6 Oct 2026, 14:22 UTC · Oct 6, 10:22 AM ET

M3.9 earthquake 209 km SSE of Atka, Alaska

A magnitude 3.9 earthquake struck 209 km SSE of Atka, Alaska at Oct 6, 10:22 AM ET, 10 km deep, minor – felt by people near the epicenter.

under 33–44–55–66+

Magnitude	3.9 mb
Time	6 Oct 2026, 14:22 UTC
Location	50.524°, -172.833° – 209 km SSE of Atka, Alaska
Depth	10.0 km
Felt reports	0
Max. estimated intensity (MMI)	1.2
USGS event	us6000u0jh

Within 100 km

Other earthquakes nearby this year

Mag.	Where	When (ET)	Depth	Felt
4.6	188 km SSE of Atka, Alaska	Apr 12, 4:41 PM 187 d ago	10 km	–
3.9	120 km SE of Atka, Alaska	Jul 27, 6:12 AM 81 d ago	10 km	–
3.8	187 km SSE of Atka, Alaska	Mar 20, 2:46 AM 211 d ago	11 km	–
3.8	175 km SSE of Atka, Alaska	Nov 22, 9:13 AM 328 d ago	10 km	–
3.8	176 km SSE of Atka, Alaska	Oct 18, 10:08 AM 363 d ago	10 km	–
3.7	228 km SE of Atka, Alaska	Feb 22, 1:31 PM 236 d ago	20 km	–
3.7	148 km SE of Atka, Alaska	Feb 10, 8:18 AM 248 d ago	10 km	–
3.7	195 km SE of Atka, Alaska	Nov 16, 11:01 PM 334 d ago	10 km	–
3.4	159 km SE of Atka, Alaska	Jul 3, 5:58 PM 105 d ago	10 km	–
3.4	141 km SSE of Atka, Alaska	Mar 12, 5:41 AM 218 d ago	20 km	–
3.3	164 km SSE of Atka, Alaska	Jul 12, 7:43 PM 96 d ago	41 km	–
3.3	201 km SSE of Atka, Alaska	May 7, 9:33 AM 162 d ago	10 km	–

FAQ

About this earthquake

How strong was the 209 km SSE of Atka, Alaska earthquake?

Magnitude 3.9 (mb), minor – felt by people near the epicenter. Depth 10 km. Strongest estimated shaking: intensity 1.2 on the Modified Mercalli scale.

Was it felt?

No felt reports have been submitted to the USGS so far.

Were there aftershocks?

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

Earthquakes

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.