2.1

M2.1 Earthquake near Rat Islands, Aleutian Islands, Alaska — July 21, 2025

2025-07-21 22:24:14 UTC (2025-07-21) · approx. 10:24 AM UTC+12 local

MagnitudeM2.1(ml)
Time22:24 UTC≈ 10:24 AM UTC+12
Depth5.2 kmshallow crustal
Coordinates51.938°, 177.768°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 51.94°, 177.77°

Earthquake Details

Magnitude
2.1 ml
Depth
5.2 km
shallow crustal
Location
51.9379°N
177.7682°E

Technical Information

Event ID
ak0259afssua
Event Type
earthquake
Status
✓ Reviewed
Significance
68
RMS Residual
0.86 sec
Last Updated
2025-08-30 07:07:06 UTC

Nearby Earthquakes (Last 7 Days)

5.0
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2.6
180 km WSW of Adak, Alaska
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3.3
230 km ESE of Attu Station, Alaska
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3.8
229 km ESE of Attu Station, Alaska
3 days ago · 1.0 km deep
2.6
187 km W of Adak, Alaska
3 days ago · 86.6 km deep
3.5
99 km SW of Atka, Alaska
3 days ago · 20.6 km deep
2.5
75 km SE of Adak, Alaska
3 days ago · 14.9 km deep
3.7
65 km WSW of Atka, Alaska
3 days ago · 8.2 km deep
3.4
232 km ESE of Attu Station, Alaska
3 days ago · 5.0 km deep
3.2
228 km ESE of Attu Station, Alaska
3 days ago · 5.0 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: ak0259afssua). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, July 21, 2025). M2.1 Earthquake near Rat Islands, Aleutian Islands, Alaska — July 21, 2025. Retrieved August 30, 2025 from https://www.earthquaketracker.org/earthquakes/event/ak0259afssua/