17 Oct 2025, 15:48 UTC · Oct 17, 11:48 AM ET · tsunami flag

M5.1 earthquake 49 km S of Akutan, Alaska

A magnitude 5.1 earthquake struck 49 km S of Akutan, Alaska at Oct 17, 11:48 AM ET, 85 km deep, moderate – felt widely, some damage to weak buildings. 20 people reported feeling it.

M3.7 87 km SE of Akutan, AlaskaM3.8 41 km S of Unalaska, AlaskaM3.8 86 km SE of Akutan, AlaskaM3.9 43 km S of Unalaska, AlaskaM4.0 55 km SE of Unalaska, AlaskaM4.2 70 km SSE of Akutan, AlaskaM4.3 70 km SSE of Akutan, AlaskaM4.4 82 km SE of Akutan, AlaskaM4.5 30 km SSW of Unalaska, AlaskaM4.7 78 km SSE of Akutan, AlaskaM5.0 83 km SSW of Unalaska, AlaskaM5.1 49 km S of Akutan, AlaskaM5.5 88 km SE of Akutan, Alaska
under 33–44–55–66+
Magnitude5.1 mww
Time17 Oct 2025, 15:48 UTC
Location53.688°, -165.843° – 49 km S of Akutan, Alaska
Depth85.1 km
Felt reports20
Max. estimated intensity (MMI)3.4
USGS eventus6000rhss
Within 100 km

Other earthquakes nearby this year

Mag.WhereWhen (ET)DepthFelt
5.588 km SE of Akutan, Alaska · PAGER greenApr 25, 4:05 AM
175 d ago
24 km12 reports
5.083 km SSW of Unalaska, AlaskaJun 13, 6:38 AM
125 d ago
53 km3 reports
4.778 km SSE of Akutan, AlaskaMay 4, 10:38 PM
165 d ago
44 km–
4.530 km SSW of Unalaska, AlaskaJul 12, 7:23 AM
96 d ago
96 km15 reports
4.482 km SE of Akutan, AlaskaApr 26, 12:26 AM
174 d ago
42 km1 report
4.370 km SSE of Akutan, AlaskaAug 20, 9:11 PM
57 d ago
50 km–
4.270 km SSE of Akutan, AlaskaFeb 6, 6:32 PM
252 d ago
43 km–
4.055 km SE of Unalaska, AlaskaJan 18, 9:06 PM
271 d ago
55 km–
3.943 km S of Unalaska, AlaskaJun 11, 12:53 PM
127 d ago
92 km–
3.841 km S of Unalaska, AlaskaJul 14, 10:56 AM
94 d ago
83 km1 report
3.886 km SE of Akutan, AlaskaApr 25, 11:31 PM
174 d ago
35 km–
3.787 km SE of Akutan, AlaskaAug 30, 6:24 PM
47 d ago
24 km–
FAQ

About this earthquake

How strong was the 49 km S of Akutan, Alaska earthquake?

Magnitude 5.1 (mww), moderate – felt widely, some damage to weak buildings. Depth 85 km. Strongest estimated shaking: intensity 3.4 on the Modified Mercalli scale.

Was it felt?

20 people reported feeling it to the USGS "Did You Feel It?" survey; the highest reported intensity was 3.2.

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.

Cookies

We measure traffic so we know which stories you care about. You can change your choice at any time.