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Earthquake · Reviewed by USGS

M3.8 earthquake 86 km SSW of Unalaska, Alaska

A magnitude 3.8 earthquake struck 86 km SSW of Unalaska, Alaska at Oct 18, 2026, 08:02 UTC, at a depth of 40 km.

Details

Magnitude3.8 mb
TimeOct 18, 2026, 08:02 UTC
Depth39.8 km
Coordinates53.151, -167.005
Felt reports0
Tsunami flagNone
SourceUSGS event page
Fig. 1The epicentre and other earthquakes within 100 km, since the day before

01 — Around it

Other earthquakes within 100 km

Other earthquakes within 100 km since the day before this event
MagnitudeLocationDistanceDepthTime
1.365 km NE of Nikolski, Alaska81 km / 50 midepth 8 km
1.622 km WSW of Dutch Harbor, Alaska77 km / 48 midepth 7 km
1.422 km WSW of Dutch Harbor, Alaska77 km / 48 midepth 7 km
1.822 km WSW of Dutch Harbor, Alaska77 km / 48 midepth 7 km
1.222 km WSW of Dutch Harbor, Alaska77 km / 48 midepth 8 km
2.5139 km S of Unalaska, Alaska67 km / 42 midepth 3 km
2.594 km SE of Unalaska, Alaska97 km / 60 midepth 18 km
2.298 km SSW of Unalaska, Alaska18 km / 11 midepth 21 km
3.681 km SE of Unalaska, Alaska93 km / 58 midepth 35 km
2.577 km SE of Unalaska, Alaska79 km / 49 midepth 14 km
2.275 km ESE of Nikolski, Alaska74 km / 46 midepth 32 km
1.424 km W of Dutch Harbor, Alaska81 km / 50 midepth 6 km
2.395 km SSW of Unalaska, Alaska13 km / 8 midepth 30 km
2.396 km SSW of Unalaska, Alaska13 km / 8 midepth 28 km
2.395 km SSW of Unalaska, Alaska13 km / 8 midepth 34 km
2.280 km S of Unalaska, Alaska22 km / 14 midepth 36 km
1.69 km WNW of Dutch Harbor, Alaska89 km / 55 midepth 7 km

USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.