31 Mar 2026, 18:43 UTC · Mar 31, 2:43 PM ET

M3.4 earthquake Rat Islands, Aleutian Islands, Alaska

A magnitude 3.4 earthquake struck Rat Islands, Aleutian Islands, Alaska at Mar 31, 2:43 PM ET, 10 km deep, minor – felt by people near the epicenter.

under 33–44–55–66+

Magnitude	3.4 mb
Time	31 Mar 2026, 18:43 UTC
Location	50.026°, 176.361° – Rat Islands, Aleutian Islands, Alaska
Depth	10.0 km
Felt reports	0
Max. estimated intensity (MMI)	1.0
USGS event	us6000sny8

Within 100 km

Other earthquakes nearby this year

Mag.	Where	When (ET)	Depth	Felt
4.0	287 km SE of Attu Station, Alaska	Apr 3, 5:21 AM 196 d ago	21 km	–
4.0	Rat Islands, Aleutian Islands, Alaska	Jan 11, 10:04 PM 278 d ago	10 km	1 report
3.9	288 km SE of Attu Station, Alaska	Feb 19, 10:41 PM 239 d ago	10 km	–
3.6	Rat Islands, Aleutian Islands, Alaska	Aug 10, 2:09 PM 67 d ago	10 km	1 report
3.6	Rat Islands, Aleutian Islands, Alaska	Apr 2, 3:41 PM 197 d ago	21 km	–
3.1	Rat Islands, Aleutian Islands, Alaska	Mar 15, 4:37 AM 216 d ago	10 km	–
3.0	Rat Islands, Aleutian Islands, Alaska	Aug 11, 3:08 AM 67 d ago	10 km	–
2.8	Rat Islands, Aleutian Islands, Alaska	Sep 12, 11:08 AM 34 d ago	10 km	–
2.6	Rat Islands, Aleutian Islands, Alaska	Jul 29, 4:04 PM 79 d ago	10 km	–

FAQ

About this earthquake

How strong was the Rat Islands, Aleutian Islands, Alaska earthquake?

Magnitude 3.4 (mb), minor – felt by people near the epicenter. Depth 10 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?

2 earthquakes within 100 km in the following two weeks are in our records, the strongest M4.0.

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.