Updated 2026-10-18 17:00:29 UTC

M 1.6 — 17 km S of Eureka Roadhouse, Alaska

Magnitude 1.6, depth 37.7 km, 2026-10-18 16:58:24 UTC.

MagnitudeM 1.6
Depth37.7 km
Felt reports—
Statusautomatic
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 37.7 km depth.
  • The solution has already been revised 2 times in Quake Pulse.
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#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.

Quake Pulse

Around this epicenter

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

M 1.6 · 17 km S of Eureka Roadhouse, Alaska · 250 kmInteractive 3D view of earthquakes within 250 km of M 1.6 · 17 km S of Eureka Roadhouse, Alaska.M 1.6 · 17 km S of Eureka Roadhouse, AlaskaM 2.0 · 60 km NNW of Petersville, Alaska · 240.1 kmM 1.9 · 43 km SW of Chenega, Alaska · 230.4 kmM 1.1 · 55 km N of Chickaloon, Alaska · 85.4 kmM 1.0 · 1 km ESE of Buffalo Soapstone, Alaska · 98.4 kmM 1.9 · 72 km N of Chickaloon, Alaska · 97.5 kmM 0.7 · 45 km ESE of Knik River, Alaska · 65.4 kmM 1.5 · 37 km E of Bear Creek, Alaska · 198.3 kmM 1.8 · 36 km NW of Chenega, Alaska · 180.8 kmM 1.7 · 27 km SSW of Petersville, Alaska · 205.0 kmM 1.9 · 32 km ESE of Skwentna, Alaska · 190.8 kmM 2.4 · 72 km NNE of Petersville, Alaska · 223.5 kmM 2.3 · 37 km SSW of Dry Creek, Alaska · 206.7 kmM 1.4 · 43 km SSE of Nelchina, Alaska · 43.1 kmM 1.7 · 29 km NNW of Petersville, Alaska · 222.4 kmM 2.0 · 23 km NW of Fishhook, Alaska · 122.8 kmM 1.5 · 13 km S of Trapper Creek, Alaska · 165.6 kmM 2.2 · 60 km NNE of Chase, Alaska · 184.8 kmM 1.7 · 3 km WNW of Funny River, Alaska · 240.6 kmM 1.1 · 22 km ENE of Cantwell, Alaska · 197.2 kmM 1.9 · 10 km S of Funny River, Alaska · 245.5 kmM 1.7 · 15 km N of Meadow Lakes, Alaska · 126.9 kmM 2.0 · 29 km ESE of Susitna North, Alaska · 115.7 kmM 1.7 · 64 km E of Cantwell, Alaska · 189.5 kmM 1.7 · 8 km NW of Big Lake, Alaska · 151.3 kmM 1.7 · 8 km ESE of Talkeetna, Alaska · 154.4 kmM 1.8 · 26 km NW of Fishhook, Alaska · 126.5 kmM 1.8 · 29 km W of Susitna, Alaska · 205.5 kmM 1.9 · 45 km NNW of Petersville, Alaska · 232.9 kmM 1.9 · 8 km SE of Talkeetna, Alaska · 154.4 kmM 1.0 · 30 km SSE of Chickaloon, Alaska · 66.5 kmM 1.6 · 12 km NNW of Big Lake, Alaska · 151.5 kmM 1.9 · 4 km NNE of Susitna North, Alaska · 143.3 kmM 2.0 · 28 km NE of Chase, Alaska · 161.0 kmM 1.1 · 23 km SSW of Glacier View, Alaska · 38.7 kmM 1.6 · 14 km WSW of Tyonek, Alaska · 238.1 kmM 0.6 · 40 km SSE of Knik River, Alaska · 100.4 kmM 1.9 · 7 km NE of Kenai, Alaska · 249.3 kmM 2.0 · 20 km N of Moose Pass, Alaska · 170.6 kmM 2.3 · 40 km W of Petersville, Alaska · 240.9 kmM 1.6 · 18 km ENE of Healy, Alaska · 244.7 kmM 1.8 · 42 km E of Chase, Alaska · 132.0 kmM 1.8 · 59 km SE of Denali National Park, Alaska · 242.7 kmM 2.0 · 58 km NNW of Petersville, Alaska · 243.0 kmM 1.9 · 13 km WNW of Susitna, Alaska · 187.0 kmM 1.8 · 30 km NW of Tatitlek, Alaska · 82.8 kmM 1.6 · 18 km N of Skwentna, Alaska · 225.7 kmM 1.1 · 55 km E of Whittier, Alaska · 118.1 kmM 1.5 · 26 km ENE of Susitna North, Alaska · 122.3 kmM 1.0 · 56 km SW of Nabesna, Alaska · 184.1 kmM 1.4 · 32 km WNW of Petersville, Alaska · 233.8 kmM 1.7 · 3 km ENE of Big Lake, Alaska · 144.9 kmM 1.4 · 49 km NE of Kenny Lake, Alaska · 158.5 kmM 2.1 · 16 km E of Point Possession, Alaska · 195.0 kmM 2.4 · 26 km SSW of Petersville, Alaska · 201.4 kmM 2.0 · 15 km E of Point Possession, Alaska · 195.6 kmM 1.5 · 49 km SSE of Nelchina, Alaska · 48.2 kmM 2.5 · 47 km N of Petersville, Alaska · 225.1 kmM 2.1 · 43 km ESE of Cordova, Alaska · 193.4 kmM 3.8 · 41 km NNE of Petersville, Alaska · 207.6 kmM 1.7 · 28 km W of Tatitlek, Alaska · 107.2 kmM 2.5 · 23 km WNW of Petersville, Alaska · 224.7 kmM 2.6 · 33 km SE of Skwentna, Alaska · 197.8 kmM 1.3 · 8 km W of Valdez, Alaska · 81.4 kmM 2.6 · 24 km W of Susitna, Alaska · 199.9 kmM 1.3 · 53 km NNE of Chase, Alaska · 185.7 kmM 2.3 · 40 km E of Chase, Alaska · 134.1 kmM 2.6 · 48 km SSE of Nelchina, Alaska · 48.0 kmM 2.4 · 39 km N of Valdez, Alaska · 51.0 kmM 3.0 · 21 km SSW of Trapper Creek, Alaska · 174.6 kmM 2.5 · 18 km SSE of Skwentna, Alaska · 210.8 kmM 2.1 · 34 km NNW of Chickaloon, Alaska · 81.8 kmM 2.5 · 28 km SSE of Nelchina, Alaska · 34.2 kmM 3.6 · 2 km NW of Knik, Alaska · 139.9 kmM 2.3 · 65 km NNE of Petersville, Alaska · 219.1 kmM 2.0 · 31 km WNW of Willow, Alaska · 176.4 kmM 2.8 · 24 km N of Sutton-Alpine, Alaska · 88.3 kmM 1.9 · 39 km WNW of Petersville, Alaska · 240.0 kmM 2.5 · 19 km ENE of Girdwood, Alaska · 123.0 kmM 2.3 · 10 km NE of Moose Pass, Alaska · 175.6 kmM 1.9 · 1 km N of Houston, Alaska · 138.6 kmM 2.1 · 5 km NNW of Tanaina, Alaska · 120.9 kmM 3.1 · 5 km N of Nikiski, Alaska · 246.5 kmM 2.9 · 72 km SSE of Cantwell, Alaska · 127.3 kmM 2.1 · 53 km SE of Denali National Park, Alaska · 248.5 kmM 1.2 · 54 km NW of Tatitlek, Alaska · 70.7 kmM 1.3 · 37 km NNE of Chickaloon, Alaska · 63.4 kmM 2.4 · 6 km NNE of Tanaina, Alaska · 115.2 kmM 2.5 · 59 km NNW of Petersville, Alaska · 240.1 kmM 2.1 · 29 km SSE of Chickaloon, Alaska · 66.5 kmM 1.8 · 44 km SSE of Glacier View, Alaska · 43.5 kmM 1.4 · 41 km NNW of Petersville, Alaska · 235.5 kmM 2.2 · 49 km N of Valdez, Alaska · 55.0 kmM 1.5 · 13 km SSE of Trapper Creek, Alaska · 161.6 kmM 2.9 · 14 km ENE of Glacier View, Alaska · 15.4 kmM 1.8 · 100 km E of Cordova, Alaska · 222.1 kmM 1.5 · 41 km W of Susitna, Alaska · 215.9 kmM 1.3 · 3 km NE of Susitna North, Alaska · 142.6 kmM 1.5 · 22 km SE of Skwentna, Alaska · 205.1 kmM 1.2 · 8 km SW of Big Lake, Alaska · 155.3 kmM 1.7 · 12 km WNW of Fishhook, Alaska · 117.8 km
M 1.6 · 17 km S of Eureka Roadhouse, 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.

Revisions2
Magnitude change+0.2M 1.4 → M 1.6
Depth change-2.3 km
Last update1344 min
2026-10-18 16:59:30 UTC2026-10-18 17:00:29 UTC

Revision history

Observed changes stored by Quake Pulse.

Mise à jourMagnitudeDepthStatus
2026-10-18 16:59:30 UTC1.440 kmautomatic
2026-10-18 17:00:29 UTC1.637.7 kmautomatic

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Putting this earthquake in context

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Interpret the numbers

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Important limits

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