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M2.1 Earthquake near Ninilchik, United States — 14 December 2025, 04:37 UTC

A minor earthquake of magnitude 2.1 was recorded near Ninilchik, United States on , with an epicentre 64 km northwest of Ninilchik, at a focal depth of 120.3 km. It ranked as the 1394th strongest of 6797 earthquakes recorded in the United States in the preceding 30 days.

2.1 Minor

Time (UTC): 2025-12-14 04:37:28

Time (your timezone): —

Magnitude: 2.1 (minor)

Focal depth: 120.3 km (intermediate)

Epicentre: 60.4160, -152.5620

Location: 64 km NW of Ninilchik, Alaska

Country: United States

USGS link to NOAA tsunami information: Not linked

Review status: Automatic

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 2.1 earthquake radiates roughly 21 kg of TNT equivalent in seismic energy.

The USGS assigns this earthquake a significance score of 68, 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 18:27 local solar time at the epicentre, in the evening.

This event was deeper than 99% of the 155,430 earthquakes recorded in the United States in our catalogue and stronger than 86% of them.

Where was the epicentre?

The epicentre was located at 60.4160, -152.5620 — 64 km northwest of Ninilchik. The closest other recorded event was a magnitude 1.6 earthquake 7 km west-northwest of here on 10 September 2026.

The nearest other settlements in our records are Anchor Point (93 km south), Aleneva (244 km south-southwest) and Alaska Peninsula National Wildlife Refuge (248 km south-southwest).

Why the 120 km depth matters

At 120 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, events this small are usually detected by instruments rather than people. 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 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 M2.1 it falls below the magnitude 6.5 threshold that generally applies before a submarine earthquake displaces enough water to generate a damaging tsunami; its 120 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

86 further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event, the largest of them magnitude 3.8.

40 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 6.0 event near Susitna on 27 November 2025. This M2.1 event released about 707,946 times less energy than that event.

4745 earthquakes have been recorded within 100 km of this epicentre in the past year, 288 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 the United States during December 2025. Browse the full monthly archive to compare periods.

Nearest recorded earthquakes to this epicentre

Other recent earthquakes in the United States

All recorded earthquakes in the United States →

Other magnitude 2 earthquakes worldwide

All magnitude 2 earthquakes →

Questions about this earthquake

How strong was the earthquake near Ninilchik?

It measured magnitude 2.1 — a minor earthquake. A magnitude 2.1 earthquake radiates roughly 21 kg of TNT equivalent in seismic energy.

How deep was the earthquake near Ninilchik?

The focus was 120 km below the surface, which counts as intermediate.

Was the Ninilchik earthquake felt at the surface?

At magnitude 2.1 and a focal depth of 120 km, the depth spreads the energy out, so shaking is weaker overhead but reaches further.

When did the earthquake near Ninilchik happen?

14 December 2025 at 04:37 UTC.

Was there a tsunami?

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

Have there been aftershocks?

86 further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event, the largest of them magnitude 3.8.

How often do earthquakes happen near Ninilchik?

40 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 6.0 event near Susitna on 27 November 2025. This M2.1 event released about 707,946 times less energy than that event.