Updated 2026-08-20 21:20:12 UTC

M 3.8 — 32 km E of Halibut Cove, Alaska

Magnitude 3.8, depth 34.9 km, 2026-08-17 05:07:49 UTC.

MagnitudeM 3.8
Depth34.9 km
Felt reports59
Statusreviewed
TsunamiNo
Quake Pulse Activity Index

Activity trend

A high index means recent activity is high relative to the selected historical baseline. It does not mean that a larger earthquake is about to occur.

Quake Pulse Activity Index84/100Elevated
Current 30 days18
Historical monthly median11.0
Historical percentileP84
M5+ in 30 days6
M6+ in 30 days0
Activity trendabove the historical median (+64%)
Baseline months: 60Last calculation: 2026-09-03 06:17:39How the index works →
Quake Pulse

What to know

A short factual reading of this event from the available observations.

  • Magnitude M 3.8 at 34.9 km depth.
  • 59 felt report(s) are associated with the USGS record.
Counts describe detected earthquakes and are not a forecast or hazard assessment.
Quake Pulse

Within the Quake Pulse database

Long-term comparisons are more robust at higher magnitudes because small-earthquake detection capability has changed over time.

Magnitude rank in database#188,466
Magnitude rank in country#5,054
M4.5+ within 250 km, ±15 days0
Quake Pulse

Impact and context

Descriptive indicators available for this event and its surroundings.

10/100Limited context
Felt reports59
Max felt intensity (CDI)3.1
Instrumental intensity (MMI)3.3
PAGER alertNot available
Tsunami indicator—
USGS significance240
Depth contextShallow
Nearby major city—
250 km

Local historical context

Descriptive comparison with earlier events within 250 km.

M4.5+ in previous year0Earlier local maximum—
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These indicators describe data available after detection. They are neither a forecast nor a direct estimate of damage or individual risk.

Quake Pulse

Around this epicenter

Nearby events observed around this epicenter. Spatial proximity does not necessarily mean they belong to the same sequence.

M 3.8 · 32 km E of Halibut Cove, Alaska · 100 kmInteractive 3D view of earthquakes within 100 km of M 3.8 · 32 km E of Halibut Cove, Alaska.M 3.8 · 32 km E of Halibut Cove, AlaskaM 1.7 · 14 km NW of Bear Creek, Alaska · 93.3 kmM 1.5 · 15 km ESE of Clam Gulch, Alaska · 70.1 kmM 1.6 · 13 km S of Funny River, Alaska · 86.6 kmM 1.4 · 18 km NW of Ninilchik, Alaska · 93.6 kmM 1.1 · 15 km WNW of Happy Valley, Alaska · 86.8 kmM 2.1 · 20 km SW of Anchor Point, Alaska · 81.9 kmM 1.6 · 15 km ESE of Clam Gulch, Alaska · 68.7 kmM 1.2 · 6 km N of Port Graham, Alaska · 68.9 kmM 2.4 · 5 km SW of Happy Valley, Alaska · 73.5 kmM 2.4 · 29 km SW of Anchor Point, Alaska · 88.6 kmM 1.6 · 32 km NW of Nanwalek, Alaska · 98.0 kmM 1.5 · 9 km ENE of Happy Valley, Alaska · 64.9 kmM 1.5 · 13 km W of Ninilchik, Alaska · 87.0 kmM 1.8 · 25 km WNW of Happy Valley, Alaska · 96.0 kmM 2.8 · 7 km SW of Cohoe, Alaska · 90.5 kmM 2.3 · 15 km ESE of Funny River, Alaska · 96.1 kmM 1.9 · 8 km NW of Anchor Point, Alaska · 76.3 kmM 1.9 · 16 km SSE of Funny River, Alaska · 83.8 kmM 1.4 · 10 km SSE of Fox River, Alaska · 23.0 kmM 2.0 · 33 km WNW of Seward, Alaska · 73.1 kmM 1.5 · 19 km SE of Clam Gulch, Alaska · 61.7 kmM 1.6 · 15 km NNW of Ninilchik, Alaska · 87.9 kmM 1.7 · 12 km NE of Nikolaevsk, Alaska · 53.7 kmM 1.9 · 7 km NNW of Fritz Creek, Alaska · 44.1 kmM 1.6 · 7 km S of Kasilof, Alaska · 80.9 kmM 1.3 · 11 km W of Happy Valley, Alaska · 82.2 kmM 1.6 · 7 km SSW of Clam Gulch, Alaska · 76.5 kmM 1.6 · 24 km W of Happy Valley, Alaska · 93.1 kmM 1.9 · 9 km W of Seldovia, Alaska · 70.9 kmM 2.4 · 23 km N of Fox River, Alaska · 53.2 kmM 2.2 · 16 km WSW of Anchor Point, Alaska · 80.4 kmM 1.5 · 10 km NW of Fritz Creek, Alaska · 47.6 kmM 1.7 · 8 km NW of Diamond Ridge, Alaska · 57.9 kmM 1.8 · 6 km W of Diamond Ridge, Alaska · 57.5 kmM 2.2 · 30 km SE of Kasilof, Alaska · 62.4 kmM 1.7 · 17 km WNW of Ninilchik, Alaska · 93.1 kmM 3.9 · 25 km NW of Anchor Point, Alaska · 93.2 kmM 2.5 · 20 km S of Port Graham, Alaska · 79.6 kmM 1.5 · 24 km S of Funny River, Alaska · 75.9 kmM 3.4 · 30 km NE of Fox River, Alaska · 47.1 kmM 2.0 · 17 km WNW of Happy Valley, Alaska · 88.6 kmM 1.7 · 6 km ENE of Fritz Creek, Alaska · 35.2 kmM 1.8 · 14 km S of Clam Gulch, Alaska · 68.6 kmM 1.6 · 16 km WNW of Anchor Point, Alaska · 85.7 kmM 2.7 · 44 km NE of Fox River, Alaska · 58.6 kmM 1.9 · 7 km NNE of Anchor Point, Alaska · 67.3 kmM 1.5 · 41 km SE of Fox River, Alaska · 10.9 kmM 1.6 · 6 km NNW of Seldovia, Alaska · 64.0 kmM 1.6 · 18 km SE of Port Graham, Alaska · 64.9 kmM 2.3 · 17 km SE of Clam Gulch, Alaska · 64.7 kmM 2.0 · 11 km NE of Fritz Creek, Alaska · 35.5 kmM 1.6 · 9 km SW of Anchor Point, Alaska · 75.4 kmM 1.6 · 8 km ESE of Nikolaevsk, Alaska · 50.0 kmM 1.4 · 5 km ENE of Ninilchik, Alaska · 73.3 kmM 1.4 · 25 km SW of Anchor Point, Alaska · 82.8 kmM 1.9 · 23 km W of Nanwalek, Alaska · 97.2 kmM 1.9 · 23 km WSW of Cooper Landing, Alaska · 95.2 kmM 2.0 · 28 km SSE of Halibut Cove, Alaska · 29.8 kmM 2.8 · 5 km NNW of Diamond Ridge, Alaska · 55.0 kmM 2.5 · 13 km NNE of Fox River, Alaska · 42.1 kmM 2.4 · 18 km SW of Cooper Landing, Alaska · 91.9 kmM 2.1 · 12 km ENE of Kasilof, Alaska · 87.1 kmM 2.2 · 7 km E of Clam Gulch, Alaska · 77.3 kmM 2.6 · 26 km SW of Anchor Point, Alaska · 85.9 kmM 2.5 · 23 km SE of Kasilof, Alaska · 69.8 kmM 1.7 · 14 km E of Happy Valley, Alaska · 59.0 kmM 1.9 · 34 km ESE of Halibut Cove, Alaska · 15.6 kmM 2.1 · 15 km W of Ninilchik, Alaska · 88.4 kmM 1.6 · 18 km ESE of Lowell Point, Alaska · 98.5 kmM 1.9 · 31 km SW of Anchor Point, Alaska · 89.8 kmM 1.7 · 15 km SSW of Nanwalek, Alaska · 86.8 kmM 2.1 · 4 km W of Diamond Ridge, Alaska · 55.6 kmM 1.7 · 11 km WNW of Fox River, Alaska · 42.3 kmM 1.7 · 12 km SSE of Fox River, Alaska · 20.8 kmM 1.4 · 23 km SW of Nanwalek, Alaska · 99.3 kmM 2.3 · 15 km W of Anchor Point, Alaska · 83.5 kmM 1.9 · 9 km E of Clam Gulch, Alaska · 76.8 kmM 2.5 · 16 km SE of Lowell Point, Alaska · 89.0 kmM 2.1 · 16 km SE of Lowell Point, Alaska · 87.4 kmM 1.8 · 16 km SE of Lowell Point, Alaska · 89.1 kmM 1.2 · 34 km SW of Anchor Point, Alaska · 95.0 kmM 1.4 · 11 km SE of Clam Gulch, Alaska · 69.3 kmM 2.1 · 4 km SSW of Anchor Point, Alaska · 68.7 kmM 2.0 · 3 km SE of Happy Valley, Alaska · 68.0 kmM 1.8 · 25 km WNW of Nanwalek, Alaska · 95.9 kmM 1.9 · 22 km WSW of Cooper Landing, Alaska · 93.5 kmM 1.7 · 6 km NNE of Clam Gulch, Alaska · 84.3 kmM 2.0 · 19 km SE of Lowell Point, Alaska · 93.3 kmM 2.2 · 5 km N of Anchor Point, Alaska · 70.3 kmM 1.7 · 82 km SE of Port Graham, Alaska · 94.1 kmM 1.6 · 4 km WNW of Seldovia, Alaska · 65.6 kmM 2.4 · 12 km W of Clam Gulch, Alaska · 88.5 kmM 1.7 · 13 km NE of Nikolaevsk, Alaska · 52.8 kmM 1.5 · 35 km SSE of Funny River, Alaska · 66.7 kmM 1.5 · 6 km WNW of Anchor Point, Alaska · 74.9 kmM 1.5 · 23 km W of Happy Valley, Alaska · 93.5 kmM 3.1 · 16 km SSW of Funny River, Alaska · 84.3 kmM 2.0 · 34 km NE of Fox River, Alaska · 53.1 kmM 1.4 · 36 km WSW of Anchor Point, Alaska · 98.6 kmM 1.8 · 5 km SSE of Ninilchik, Alaska · 70.6 km
M 3.8 · 32 km E of Halibut Cove, Alaska100 km100 Recent earthquakes

Descriptive map centered on the epicenter; it does not represent felt intensity or risk.

Sequence context

No public sequence is currently associated with this event.

Nearby events · 100 km

Quake Pulse

USGS data evolution

Earthquake parameters can be revised after first publication. This timeline shows versions retained by Quake Pulse.

Revisions1
Magnitude change+0.0M 3.8 → M 3.8
Depth change+0.0 km
Last update86355 min
2026-08-20 21:20:12 UTC2026-08-20 21:20:12 UTC

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Putting this earthquake in context

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Interpret the numbers

Magnitude, depth, felt reports and status describe different parts of the event. None of them alone predicts the consequences for a specific city.

Important limits

If the earthquake creates a safety concern, follow local authorities and official warning channels rather than relying on a public data website.

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