M1.8 earthquake Southern Alaska
A magnitude 1.8 earthquake struck in Southern Alaska on Thu, Sep 23, 2021, 11:39 AM AKDT (19:39 UTC), 4 km (2 mi) below the surface.
A larger quake followed: M3.6 52 km SSW of Alcan Border, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.8 (ml), micro
- Local time
- UTC
- 2021-09-23 19:39:52 UTC
- Depth
- 3.5 km (2.2 mi), shallow
- Epicenter
- 61.430° N, 141.024° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Stations used
- 34
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 29 in the 60 days after this one and 9 in the 30 days before it.
After
- 1.5128 km E of McCarthy, Alaska · 1828 days ago · 0 km deep · 27 km away
- 2.224 km NE of McCarthy, Alaska · 1824 days ago · 7 km deep · 86 km away
- 1.730 km NE of McCarthy, Alaska · 1824 days ago · 3 km deep · 80 km away
- 2.356 km SSW of Alcan Border, Alaska · 1820 days ago · 4 km deep · 91 km away
- 3.652 km SSW of Alcan Border, Alaska · 1820 days ago · 9 km deep · 94 km away · felt by 1
- 2.254 km SSW of Alcan Border, Alaska · 1820 days ago · 11 km deep · 92 km away
- 1.957 km SSW of Alcan Border, Alaska · 1820 days ago · 5 km deep · 91 km away
- 2.155 km SSW of Alcan Border, Alaska · 1820 days ago · 9 km deep · 92 km away
- 1.6119 km E of McCarthy, Alaska · 1819 days ago · 0 km deep · 21 km away
- 1.525 km NE of McCarthy, Alaska · 1818 days ago · 10 km deep · 85 km away
- 1.885 km E of McCarthy, Alaska · 1815 days ago · 4 km deep · 17 km away
- 1.8121 km WNW of Haines Junction, Canada · 1815 days ago · 8 km deep · 83 km away
- 2.0125 km E of McCarthy, Alaska · 1815 days ago · 1 km deep · 25 km away
- 1.990 km E of McCarthy, Alaska · 1812 days ago · 3 km deep · 16 km away
- 1.689 km E of McCarthy, Alaska · 1812 days ago · 4 km deep · 17 km away
- 1.6150 km WNW of Haines Junction, Canada · 1806 days ago · 10 km deep · 57 km away
- 1.537 km NE of McCarthy, Alaska · 1801 days ago · 6 km deep · 86 km away
- 1.5134 km SE of McCarthy, Alaska · 1801 days ago · 11 km deep · 98 km away
- 2.2152 km WNW of Haines Junction, Canada · 1799 days ago · 13 km deep · 53 km away
- 1.667 km SSW of Alcan Border, Alaska · 1795 days ago · 6 km deep · 81 km away
- 2.5Southern Yukon Territory, Canada · 1793 days ago · 5 km deep · 47 km away
- 1.857 km SSW of Alcan Border, Alaska · 1792 days ago · 3 km deep · 91 km away
- 1.6138 km ESE of McCarthy, Alaska · 1791 days ago · 6 km deep · 46 km away
- 1.8139 km ESE of McCarthy, Alaska · 1787 days ago · 22 km deep · 46 km away
- 1.8139 km ESE of McCarthy, Alaska · 1787 days ago · 20 km deep · 46 km away
- 2.0110 km SE of McCarthy, Alaska · 1785 days ago · 8 km deep · 97 km away
- 1.6121 km WNW of Haines Junction, Canada · 1777 days ago · 12 km deep · 83 km away
- 2.1149 km E of McCarthy, Alaska · 1773 days ago · 4 km deep · 48 km away
- 1.7140 km NNW of Yakutat, Alaska · 1772 days ago · 3 km deep · 81 km away
Before
- 1.5145 km NNW of Yakutat, Alaska · 1834 days ago · 7 km deep · 77 km away
- 1.6102 km E of McCarthy, Alaska · 1835 days ago · 7 km deep · 16 km away
- 1.9120 km WNW of Haines Junction, Canada · 1842 days ago · 7 km deep · 84 km away
- 1.6118 km E of McCarthy, Alaska · 1842 days ago · 9 km deep · 17 km away
- 1.691 km E of McCarthy, Alaska · 1844 days ago · 9 km deep · 17 km away
- 1.986 km S of Alcan Border, Alaska · 1845 days ago · 3 km deep · 54 km away
- 1.690 km E of McCarthy, Alaska · 1847 days ago · 5 km deep · 18 km away
- 1.8108 km E of McCarthy, Alaska · 1854 days ago · 9 km deep · 21 km away
- 1.688 km E of McCarthy, Alaska · 1859 days ago · 1 km deep · 19 km away
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak021c88i0tm. Read Tue, Sep 29, 2026, 10:48 AM UTC.