 11% of them.
Where was the epicentre?
The epicentre was located at 42.5105, 130.8200 — 15 km south of Pos’yet. The closest other recorded event was a magnitude 5.2 earthquake 65 km north-northeast of here on 25 October 2025.
The nearest other settlements in our records are Slavyanka (65 km north-northeast), Barabash (113 km north-northeast), Romanovka (155 km east-northeast) and Mnogoudobnoye (176 km northeast).
Why the 590 km depth matters
At 590 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 is often felt across the surrounding area. 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 M4.4 it falls below the magnitude 6.5 threshold that generally applies before a submarine earthquake displaces enough water to generate a damaging tsunami; its 590 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.
4 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 5.2 event near Slavyanka on 25 October 2025. This M4.4 event released about 16 times less energy than that event.
1 earthquakes have been recorded within 100 km of this epicentre in the past year, 0 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 December 2025 worldwide record, and of earthquakes in Russia during December 2025. Browse the full monthly archive to compare periods.
Nearest recorded earthquakes to this epicentre
- M5.2 earthquake near Slavyanka, Russia — (65 km NNE)
- M4.0 earthquake near Barabash, Russia — (113 km NNE)
Other recent earthquakes in Russia
- M4.5 earthquake near Severo-Kuril’sk, Russia —
- M4.6 earthquake near Vilyuchinsk, Russia —
- M5.5 earthquake near Kuril’sk, Russia —
- M4.6 earthquake near Kuril’sk, Russia —
- M4.5 earthquake near Vilyuchinsk, Russia —
- M4.0 earthquake near Terney, Russia —
- M4.6 earthquake near Kuril’sk, Russia —
- M4.2 earthquake near Kuril’sk, Russia —
- M5.0 earthquake near Petropavlovsk-Kamchatsky, Russia —
- M4.5 earthquake near Vilyuchinsk, Russia —
Other magnitude 4 earthquakes worldwide
- M4.5 earthquake near Puerto Madero, Mexico —
- M4.7 earthquake near Alianza Cristiana, Peru —
- M4.4 earthquake near Puerto Madero, Mexico —
- M4.2 earthquake near Lake Louise, United States —
- M4.3 earthquake near La Tirana, Chile —
- M4.3 earthquake near Puerto Madero, Mexico —
- M4.7 earthquake near Isangel, Vanuatu —
- M4.6 earthquake near Rasht, Tajikistan —
Questions about this earthquake
How strong was the earthquake near Pos’yet?
It measured magnitude 4.4 — a light earthquake. A magnitude 4.4 earthquake radiates roughly 60 tons of TNT equivalent in seismic energy.
How deep was the earthquake near Pos’yet?
The focus was 590 km below the surface, which counts as deep.
Was the Pos’yet earthquake felt at the surface?
At magnitude 4.4 and a focal depth of 590 km, the depth spreads the energy out, so shaking is weaker overhead but reaches further.
When did the earthquake near Pos’yet happen?
16 December 2025 at 14:38 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 Pos’yet?
4 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 5.2 event near Slavyanka on 25 October 2025. This M4.4 event released about 16 times less energy than that event.