22 May 2026, 20:15 UTC · May 22, 4:15 PM ET

M3.9 earthquake 170 km E of Atka, Alaska

A magnitude 3.9 earthquake struck 170 km E of Atka, Alaska at May 22, 4:15 PM ET, 8 km deep, minor – felt by people near the epicenter.

under 33–44–55–66+

Magnitude	3.9 mb
Time	22 May 2026, 20:15 UTC
Location	52.389°, -171.726° – 170 km E of Atka, Alaska
Depth	7.7 km
Felt reports	0
Max. estimated intensity (MMI)	2.6
USGS event	us6000szl8

Within 100 km

Other earthquakes nearby this year

Mag.	Where	When (ET)	Depth	Felt
6.5	177 km W of Nikolski, Alaska · tsunami flag · PAGER green	Sep 17, 10:19 AM 29 d ago	98 km	8 reports
5.6	172 km ENE of Atka, Alaska · PAGER green	May 22, 8:16 AM 147 d ago	15 km	–
4.9	168 km E of Atka, Alaska · PAGER green	May 18, 5:37 PM 151 d ago	10 km	–
4.8	174 km SW of Nikolski, Alaska	May 25, 1:18 AM 145 d ago	21 km	–
4.7	172 km E of Atka, Alaska	Apr 10, 8:39 PM 189 d ago	63 km	–
4.7	189 km WSW of Nikolski, Alaska · tsunami flag	Nov 9, 4:36 AM 341 d ago	54 km	–
4.4	171 km E of Atka, Alaska	May 22, 4:10 PM 147 d ago	21 km	–
4.4	167 km E of Atka, Alaska	May 22, 8:46 AM 147 d ago	10 km	–
4.4	93 km ENE of Atka, Alaska	Feb 24, 10:34 PM 234 d ago	157 km	2 reports
4.4	121 km E of Atka, Alaska	Nov 30, 7:24 AM 320 d ago	73 km	–
4.3	185 km E of Atka, Alaska	Nov 9, 9:20 AM 341 d ago	50 km	–
4.2	197 km SW of Nikolski, Alaska	Feb 9, 12:37 AM 250 d ago	21 km	–

FAQ

About this earthquake

How strong was the 170 km E of Atka, Alaska earthquake?

Magnitude 3.9 (mb), minor – felt by people near the epicenter. Depth 8 km. Strongest estimated shaking: intensity 2.6 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 M4.8.

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.