M2.6 earthquake 164 km NW of Adak, Alaska
A magnitude 2.6 earthquake struck 164 km NW of Adak, Alaska on Sat, Dec 16, 2017, 6:01 AM HAST (16:01 UTC), 45 km (28 mi) below the surface.
A larger quake followed: M5.7 204 km WNW of Adak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.6 (ML, local (Richter)), micro
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-12-16 16:01:37 UTC
- Depth
- 45.4 km (28.2 mi), shallow
- Epicenter
- 52.931° N, 178.331° 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.
- Location uncertainty
- About 6.8 km horizontally, 73.9 km in depth
- Depth from
- From location
- Station coverage gap
- 249°, poorly surrounded by stations
- Stations used
- 10
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 2.3128 km WNW of Adak, Alaska · 3201 days ago · 130 km deep · 87 km away
- 2.2130 km W of Adak, Alaska · 3195 days ago · 13 km deep · 98 km away
- 2.5140 km W of Adak, Alaska · 3182 days ago · 4 km deep · 93 km away
- 5.7204 km WNW of Adak, Alaska · 3158 days ago · 211 km deep · 80 km away · felt by 2 · tsunami flag
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000bsw2 (also filed as ak17611597). Read Fri, Oct 2, 2026, 4:39 AM UTC.