Updated 2026-08-28 03:11:03 UTC

M 1.6 — 30 km NW of Cooper Landing, Alaska

Magnitude 1.6, depth 50.1 km, 2026-08-28 02:04:00 UTC.

MagnitudeM 1.6
Depth50.1 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 50.1 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#196,600
Magnitude rank in country#12,282
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 · 30 km NW of Cooper Landing, Alaska · 250 kmInteractive 3D view of earthquakes within 250 km of M 1.6 · 30 km NW of Cooper Landing, Alaska.M 1.6 · 30 km NW of Cooper Landing, AlaskaM 2.3 · 64 km SE of Pope-Vannoy Landing, Alaska · 248.4 kmM 2.1 · 11 km ESE of Chickaloon, Alaska · 159.7 kmM 2.3 · 15 km E of Nikiski, Alaska · 44.0 kmM 2.3 · 6 km W of Houston, Alaska · 107.6 kmM 2.4 · 64 km E of Pedro Bay, Alaska · 176.1 kmM 2.2 · 3 km NNE of Houston, Alaska · 111.3 kmM 2.1 · 15 km SSE of Port Graham, Alaska · 184.6 kmM 2.1 · 26 km SSE of Chickaloon, Alaska · 145.2 kmM 2.0 · 60 km N of Chickaloon, Alaska · 205.5 kmM 2.3 · 3 km ENE of Big Lake, Alaska · 95.7 kmM 1.7 · 21 km WNW of Seldovia, Alaska · 161.9 kmM 2.3 · 59 km WNW of Ninilchik, Alaska · 142.4 kmM 2.3 · 92 km SSE of Port Graham, Alaska · 232.7 kmM 1.9 · 44 km WNW of Ninilchik, Alaska · 134.8 kmM 0.1 · 63 km ENE of Pedro Bay, Alaska · 173.6 kmM 2.4 · 56 km WNW of Nikiski, Alaska · 113.8 kmM 2.3 · 65 km ENE of Pedro Bay, Alaska · 172.0 kmM 2.1 · 58 km ENE of Chase, Alaska · 234.1 kmM 1.8 · 23 km N of Valdez, Alaska · 219.8 kmM 1.6 · 25 km W of Susitna, Alaska · 106.5 kmM 2.2 · 11 km SE of Ninilchik, Alaska · 107.0 kmM 1.7 · 71 km WNW of Ninilchik, Alaska · 144.6 kmM 2.1 · 68 km SSW of Nanwalek, Alaska · 243.4 kmM 1.5 · 20 km NW of Glacier View, Alaska · 186.7 kmM -0.3 · 60 km W of Tyonek, Alaska · 122.5 kmM 2.0 · 38 km NNW of Valdez, Alaska · 214.2 kmM 2.2 · 4 km ESE of Big Lake, Alaska · 93.4 kmM 2.0 · 31 km SE of Skwentna, Alaska · 131.6 kmM -0.9 · 60 km ENE of Pedro Bay, Alaska · 176.3 kmM -0.3 · 60 km ENE of Pedro Bay, Alaska · 176.6 kmM 1.5 · 13 km SSW of Nelchina, Alaska · 223.3 kmM -0.5 · 65 km ENE of Pedro Bay, Alaska · 171.1 kmM -0.4 · 67 km ENE of Pedro Bay, Alaska · 169.3 kmM 2.0 · 22 km ESE of Ninilchik, Alaska · 95.3 kmM 2.2 · 79 km N of Chickaloon, Alaska · 225.5 kmM 2.0 · 7 km WNW of Point MacKenzie, Alaska · 79.7 kmM 0.3 · 54 km NE of Pedro Bay, Alaska · 183.6 kmM 1.1 · 45 km E of Port Alsworth, Alaska · 188.1 kmM 2.7 · 34 km ESE of Pedro Bay, Alaska · 216.0 kmM 0.0 · 65 km W of Happy Valley, Alaska · 162.1 kmM 1.5 · 5 km NNW of Anchor Point, Alaska · 131.6 kmM -1.0 · 74 km NW of Ninilchik, Alaska · 135.7 kmM 0.4 · 61 km ENE of Pedro Bay, Alaska · 175.3 kmM 0.5 · 83 km SW of Skwentna, Alaska · 150.7 kmM 1.9 · 24 km ENE of Sterling, Alaska · 11.1 kmM 2.7 · 35 km N of Valdez, Alaska · 220.9 kmM 1.3 · 4 km WSW of Diamond Ridge, Alaska · 138.0 kmM -0.6 · 64 km ENE of Pedro Bay, Alaska · 172.3 kmM 0.5 · 49 km SSW of Skwentna, Alaska · 128.1 kmM 2.0 · 21 km NE of Moose Pass, Alaska · 59.5 kmM -1.1 · 63 km ENE of Pedro Bay, Alaska · 173.3 kmM 0.5 · 54 km W of Tyonek, Alaska · 116.4 kmM 1.8 · 18 km ESE of Kasilof, Alaska · 60.2 kmM 2.4 · 45 km NW of Petersville, Alaska · 239.4 kmM 2.2 · 33 km SE of Skwentna, Alaska · 129.8 kmM 1.9 · 44 km E of Pedro Bay, Alaska · 199.0 kmM 0.6 · 48 km NE of Pedro Bay, Alaska · 189.1 kmM -0.6 · 63 km ENE of Pedro Bay, Alaska · 173.7 kmM 2.0 · 12 km SW of Big Lake, Alaska · 85.3 kmM 0.3 · 61 km WNW of Tyonek, Alaska · 123.1 kmM 1.7 · 2 km ENE of Salamatof, Alaska · 58.9 kmM 2.3 · 31 km N of Petersville, Alaska · 234.0 kmM -0.8 · 64 km ENE of Pedro Bay, Alaska · 172.9 kmM 2.4 · 34 km ESE of Skwentna, Alaska · 131.7 kmM 1.5 · 5 km S of Point MacKenzie, Alaska · 71.2 kmM -0.3 · 63 km ENE of Pedro Bay, Alaska · 173.5 kmM 1.7 · 10 km N of Meadow Lakes, Alaska · 119.5 kmM 1.9 · 3 km SW of Skwentna, Alaska · 157.4 kmM 1.3 · 16 km SSE of Susitna North, Alaska · 151.7 kmM -0.5 · 65 km ENE of Pedro Bay, Alaska · 172.0 kmM 1.6 · 20 km SE of Skwentna, Alaska · 138.8 kmM 0.6 · 63 km ENE of Pedro Bay, Alaska · 173.9 kmM -0.4 · 63 km ENE of Pedro Bay, Alaska · 174.1 kmM 2.0 · 56 km SW of Tatitlek, Alaska · 146.6 kmM 1.5 · 67 km ENE of Pedro Bay, Alaska · 170.4 kmM 2.3 · 12 km SSE of Susitna North, Alaska · 156.5 kmM 3.7 · 14 km SSE of Susitna North, Alaska · 152.9 kmM 1.6 · 67 km E of Port Alsworth, Alaska · 166.0 kmM 2.0 · 13 km WNW of Willow, Alaska · 124.3 kmM 2.1 · 57 km ENE of Pedro Bay, Alaska · 179.8 kmM 2.8 · 56 km WNW of Anchor Point, Alaska · 169.0 kmM 3.4 · 33 km W of Nanwalek, Alaska · 190.9 kmM 1.4 · 51 km WNW of Anchor Point, Alaska · 159.2 kmM 1.8 · 13 km SE of Skwentna, Alaska · 147.0 kmM 0.7 · 51 km ENE of Pedro Bay, Alaska · 185.8 kmM 1.6 · 58 km E of Pedro Bay, Alaska · 189.1 kmM 3.2 · 27 km ESE of Skwentna, Alaska · 140.5 kmM 3.2 · 21 km SW of Susitna, Alaska · 83.1 kmM 2.6 · 53 km W of Cohoe, Alaska · 114.8 kmM 2.8 · 50 km W of Anchor Point, Alaska · 165.4 kmM 1.8 · 54 km WNW of Nanwalek, Alaska · 199.9 kmM 1.2 · 75 km W of Salamatof, Alaska · 134.4 kmM 1.6 · 29 km NE of Chase, Alaska · 217.6 kmM 2.4 · 9 km NNE of Susitna, Alaska · 105.4 kmM 1.8 · 11 km ESE of Susitna, Alaska · 93.4 kmM 1.9 · 39 km NE of Petersville, Alaska · 233.9 kmM 1.7 · 47 km WNW of Happy Valley, Alaska · 143.7 kmM 2.2 · 22 km SE of Kasilof, Alaska · 67.3 kmM 2.1 · 37 km WNW of Nanwalek, Alaska · 190.1 kmM 0.2 · 64 km ENE of Pedro Bay, Alaska · 172.6 km
M 1.6 · 30 km NW of Cooper Landing, Alaska250 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 · 250 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 1.6 → M 1.6
Depth change+0.0 km
Last update75629 min
2026-08-28 03:11:03 UTC2026-08-28 03:11:03 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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