First published · Last updated
M 4 earthquake - 86 km SSW of Nikolski, Alaska
USGS reports a magnitude 4.0 earthquake located 86 km SSW of Nikolski, Alaska (coordinates 52.225, -169.349) at a depth of 17.2 km.
Categories: severe-weather-and-natural-disasters
Generated scores
Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.
- Confidence
- 9/10
- Geographic reach
- 2/10
- Global importance
- 3/10
- Impact magnitude
- 3/10
- Positivity
- 2/10
- Urgency
- 3/10
Why it matters
Magnitude-4 earthquakes are generally light and often cause little to no damage, but they can be felt locally. This is primarily of local interest for residents, visitors, and responders in the Aleutian Islands region; monitoring from USGS provides reliable event details.

