27 Mar 2026, 21:15 UTC · Mar 27, 5:15 PM ET

M3.1 earthquake 256 km SSW of Adak, Alaska

A magnitude 3.1 earthquake struck 256 km SSW of Adak, Alaska at Mar 27, 5:15 PM ET, 10 km deep, minor – felt by people near the epicenter.

under 33–44–55–66+

Magnitude	3.1 ml
Time	27 Mar 2026, 21:15 UTC
Location	49.648°, -177.601° – 256 km SSW of Adak, Alaska
Depth	10.0 km
Felt reports	0
USGS event	us7000s897

Within 100 km

Other earthquakes nearby this year

Mag.	Where	When (ET)	Depth	Felt
3.9	265 km SSW of Adak, Alaska	Mar 10, 2:13 AM 221 d ago	10 km	–
3.5	215 km SSW of Adak, Alaska	Jul 3, 11:48 AM 105 d ago	10 km	–
3.2	176 km S of Adak, Alaska	Aug 4, 12:45 PM 73 d ago	10 km	–
3.0	230 km SSW of Adak, Alaska	Sep 8, 2:59 PM 38 d ago	10 km	–
2.9	south of the Aleutian Islands	Sep 12, 2:26 PM 34 d ago	20 km	–
2.9	234 km SW of Adak, Alaska	May 8, 5:50 AM 162 d ago	10 km	–
2.9	191 km S of Adak, Alaska	Apr 21, 3:37 PM 178 d ago	20 km	–
2.9	229 km SW of Adak, Alaska	Mar 10, 1:17 AM 221 d ago	10 km	–
2.8	261 km SSW of Adak, Alaska	Sep 14, 9:27 PM 32 d ago	10 km	–
2.8	244 km SSW of Adak, Alaska	Jun 29, 12:35 AM 110 d ago	10 km	–
2.7	220 km SSW of Adak, Alaska	Dec 18, 9:46 AM 302 d ago	35 km	–
2.6	200 km S of Adak, Alaska	Sep 9, 5:24 AM 38 d ago	29 km	–

FAQ

About this earthquake

How strong was the 256 km SSW of Adak, Alaska earthquake?

Magnitude 3.1 (ml), minor – felt by people near the epicenter. Depth 10 km.

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.