Earthquake · Reviewed by USGS

M4.6 earthquake Rat Islands, Aleutian Islands, Alaska

A magnitude 4.6 earthquake struck Rat Islands, Aleutian Islands, Alaska at Sep 27, 2026, 07:48 UTC, at a depth of 43 km.

Details

Magnitude	4.6 mb
Time	Sep 27, 2026, 07:48 UTC
Depth	42.7 km
Coordinates	50.888, 179.352
Felt reports	0
Tsunami flag	None
Source	USGS event page

Fig. 1The epicentre and other earthquakes within 100 km, since the day before

01 — Around it

Other earthquakes within 100 km

Other earthquakes within 100 km since the day before this event
Magnitude	Location	Distance	Depth	Time
2.4	Rat Islands, Aleutian Islands, Alaska	68 km / 42 mi	depth 51 km	Oct 21, 02:59 UTC
4.2	Rat Islands, Aleutian Islands, Alaska	98 km / 61 mi	depth 52 km	Oct 19, 16:27 UTC
1.7	267 km W of Adak, Alaska	87 km / 54 mi	depth 82 km	Oct 18, 11:27 UTC
2.2	Rat Islands, Aleutian Islands, Alaska	94 km / 59 mi	depth 90 km	Oct 18, 04:55 UTC
2.5	Rat Islands, Aleutian Islands, Alaska	66 km / 41 mi	depth 56 km	Oct 16, 02:08 UTC
3.1	Rat Islands, Aleutian Islands, Alaska	84 km / 52 mi	depth 2 km	Oct 15, 10:39 UTC
2.6	294 km W of Adak, Alaska	63 km / 39 mi	depth 68 km	Oct 15, 03:21 UTC
3.4	Rat Islands, Aleutian Islands, Alaska	72 km / 45 mi	depth 27 km	Oct 12, 22:26 UTC
2.8	Rat Islands, Aleutian Islands, Alaska	56 km / 35 mi	depth 35 km	Oct 12, 15:55 UTC
3.0	Rat Islands, Aleutian Islands, Alaska	93 km / 58 mi	depth 10 km	Oct 12, 10:36 UTC
2.9	242 km WSW of Adak, Alaska	61 km / 38 mi	depth 6 km	Oct 12, 06:36 UTC
4.4	275 km W of Adak, Alaska	94 km / 58 mi	depth 95 km	Oct 11, 12:16 UTC
4.0	Rat Islands, Aleutian Islands, Alaska	86 km / 54 mi	depth 108 km	Oct 7, 08:47 UTC
2.7	235 km W of Adak, Alaska	86 km / 54 mi	depth 19 km	Oct 5, 05:34 UTC
2.9	272 km W of Adak, Alaska	80 km / 49 mi	depth 85 km	Oct 1, 00:36 UTC
3.1	227 km W of Adak, Alaska	98 km / 61 mi	depth 99 km	Sep 30, 19:51 UTC
2.6	Rat Islands, Aleutian Islands, Alaska	97 km / 60 mi	depth 57 km	Sep 30, 02:51 UTC
2.1	290 km W of Adak, Alaska	69 km / 43 mi	depth 17 km	Sep 29, 18:01 UTC
2.6	227 km WSW of Adak, Alaska	85 km / 53 mi	depth 68 km	Sep 29, 16:17 UTC
2.5	Rat Islands, Aleutian Islands, Alaska	38 km / 24 mi	depth 31 km	Sep 29, 07:06 UTC
2.7	Rat Islands, Aleutian Islands, Alaska	88 km / 55 mi	depth 81 km	Sep 29, 01:28 UTC
3.0	Rat Islands, Aleutian Islands, Alaska	71 km / 44 mi	depth 35 km	Sep 28, 22:29 UTC
2.5	292 km WSW of Adak, Alaska	23 km / 15 mi	depth 30 km	Sep 28, 16:59 UTC
2.6	285 km WSW of Adak, Alaska	15 km / 9 mi	depth 17 km	Sep 28, 12:35 UTC
2.9	266 km WSW of Adak, Alaska	35 km / 22 mi	depth 12 km	Sep 27, 15:49 UTC

USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.