2.1

M2.1 Earthquake 129 km S of Unalaska, Alaska — April 23, 2025

2025-04-23 21:46:47 UTC (2025-04-23) · approx. 10:46 AM UTC-11 local

MagnitudeM2.1(ml)
Time21:46 UTC≈ 10:46 AM UTC-11
Depth25.1 kmshallow crustal
Coordinates52.714°, -166.635°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 52.71°, -166.63°

Earthquake Details

Magnitude
2.1 ml
Depth
25.1 km
shallow crustal
Location
52.7136°N
-166.6349°E

Technical Information

Event ID
ak025578iasa
Event Type
earthquake
Status
✓ Reviewed
Significance
68
RMS Residual
0.69 sec
Last Updated
2025-05-05 17:00:24 UTC

Nearby Earthquakes (Last 7 Days)

3.0
137 km SW of Nikolski, Alaska
19 hours ago · 5.0 km deep
3.9
128 km SSE of Atka, Alaska
23 hours ago · 35.0 km deep
2.9
141 km SW of Nikolski, Alaska
1 day ago · 19.0 km deep
2.6
99 km SSW of Unalaska, Alaska
1 day ago · 23.9 km deep
3.7
100 km SE of Atka, Alaska
1 day ago · 9.1 km deep
2.5
101 km SE of Atka, Alaska
1 day ago · 20.0 km deep
2.6
95 km SE of Akutan, Alaska
1 day ago · 16.5 km deep
2.6
111 km SE of Atka, Alaska
1 day ago · 27.5 km deep
2.5
71 km S of Unalaska, Alaska
1 day ago · 59.0 km deep
3.7
91 km SE of Atka, Alaska
1 day ago · 35.5 km deep

Actions

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Location

Alaska
View all Alaska earthquakes

Understanding This Data

Magnitude 2.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ak025578iasa). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, April 23, 2025). M2.1 Earthquake 129 km S of Unalaska, Alaska — April 23, 2025. Retrieved May 5, 2025 from https://www.earthquaketracker.org/earthquakes/event/ak025578iasa/