20 Jul 2026, 17:11 UTC · Jul 20, 1:11 PM ET

M3.7 earthquake 65 km WSW of Atka, Alaska

A magnitude 3.7 earthquake struck 65 km WSW of Atka, Alaska at Jul 20, 1:11 PM ET, 8 km deep, minor – felt by people near the epicenter.

under 33–44–55–66+

Magnitude	3.7 mb
Time	20 Jul 2026, 17:11 UTC
Location	51.889°, -175.013° – 65 km WSW of Atka, Alaska
Depth	8.2 km
Felt reports	0
Max. estimated intensity (MMI)	2.3
USGS event	us7000t22h

Within 100 km

Other earthquakes nearby this year

Mag.	Where	When (ET)	Depth	Felt
5.3	39 km E of Adak, Alaska · tsunami flag	Jan 24, 4:25 PM 265 d ago	61 km	3 reports
5.1	40 km E of Adak, Alaska	Feb 1, 7:43 AM 257 d ago	62 km	1 report
5.0	89 km SSW of Atka, Alaska	Feb 27, 12:17 AM 232 d ago	34 km	–
5.0	74 km NE of Adak, Alaska	Feb 10, 6:09 PM 248 d ago	157 km	1 report
4.9	43 km E of Adak, Alaska	May 27, 8:25 PM 142 d ago	64 km	1 report
4.9	47 km SE of Adak, Alaska	Oct 25, 6:13 AM 356 d ago	57 km	1 report
4.8	118 km SSW of Atka, Alaska	Dec 24, 5:56 AM 296 d ago	10 km	–
4.5	86 km S of Atka, Alaska	Sep 25, 7:40 AM 386 d ago	16 km	–
4.4	100 km SW of Atka, Alaska	Oct 8, 3:38 PM 373 d ago	35 km	–
4.1	93 km SW of Atka, Alaska	Oct 3, 12:06 PM 13 d ago	50 km	–
4.1	34 km ESE of Atka, Alaska	Feb 24, 2:06 PM 234 d ago	66 km	–
4.0	63 km ENE of Adak, Alaska	Apr 6, 8:55 PM 193 d ago	153 km	–

FAQ

About this earthquake

How strong was the 65 km WSW of Atka, Alaska earthquake?

Magnitude 3.7 (mb), minor – felt by people near the epicenter. Depth 8 km. Strongest estimated shaking: intensity 2.3 on the Modified Mercalli scale.

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.