Alaska earthquakes

M3.8 earthquake 88 km S of Akhiok, Alaska

A magnitude 3.8 earthquake struck 88 km S of Akhiok, Alaska on Thu, Feb 2, 2017, 4:21 AM AKST (13:21 UTC), 28 km (17 mi) below the surface.

A larger quake followed: M4.4 7 km N of Akhiok, Alaska. This one was a foreshock.

Womens Bay forecastMore in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.8 (ML, local (Richter)), minor
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-02-02 13:21:44 UTC
Depth
27.6 km (17.1 mi), shallow
Epicenter
56.154° N, 154.287° W
Region
Alaska
Strongest shaking
III, weak shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
3.8ML, local (Richter)Alaska Earthquake CenterPreferred · Preliminary
4.4mb, body-waveUSGS National Earthquake Information CenterReviewed · ±0.189 · 8 stations

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
III, weak shaking
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

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
77

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 1.844 km WSW of Akhiok, Alaska · 3529 days ago · 47 km deep · 78 km away
  2. 1.963 km SSW of Akhiok, Alaska · 3527 days ago · 26 km deep · 30 km away
  3. 2.255 km WSW of Akhiok, Alaska · 3525 days ago · 20 km deep · 82 km away
  4. 3.028 km W of Akhiok, Alaska · 3515 days ago · 6 km deep · 90 km away
  5. 1.658 km W of Akhiok, Alaska · 3515 days ago · 24 km deep · 92 km away
  6. 2.268 km WSW of Akhiok, Alaska · 3512 days ago · 50 km deep · 86 km away
  7. 2.2115 km SSE of Akhiok, Alaska · 3510 days ago · 28 km deep · 62 km away
  8. 2.160 km SW of Akhiok, Alaska · 3506 days ago · 57 km deep · 61 km away
  9. 2.4103 km WSW of Akhiok, Alaska · 3504 days ago · 52 km deep · 100 km away
  10. 2.8123 km SSE of Akhiok, Alaska · 3496 days ago · 12 km deep · 74 km away
  11. 2.9122 km SSE of Akhiok, Alaska · 3490 days ago · 8 km deep · 72 km away
  12. 4.47 km N of Akhiok, Alaska · 3489 days ago · 43 km deep · 96 km away · tsunami flag
  13. 1.96 km NW of Akhiok, Alaska · 3485 days ago · 56 km deep · 93 km away
  14. 1.97 km NNE of Akhiok, Alaska · 3484 days ago · 53 km deep · 96 km away
  15. 1.754 km WSW of Akhiok, Alaska · 3481 days ago · 26 km deep · 73 km away

Before

  1. 2.489 km S of Akhiok, Alaska · 3531 days ago · 29 km deep · 1 km away
  2. 2.4107 km SW of Akhiok, Alaska · 3533 days ago · 69 km deep · 82 km away
  3. 2.072 km SW of Akhiok, Alaska · 3535 days ago · 12 km deep · 55 km away
  4. 2.527 km WNW of Akhiok, Alaska · 3542 days ago · 17 km deep · 99 km away · felt by 1
  5. 2.089 km WSW of Akhiok, Alaska · 3545 days ago · 54 km deep · 90 km away
  6. 2.047 km SW of Akhiok, Alaska · 3546 days ago · 62 km deep · 57 km away
  7. 3.1109 km SSE of Akhiok, Alaska · 3548 days ago · 20 km deep · 40 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0171isloli (also filed as ak15190765, us20008fwc). Read Sun, Oct 4, 2026, 3:11 PM UTC.