M4.1 earthquake 137 km ESE of Chignik, Alaska
A magnitude 4.1 earthquake struck 137 km ESE of Chignik, Alaska on Sun, Oct 13, 2019, 7:29 PM AKDT (03:29 UTC), 43 km (27 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (ml), light
- Local time
- UTC
- 2019-10-14 03:29:20 UTC
- Depth
- 43.4 km (27.0 mi), shallow
- Epicenter
- 55.981° N, 156.261° W
- Region
- Alaska
- Strongest shaking
- III, weak shaking
- PAGER alert
- Green
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
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
- Peak ground acceleration
- 241.0% of gravity
- Peak ground velocity
- 0.2 cm/s
- 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% |
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Oblique normal
- Moment magnitude
- 4.2 Mwr
- Nodal plane 1
- Strike 183°, dip 82°, rake -143°
- Nodal plane 2
- Strike 87°, dip 54°, rake -10°
How well it is located
Reviewed by a seismologist.
- Stations used
- 183
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 6 in the 30 days before it.
After
- 2.665 km SE of Chignik, Alaska · 2542 days ago · 14 km deep · 81 km away
- 2.2110 km WSW of Akhiok, Alaska · 2541 days ago · 69 km deep · 81 km away
- 2.6133 km SW of Akhiok, Alaska · 2540 days ago · 52 km deep · 35 km away
- 3.2138 km WSW of Akhiok, Alaska · 2540 days ago · 66 km deep · 37 km away
- 3.5113 km E of Chignik, Alaska · 2517 days ago · 44 km deep · 34 km away
- 2.9180 km SE of Chignik, Alaska · 2506 days ago · 39 km deep · 97 km away
- 3.3114 km E of Chignik, Alaska · 2503 days ago · 44 km deep · 49 km away
- 2.3120 km SW of Akhiok, Alaska · 2498 days ago · 11 km deep · 50 km away
- 2.1118 km E of Chignik, Alaska · 2491 days ago · 60 km deep · 60 km away
- 2.095 km WSW of Akhiok, Alaska · 2490 days ago · 76 km deep · 85 km away
Before
- 2.587 km SSE of Ugashik, Alaska · 2543 days ago · 90 km deep · 97 km away
- 2.393 km ENE of Chignik, Alaska · 2549 days ago · 88 km deep · 90 km away
- 2.0112 km W of Akhiok, Alaska · 2550 days ago · 66 km deep · 95 km away
- 2.9137 km WSW of Akhiok, Alaska · 2553 days ago · 60 km deep · 41 km away
- 2.1114 km ENE of Chignik, Alaska · 2554 days ago · 64 km deep · 67 km away
- 2.4128 km E of Chignik, Alaska · 2566 days ago · 81 km deep · 59 km away
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak019d6p75v4 (also filed as us70005tzz). Read Tue, Sep 29, 2026, 1:30 PM UTC.