M4.4 earthquake 158 km ESE of Chignik, Alaska
A magnitude 4.4 earthquake struck 158 km ESE of Chignik, Alaska on Mon, Dec 4, 2017, 1:23 AM AKST (10:23 UTC), 56 km (35 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (ML, local (Richter)), light
- Magnitude from
- Alaska Earthquake Center
- Local time
- UTC
- 2017-12-04 10:23:35 UTC
- Depth
- 56.0 km (34.8 mi), shallow
- Epicenter
- 55.831° N, 155.995° W
- Region
- Alaska
- Strongest shaking
- III, weak shaking
- PAGER alert
- Green
- 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. | Scale | Computed by | Notes |
|---|---|---|---|
| 4.4 | ML, local (Richter) | Alaska Earthquake Center | Preferred · Preliminary |
| 4.5 | mb, body-wave | USGS National Earthquake Information Center | Reviewed · ±0.072 · 56 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
Did you feel it?
No one has reported feeling this quake to the USGS.
Estimated impact
The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.
- Alert level
- Green: little or no damage or loss of life expected
| Range | Chance |
|---|---|
| Under 1 | 69% |
| 1 to 10 | 29% |
| 10 to 100 | 2% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
| Range, million USD | Chance |
|---|---|
| Under 1 | 65% |
| 1 to 10 | 30% |
| 10 to 100 | 4% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
How well it is located
Reviewed by a seismologist.
- Stations used
- 211
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 4 in the 30 days before it.
After
- 2.396 km E of Chignik, Alaska · 3221 days ago · 42 km deep · 89 km away
- 2.1101 km SW of Akhiok, Alaska · 3218 days ago · 66 km deep · 73 km away
- 3.6131 km SE of Chignik, Alaska · 3218 days ago · 39 km deep · 95 km away
- 2.1120 km SE of Ugashik, Alaska · 3212 days ago · 69 km deep · 93 km away
- 2.5114 km SSE of Ugashik, Alaska · 3207 days ago · 79 km deep · 93 km away
- 2.5107 km E of Chignik, Alaska · 3198 days ago · 32 km deep · 79 km away
- 2.6120 km SSE of Ugashik, Alaska · 3195 days ago · 64 km deep · 88 km away
- 2.5129 km ESE of Chignik, Alaska · 3194 days ago · 66 km deep · 29 km away
- 2.361 km ESE of Chignik, Alaska · 3194 days ago · 25 km deep · 99 km away
- 2.1111 km SSE of Ugashik, Alaska · 3181 days ago · 20 km deep · 96 km away
- 2.3120 km ESE of Chignik, Alaska · 3180 days ago · 17 km deep · 38 km away
- 2.3120 km ENE of Chignik, Alaska · 3173 days ago · 74 km deep · 85 km away
- 2.188 km E of Chignik, Alaska · 3169 days ago · 27 km deep · 89 km away
- 2.689 km E of Chignik, Alaska · 3167 days ago · 43 km deep · 87 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak017fj5qn76 (also filed as ak17456947, us1000bkvz). Read Fri, Oct 2, 2026, 8:53 PM UTC.