2.5

M2.5 Earthquake 55 km SSE of Atka, Alaska — September 17, 2026

2026-09-17 23:55:17 UTC (4 days ago) · approx. 11:55 AM UTC-12 local

MagnitudeM2.5(ml)
Time23:55 UTC≈ 11:55 AM UTC-12
Depth52.8 kmshallow crustal
Coordinates51.708°, -174.026°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 51.71°, -174.03°

Earthquake Details

Magnitude
2.5 ml
Depth
52.8 km
shallow crustal
Location
51.7080°N
-174.0260°E

Technical Information

Event ID
aka2026smfnrn
Event Type
earthquake
Status
✓ Reviewed
Significance
96
Stations Used
10
Azimuthal Gap
278.0°
Min Station Distance
0.500°
RMS Residual
0.40 sec
Last Updated
2026-09-22 21:52:47 UTC

Nearby Earthquakes (Last 7 Days)

3.5
148 km WSW of Adak, Alaska
17 hours ago · 0.1 km deep
3.9
166 km WSW of Nikolski, Alaska
22 hours ago · 129.5 km deep
3.6
167 km WSW of Nikolski, Alaska
1 day ago · 105.6 km deep
3.5
145 km SW of Nikolski, Alaska
1 day ago · 35.0 km deep
3.2
169 km WSW of Nikolski, Alaska
2 days ago · 101.4 km deep
3.5
168 km SW of Nikolski, Alaska
2 days ago · 103.5 km deep
4.6
102 km WSW of Nikolski, Alaska
2 days ago · 87.3 km deep
4.0
85 km SSW of Nikolski, Alaska
3 days ago · 40.5 km deep
4.0
166 km SW of Nikolski, Alaska
3 days ago · 12.9 km deep
3.6
47 km WSW of Nikolski, Alaska
4 days ago · 70.3 km deep

Actions

View on USGSDid You Feel It?

Location

Alaska
View all Alaska earthquakes

Understanding This Data

Magnitude 2.5 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: aka2026smfnrn). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, September 17, 2026). M2.5 Earthquake 55 km SSE of Atka, Alaska — September 17, 2026. Retrieved September 22, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026smfnrn/