M3.3 earthquake 204 km SSE of Atka, Alaska
A magnitude 3.3 earthquake struck 204 km SSE of Atka, Alaska on Sat, Jun 29, 2019, 2:36 PM HADT (23:36 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M3.9 190 km S of Atka, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.3 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-06-29 23:36:56 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 50.489° N, 173.095° W
- Region
- Alaska
- 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 |
|---|---|---|---|
| 3.3 | ML, local (Richter) | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.115 · 10 stations |
| 2.8 | ML, local (Richter) | Alaska Earthquake Center | Preliminary |
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 8.1 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- Operator assigned
- Station coverage gap
- 236°, poorly surrounded by stations
- Stations used
- 19
Nearby
Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 0 in the 30 days before it.
After
- 3.1156 km SSE of Atka, Alaska · 2641 days ago · 10 km deep · 50 km away
- 1.8132 km SSE of Atka, Alaska · 2640 days ago · 39 km deep · 80 km away
- 2.7221 km SSE of Atka, Alaska · 2639 days ago · 10 km deep · 43 km away
- 1.9192 km SSE of Atka, Alaska · 2638 days ago · 3 km deep · 23 km away
- 2.0184 km SE of Atka, Alaska · 2631 days ago · 10 km deep · 71 km away
- 1.7185 km SSE of Atka, Alaska · 2631 days ago · 9 km deep · 28 km away
- 1.9133 km S of Atka, Alaska · 2624 days ago · 15 km deep · 90 km away
- 3.9190 km S of Atka, Alaska · 2616 days ago · 10 km deep · 97 km away
- 2.1166 km S of Atka, Alaska · 2607 days ago · 23 km deep · 76 km away
- 2.2172 km SSE of Atka, Alaska · 2607 days ago · 0 km deep · 34 km away
- 2.1196 km S of Atka, Alaska · 2595 days ago · 10 km deep · 79 km away
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us60004ug5 (also filed as ak0198a2ne66). Read Fri, Oct 2, 2026, 8:07 AM UTC.