17 Aug 2026, 20:35 UTC · Aug 17, 4:35 PM ET

M4.5 earthquake 41 km SW of Karluk, Alaska

A magnitude 4.5 earthquake struck 41 km SW of Karluk, Alaska at Aug 17, 4:35 PM ET, 58 km deep, light – felt by most people nearby, rattling windows, rarely damage. 6 people reported feeling it.

M3.5 13 km WNW of Larsen Bay, AlaskaM3.5 77 km WSW of Karluk, AlaskaM3.5 56 km W of Karluk, AlaskaM3.6 76 km W of Akhiok, AlaskaM3.6 23 km NW of Old Harbor, AlaskaM3.7 37 km SW of Karluk, AlaskaM3.7 32 km SSW of Karluk, AlaskaM3.9 70 km SE of Ugashik, AlaskaM4.0 84 km W of Akhiok, AlaskaM4.0 18 km N of Larsen Bay, AlaskaM4.2 10 km N of Old Harbor, AlaskaM4.5 41 km SW of Karluk, AlaskaM4.6 57 km W of Karluk, Alaska
under 33–44–55–66+
Magnitude4.5 ml
Time17 Aug 2026, 20:35 UTC
Location57.279°, -154.894° – 41 km SW of Karluk, Alaska
Depth57.9 km
Felt reports6
Max. estimated intensity (MMI)3.7
USGS eventaka2026qgsene
Within 100 km

Other earthquakes nearby this year

Mag.WhereWhen (ET)DepthFelt
4.657 km W of Karluk, AlaskaOct 2, 3:13 AM
380 d ago
4 km2 reports
4.210 km N of Old Harbor, AlaskaApr 23, 3:12 AM
177 d ago
41 km38 reports
4.084 km W of Akhiok, AlaskaApr 3, 10:27 PM
196 d ago
20 km–
4.018 km N of Larsen Bay, AlaskaMar 24, 1:36 AM
207 d ago
29 km3 reports
3.970 km SE of Ugashik, AlaskaApr 18, 2:53 PM
181 d ago
80 km–
3.737 km SW of Karluk, AlaskaSep 22, 4:48 AM
24 d ago
51 km1 report
3.732 km SSW of Karluk, AlaskaApr 8, 9:16 PM
191 d ago
20 km–
3.676 km W of Akhiok, AlaskaJul 14, 3:51 AM
95 d ago
20 km–
3.623 km NW of Old Harbor, AlaskaOct 29, 3:12 PM
352 d ago
29 km–
3.513 km WNW of Larsen Bay, AlaskaMar 13, 7:00 AM
217 d ago
47 km1 report
3.577 km WSW of Karluk, AlaskaJan 19, 8:41 AM
270 d ago
58 km–
3.556 km W of Karluk, AlaskaOct 21, 7:46 PM
360 d ago
0 km–
FAQ

About this earthquake

How strong was the 41 km SW of Karluk, Alaska earthquake?

Magnitude 4.5 (ml), light – felt by most people nearby, rattling windows, rarely damage. Depth 58 km. Strongest estimated shaking: intensity 3.7 on the Modified Mercalli scale.

Was it felt?

6 people reported feeling it to the USGS "Did You Feel It?" survey; the highest reported intensity was 3.1.

Were there aftershocks?

No earthquakes within 100 km have followed so far in our records.

Earthquakes

More

Source: U.S. Geological Survey (USGS) earthquake catalog, real-time feeds and FDSN event service; magnitudes and locations are revised by seismologists for hours after an event. Times are Eastern (ET) unless marked UTC. Not an alert service: for warnings follow local authorities and tsunami centers.

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M4.5 earthquake 41 km SW of Karluk, Alaska — 77.today