Updated 2026-10-19 05:57:16 UTC

M 1.6 — 12 km NNW of Big Lake, Alaska

Magnitude 1.6, depth 51.2 km, 2026-10-18 09:33:09 UTC.

MagnitudeM 1.6
Depth51.2 km
Felt reports—
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 1.6 at 51.2 km depth.
Counts describe detected earthquakes and are not a forecast or hazard assessment.
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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#196,631
Magnitude rank in country#12,304
M4.5+ within 250 km, ±15 days0
Quake Pulse

Impact and context

Descriptive indicators available for this event and its surroundings.

0/100Limited context
Felt reports—
Max felt intensity (CDI)—
Instrumental intensity (MMI)—
PAGER alertNot available
Tsunami indicator—
USGS significance39
Depth contextShallow
Nearby major city—
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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.

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Around this epicenter

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

M 1.6 · 12 km NNW of Big Lake, Alaska · 50 kmInteractive 3D view of earthquakes within 50 km of M 1.6 · 12 km NNW of Big Lake, Alaska.M 1.6 · 12 km NNW of Big Lake, AlaskaM 1.9 · 32 km ESE of Skwentna, Alaska · 49.1 kmM 2.0 · 23 km NW of Fishhook, Alaska · 42.3 kmM 1.7 · 15 km N of Meadow Lakes, Alaska · 28.2 kmM 1.7 · 8 km NW of Big Lake, Alaska · 4.2 kmM 1.8 · 26 km NW of Fishhook, Alaska · 39.6 kmM 1.9 · 13 km WNW of Susitna, Alaska · 35.6 kmM 1.7 · 3 km ENE of Big Lake, Alaska · 12.9 kmM 2.6 · 24 km W of Susitna, Alaska · 48.4 kmM 3.6 · 2 km NW of Knik, Alaska · 22.2 kmM 2.0 · 31 km WNW of Willow, Alaska · 40.4 kmM 1.9 · 1 km N of Houston, Alaska · 13.0 kmM 2.1 · 5 km NNW of Tanaina, Alaska · 30.7 kmM 2.4 · 6 km NNE of Tanaina, Alaska · 36.4 kmM 1.2 · 8 km SW of Big Lake, Alaska · 16.7 kmM 1.7 · 12 km WNW of Fishhook, Alaska · 37.6 kmM 1.7 · 7 km WNW of Point MacKenzie, Alaska · 25.7 kmM 1.9 · 15 km N of Fishhook, Alaska · 50.0 kmM 2.1 · 19 km NW of Susitna, Alaska · 39.8 kmM 2.2 · 11 km SSW of Susitna, Alaska · 34.9 kmM 2.2 · 8 km WNW of Susitna, Alaska · 32.2 kmM 2.4 · 16 km N of Meadow Lakes, Alaska · 30.8 kmM 1.8 · 6 km NW of Houston, Alaska · 8.8 kmM 1.8 · 24 km SW of Susitna, Alaska · 49.3 kmM 2.2 · 6 km SE of Houston, Alaska · 17.0 kmM 1.9 · 7 km WNW of Fishhook, Alaska · 39.3 kmM 2.0 · 26 km SE of Susitna North, Alaska · 49.7 kmM 2.8 · 5 km WSW of Willow, Alaska · 13.2 kmM 1.5 · 2 km SSE of Elmendorf Air Force Base, Alaska · 49.0 kmM 1.8 · 16 km W of Willow, Alaska · 20.2 kmM 1.6 · 15 km NNW of Fishhook, Alaska · 43.9 kmM 1.7 · 10 km WSW of Susitna, Alaska · 35.7 kmM 1.7 · 25 km SSW of Susitna, Alaska · 46.2 kmM 1.7 · 9 km WNW of Point MacKenzie, Alaska · 23.8 kmM 2.2 · 8 km W of Willow, Alaska · 15.0 kmM 1.5 · 4 km SW of Willow, Alaska · 10.7 kmM 3.4 · 4 km NE of Big Lake, Alaska · 11.3 kmM 1.9 · 31 km WNW of Willow, Alaska · 37.9 kmM 1.9 · 3 km SE of Houston, Alaska · 14.8 kmM 0.9 · 5 km NW of Farm Loop, Alaska · 45.2 kmM 2.4 · 10 km NW of Big Lake, Alaska · 2.8 kmM 1.4 · 20 km ENE of Willow, Alaska · 31.1 kmM 1.6 · 14 km WSW of Anchorage, Alaska · 48.0 kmM 2.1 · 9 km W of Point MacKenzie, Alaska · 29.8 kmM 2.1 · 8 km NNE of Susitna, Alaska · 20.9 kmM 1.7 · 31 km WNW of Willow, Alaska · 39.6 kmM 2.1 · 8 km NW of Houston, Alaska · 10.2 kmM 2.5 · 7 km WSW of Willow, Alaska · 13.9 kmM 1.1 · 12 km W of Fishhook, Alaska · 33.9 kmM 1.9 · 6 km ENE of Big Lake, Alaska · 13.9 kmM 1.8 · 19 km SW of Point MacKenzie, Alaska · 42.5 kmM 2.1 · 7 km WNW of Houston, Alaska · 8.3 kmM 2.7 · 23 km SSW of Susitna, Alaska · 43.2 kmM 2.5 · 23 km SSW of Susitna, Alaska · 44.9 kmM 2.0 · 7 km SW of Willow, Alaska · 10.0 kmM 2.0 · 18 km WNW of Susitna, Alaska · 41.1 kmM 1.7 · 12 km NE of Willow, Alaska · 24.5 kmM 1.2 · 5 km S of Fishhook, Alaska · 45.1 kmM 2.9 · 16 km NW of Fishhook, Alaska · 41.9 kmM 2.9 · 24 km WSW of Point MacKenzie, Alaska · 40.5 kmM 1.5 · 34 km ESE of Skwentna, Alaska · 47.1 kmM 2.3 · 6 km W of Houston, Alaska · 6.6 kmM 2.2 · 3 km NNE of Houston, Alaska · 15.3 kmM 2.3 · 3 km ENE of Big Lake, Alaska · 13.4 kmM 1.6 · 25 km W of Susitna, Alaska · 49.8 kmM 2.2 · 4 km ESE of Big Lake, Alaska · 15.8 kmM 2.0 · 7 km WNW of Point MacKenzie, Alaska · 24.8 kmM 2.2 · 33 km SE of Skwentna, Alaska · 48.8 kmM 2.0 · 12 km SW of Big Lake, Alaska · 19.5 kmM 2.4 · 34 km ESE of Skwentna, Alaska · 46.9 kmM 1.5 · 5 km S of Point MacKenzie, Alaska · 34.2 kmM 1.7 · 10 km N of Meadow Lakes, Alaska · 26.6 kmM 1.3 · 16 km SSE of Susitna North, Alaska · 48.3 kmM 3.7 · 14 km SSE of Susitna North, Alaska · 49.4 kmM 2.0 · 13 km WNW of Willow, Alaska · 22.8 kmM 3.2 · 21 km SW of Susitna, Alaska · 44.8 kmM 2.4 · 9 km NNE of Susitna, Alaska · 20.1 kmM 1.8 · 11 km ESE of Susitna, Alaska · 17.0 kmM 2.6 · 3 km WNW of Big Lake, Alaska · 10.5 kmM 2.4 · 6 km NNW of Houston, Alaska · 12.9 kmM 1.8 · 19 km SW of Susitna, Alaska · 43.4 kmM 1.4 · 3 km NNW of Knik, Alaska · 22.1 km
M 1.6 · 12 km NNW of Big Lake, Alaska50 km81 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 · 50 km

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USGS data evolution

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

Revisions1
Magnitude change+0.0M 1.6 → M 1.6
Depth change+0.0 km
Last update815 min
2026-10-19 05:57:16 UTC2026-10-19 05:57:16 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

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