M1.6 earthquake 10 km W of Salcha, Alaska
A magnitude 1.6 earthquake struck 10 km W of Salcha, Alaska on Wed, Oct 20, 2021, 10:56 PM AKDT (06:56 UTC), 0 km (0 mi) below the surface.
Automatic solution: the magnitude and location may still be revised.
A larger quake followed: M4.1 31 km SW of Salcha, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (ml), micro
- Local time
- UTC
- 2021-10-21 06:56:32 UTC
- Depth
- 0.0 km (0.0 mi), shallow
- Epicenter
- 64.540° N, 147.115° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Automatic solution, may be revised
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
An automatic solution; a seismologist may revise it.
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 9 in the 30 days before it.
After
- 1.631 km SE of Minto, Alaska · 1800 days ago · 17 km deep · 96 km away
- 2.6Central Alaska · 1799 days ago · 8 km deep · 22 km away
- 1.543 km SW of Salcha, Alaska · 1797 days ago · 10 km deep · 40 km away
- 3.38 km NW of Harding-Birch Lakes, Alaska · 1797 days ago · 8 km deep · 23 km away · felt by 11
- 1.814 km WSW of Salcha, Alaska · 1796 days ago · 8 km deep · 6 km away
- 1.78 km NW of Harding-Birch Lakes, Alaska · 1794 days ago · 5 km deep · 23 km away
- 1.522 km NNE of Four Mile Road, Alaska · 1791 days ago · 18 km deep · 95 km away
- 2.210 km NW of Harding-Birch Lakes, Alaska · 1785 days ago · 11 km deep · 21 km away · felt by 1
- 3.132 km WSW of Salcha, Alaska · 1785 days ago · 8 km deep · 25 km away · felt by 46
- 4.131 km SW of Salcha, Alaska · 1785 days ago · 8 km deep · 25 km away · felt by 179
- 1.528 km WSW of Salcha, Alaska · 1785 days ago · 2 km deep · 20 km away
- 1.928 km WSW of Salcha, Alaska · 1784 days ago · 11 km deep · 21 km away
- 1.58 km NW of Harding-Birch Lakes, Alaska · 1784 days ago · 4 km deep · 23 km away
- 2.241 km SSW of South Van Horn, Alaska · 1782 days ago · 7 km deep · 44 km away
- 1.830 km WSW of Salcha, Alaska · 1782 days ago · 6 km deep · 23 km away
- 1.528 km WSW of Salcha, Alaska · 1780 days ago · 15 km deep · 20 km away
- 2.420 km N of Pleasant Valley, Alaska · 1776 days ago · 16 km deep · 60 km away
- 2.531 km SSE of Minto, Alaska · 1770 days ago · 21 km deep · 100 km away
- 1.622 km ENE of Four Mile Road, Alaska · 1768 days ago · 17 km deep · 77 km away
- 2.15 km ENE of Badger, Alaska · 1767 days ago · 17 km deep · 35 km away
- 1.534 km E of Clear, Alaska, Alaska · 1766 days ago · 4 km deep · 71 km away
- 1.78 km NW of Harding-Birch Lakes, Alaska · 1762 days ago · 5 km deep · 23 km away
- 1.54 km NNE of Fox, Alaska · 1759 days ago · 17 km deep · 56 km away
- 1.729 km WSW of Salcha, Alaska · 1756 days ago · 7 km deep · 22 km away
- 1.529 km WSW of Salcha, Alaska · 1754 days ago · 5 km deep · 22 km away
- 2.39 km NW of Harding-Birch Lakes, Alaska · 1749 days ago · 7 km deep · 21 km away · felt by 1
- 2.79 km NW of Harding-Birch Lakes, Alaska · 1745 days ago · 8 km deep · 22 km away · felt by 1
Before
- 1.57 km NNW of Harding-Birch Lakes, Alaska · 1801 days ago · 4 km deep · 24 km away
- 2.014 km SW of North Pole, Alaska · 1812 days ago · 7 km deep · 25 km away · felt by 1
- 1.523 km WSW of Ester, Alaska · 1812 days ago · 8 km deep · 68 km away
- 2.114 km SW of North Pole, Alaska · 1816 days ago · 12 km deep · 25 km away · felt by 2
- 1.93 km SSE of Badger, Alaska · 1820 days ago · 13 km deep · 31 km away
- 1.965 km WSW of Delta Junction, Alaska · 1823 days ago · 0 km deep · 88 km away
- 1.826 km N of Four Mile Road, Alaska · 1823 days ago · 16 km deep · 96 km away
- 1.719 km N of Four Mile Road, Alaska · 1825 days ago · 22 km deep · 96 km away
- 2.08 km NW of Harding-Birch Lakes, Alaska · 1828 days ago · 10 km deep · 23 km away
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak021dibwpf1. Read Fri, Sep 25, 2026, 11:59 AM UTC.