22 Feb 2026, 18:31 UTC · Feb 22, 1:31 PM ET

M3.7 earthquake 228 km SE of Atka, Alaska

A magnitude 3.7 earthquake struck 228 km SE of Atka, Alaska at Feb 22, 1:31 PM ET, 20 km deep, minor – felt by people near the epicenter.

under 33–44–55–66+

Magnitude	3.7 ml
Time	22 Feb 2026, 18:31 UTC
Location	50.899°, -171.645° – 228 km SE of Atka, Alaska
Depth	20.0 km
Felt reports	0
Max. estimated intensity (MMI)	1.0
USGS event	aka2026dswqdm

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	209 km SSE of Atka, Alaska	Oct 6, 10:22 AM 10 d ago	10 km	–
3.8	187 km SSE of Atka, Alaska	Mar 20, 2:46 AM 211 d ago	11 km	–
3.8	176 km SSE of Atka, Alaska	Oct 18, 10:08 AM 363 d ago	10 km	–
3.7	148 km SE of Atka, Alaska	Feb 10, 8:18 AM 248 d ago	10 km	–
3.7	228 km SW of Nikolski, Alaska	Jan 3, 1:42 AM 287 d ago	10 km	–
3.7	195 km SE of Atka, Alaska	Nov 16, 11:01 PM 334 d ago	10 km	–
3.6	210 km SW of Nikolski, Alaska	Aug 8, 2:13 AM 70 d ago	20 km	–
3.5	217 km ESE of Atka, Alaska	Feb 23, 10:52 AM 235 d ago	20 km	–
3.4	159 km SE of Atka, Alaska	Jul 3, 5:58 PM 105 d ago	10 km	–
3.3	137 km SE of Atka, Alaska	Jul 26, 9:27 AM 82 d ago	10 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 228 km SE of Atka, Alaska earthquake?

Magnitude 3.7 (ml), minor – felt by people near the epicenter. Depth 20 km. Strongest estimated shaking: intensity 1.0 on the Modified Mercalli scale.

Was it felt?

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

Were there aftershocks?

1 earthquakes within 100 km in the following two weeks are in our records, the strongest M3.5.

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.