M1.8 earthquake Southern Alaska
A magnitude 1.8 earthquake struck in Southern Alaska on Fri, Dec 31, 2021, 4:59 AM AKST (13:59 UTC), 112 km (70 mi) below the surface.
A larger quake followed: M5.1 48 km NW of Ninilchik, 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
- 2021-12-31 13:59:59 UTC
- Depth
- 112.0 km (69.6 mi), intermediate-depth
- Epicenter
- 60.532° N, 152.541° 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
- 51
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and at least 200 in the 30 days before it.
After
- 2.053 km WNW of Happy Valley, Alaska · 1734 days ago · 94 km deep · 55 km away
- 1.732 km E of Pedro Bay, Alaska · 1734 days ago · 136 km deep · 98 km away
- 1.931 km W of Salamatof, Alaska · 1734 days ago · 79 km deep · 37 km away
- 2.243 km ENE of Pedro Bay, Alaska · 1734 days ago · 136 km deep · 83 km away
- 2.530 km E of Pedro Bay, Alaska · 1734 days ago · 129 km deep · 98 km away
- 2.02 km NE of Tyonek, Alaska · 1734 days ago · 64 km deep · 99 km away
- 1.933 km E of Pedro Bay, Alaska · 1734 days ago · 126 km deep · 96 km away
- 1.666 km W of Nikiski, Alaska · 1733 days ago · 109 km deep · 26 km away
- 1.536 km WNW of Tyonek, Alaska · 1733 days ago · 78 km deep · 86 km away
- 1.944 km W of Anchor Point, Alaska · 1733 days ago · 84 km deep · 79 km away
- 2.156 km NE of Pedro Bay, Alaska · 1733 days ago · 124 km deep · 65 km away
- 1.943 km W of Happy Valley, Alaska · 1733 days ago · 80 km deep · 59 km away
- 1.848 km WNW of Clam Gulch, Alaska · 1733 days ago · 84 km deep · 24 km away
- 2.663 km NW of Ninilchik, Alaska · 1732 days ago · 105 km deep · 9 km away · felt by 1
- 1.866 km ENE of Pedro Bay, Alaska · 1732 days ago · 118 km deep · 62 km away
- 1.841 km WNW of Nikiski, Alaska · 1732 days ago · 86 km deep · 51 km away
- 2.449 km E of Port Alsworth, Alaska · 1732 days ago · 151 km deep · 65 km away
- 1.837 km WNW of Anchor Point, Alaska · 1732 days ago · 86 km deep · 69 km away
- 1.740 km W of Tyonek, Alaska · 1732 days ago · 84 km deep · 68 km away
- 1.760 km WNW of Nikiski, Alaska · 1732 days ago · 99 km deep · 36 km away
- 2.134 km ENE of Pedro Bay, Alaska · 1732 days ago · 137 km deep · 88 km away
- 1.710 km NNW of Anchor Point, Alaska · 1732 days ago · 63 km deep · 82 km away
- 1.929 km W of Salamatof, Alaska · 1732 days ago · 78 km deep · 39 km away
- 1.750 km W of Tyonek, Alaska · 1732 days ago · 102 km deep · 70 km away
- 2.436 km NE of Pedro Bay, Alaska · 1732 days ago · 162 km deep · 84 km away
- 1.626 km WNW of Anchor Point, Alaska · 1731 days ago · 75 km deep · 73 km away
- 1.742 km NW of Ninilchik, Alaska · 1731 days ago · 81 km deep · 30 km away
- 1.527 km WNW of Nikiski, Alaska · 1731 days ago · 85 km deep · 48 km away
- 1.846 km WNW of Happy Valley, Alaska · 1731 days ago · 82 km deep · 54 km away
- 1.973 km WNW of Happy Valley, Alaska · 1731 days ago · 112 km deep · 46 km away
- 1.847 km WNW of Ninilchik, Alaska · 1731 days ago · 83 km deep · 37 km away
- 1.949 km WNW of Ninilchik, Alaska · 1731 days ago · 92 km deep · 41 km away
- 1.858 km WNW of Anchor Point, Alaska · 1731 days ago · 97 km deep · 74 km away
- 1.638 km WSW of Anchor Point, Alaska · 1730 days ago · 79 km deep · 99 km away
- 1.557 km E of Pedro Bay, Alaska · 1730 days ago · 100 km deep · 87 km away
- 2.359 km E of Pedro Bay, Alaska · 1730 days ago · 101 km deep · 84 km away
- 1.6Southern Alaska · 1730 days ago · 102 km deep · 59 km away
- 1.548 km ENE of Pedro Bay, Alaska · 1730 days ago · 120 km deep · 77 km away
- 1.65 km NE of Anchor Point, Alaska · 1730 days ago · 63 km deep · 92 km away
- 1.669 km NW of Ninilchik, Alaska · 1730 days ago · 104 km deep · 6 km away
- 1.657 km E of Pedro Bay, Alaska · 1729 days ago · 103 km deep · 85 km away
- 1.845 km W of Anchor Point, Alaska · 1729 days ago · 85 km deep · 78 km away
- 2.150 km W of Salamatof, Alaska · 1729 days ago · 85 km deep · 26 km away
- 1.748 km W of Anchor Point, Alaska · 1729 days ago · 84 km deep · 82 km away
- 1.766 km WNW of Nikiski, Alaska · 1729 days ago · 115 km deep · 45 km away
- 2.242 km ENE of Pedro Bay, Alaska · 1729 days ago · 133 km deep · 86 km away
- 1.545 km WNW of Beluga, Alaska · 1729 days ago · 86 km deep · 99 km away
- 1.760 km W of Anchor Point, Alaska · 1729 days ago · 99 km deep · 83 km away
- 1.550 km W of Cohoe, Alaska · 1729 days ago · 83 km deep · 21 km away
- 1.765 km WNW of Ninilchik, Alaska · 1729 days ago · 115 km deep · 28 km away
- 1.862 km E of Pedro Bay, Alaska · 1729 days ago · 124 km deep · 76 km away
- 1.857 km E of Port Alsworth, Alaska · 1729 days ago · 142 km deep · 58 km away
- 1.858 km NW of Ninilchik, Alaska · 1728 days ago · 87 km deep · 13 km away
- 1.548 km NW of Ninilchik, Alaska · 1728 days ago · 83 km deep · 24 km away
- 1.948 km E of Port Alsworth, Alaska · 1728 days ago · 159 km deep · 66 km away
- 2.020 km NE of Pedro Bay, Alaska · 1728 days ago · 152 km deep · 100 km away
- 1.515 km SSE of Tyonek, Alaska · 1728 days ago · 63 km deep · 97 km away
- 1.567 km WNW of Beluga, Alaska · 1728 days ago · 116 km deep · 96 km away
- 1.710 km E of Ninilchik, Alaska · 1728 days ago · 64 km deep · 80 km away
- 1.856 km WNW of Anchor Point, Alaska · 1728 days ago · 99 km deep · 62 km away
The first 60 of at least 201.
Before
- 1.841 km ENE of Pedro Bay, Alaska · 1734 days ago · 136 km deep · 88 km away
- 1.761 km WNW of Happy Valley, Alaska · 1734 days ago · 106 km deep · 48 km away
- 1.664 km WNW of Nikiski, Alaska · 1734 days ago · 109 km deep · 49 km away
- 1.562 km WNW of Anchor Point, Alaska · 1734 days ago · 86 km deep · 72 km away
- 2.59 km WNW of Happy Valley, Alaska · 1734 days ago · 79 km deep · 71 km away
- 1.658 km E of Port Alsworth, Alaska · 1735 days ago · 148 km deep · 57 km away
- 1.751 km NE of Pedro Bay, Alaska · 1735 days ago · 140 km deep · 69 km away
- 2.461 km WNW of Happy Valley, Alaska · 1735 days ago · 112 km deep · 47 km away
- 1.756 km E of Pedro Bay, Alaska · 1735 days ago · 122 km deep · 81 km away
- 1.669 km E of Port Alsworth, Alaska · 1735 days ago · 133 km deep · 43 km away
- 1.562 km E of Port Alsworth, Alaska · 1735 days ago · 142 km deep · 53 km away
- 2.128 km WNW of Kalifornsky, Alaska · 1735 days ago · 73 km deep · 41 km away · felt by 1
- 1.5Southern Alaska · 1735 days ago · 114 km deep · 42 km away
- 1.539 km W of Salamatof, Alaska · 1735 days ago · 83 km deep · 28 km away
- 1.658 km ESE of Pedro Bay, Alaska · 1735 days ago · 100 km deep · 100 km away
- 1.520 km WNW of Kalifornsky, Alaska · 1735 days ago · 71 km deep · 49 km away
- 1.648 km E of Pedro Bay, Alaska · 1735 days ago · 107 km deep · 98 km away
- 2.071 km ENE of Port Alsworth, Alaska · 1736 days ago · 136 km deep · 34 km away
- 1.638 km ENE of Pedro Bay, Alaska · 1736 days ago · 127 km deep · 89 km away
- 1.761 km W of Anchor Point, Alaska · 1736 days ago · 102 km deep · 78 km away
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak021grv92yg. Read Wed, Sep 30, 2026, 4:52 PM UTC.