M4.9 earthquake 247 km SE of Chignik, Alaska
A magnitude 4.9 earthquake struck 247 km SE of Chignik, Alaska on Wed, Oct 11, 2017, 4:01 PM AKDT (00:01 UTC), 3 km (2 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb, body-wave), light
- Magnitude from
- Alaska Earthquake Center
- Local time
- UTC
- 2017-10-12 00:01:54 UTC
- Depth
- 2.7 km (1.7 mi), shallow
- Epicenter
- 54.601° N, 155.881° W
- Region
- Alaska
- Felt reports
- 1
- 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 |
|---|---|---|---|
| 4.9 | mb, body-wave | Alaska Earthquake Center | Preferred · Preliminary |
| 4.9 | mb, body-wave | USGS National Earthquake Information Center | Reviewed · ±0.052 · 115 stations |
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
How well it is located
Reviewed by a seismologist.
- Stations used
- 89
Nearby
Within 100 km, magnitude 1.9 and up: 0 in the 60 days after this one and 3 in the 30 days before it.
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak017d3c68nk (also filed as ak17017316, us1000aqjd). Read Sat, Oct 3, 2026, 4:05 PM UTC.