2.9

M2.9 Earthquake 191 km S of Adak, Alaska — April 21, 2026

2026-04-21 19:37:08 UTC (2026-04-21) · approx. 7:37 AM UTC-12 local

MagnitudeM2.9(ml)
Time19:37 UTC≈ 7:37 AM UTC-12
Depth19.9 kmshallow crustal
Coordinates50.155°, -176.828°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 50.15°, -176.83°

Earthquake Details

Magnitude
2.9 ml
Depth
19.9 km
shallow crustal
Location
50.1546°N
-176.8283°E

Technical Information

Event ID
us6000ss4d
Event Type
earthquake
Status
✓ Reviewed
Significance
129
Stations Used
14
Azimuthal Gap
307.0°
Min Station Distance
1.629°
RMS Residual
0.53 sec
Last Updated
2026-10-09 15:46:16 UTC

Nearby Earthquakes (Last 7 Days)

2.7
7 km ESE of Atka, Alaska
12 hours ago · 215.4 km deep
2.8
29 km WNW of Atka, Alaska
15 hours ago · 199.2 km deep
2.5
54 km ESE of Atka, Alaska
3 days ago · 75.4 km deep
2.7
180 km SSE of Adak, Alaska
3 days ago · 12.8 km deep
2.6
54 km SSE of Adak, Alaska
3 days ago · 27.4 km deep
2.6
65 km ESE of Atka, Alaska
3 days ago · 71.3 km deep
2.5
Rat Islands, Aleutian Islands, Alaska
3 days ago · 94.6 km deep
3.1
177 km W of Nikolski, Alaska
3 days ago · 11.4 km deep
2.9
186 km S of Atka, Alaska
3 days ago · 24.7 km deep
3.1
68 km E of Atka, Alaska
4 days ago · 0.0 km deep

Actions

View on USGSDid You Feel It?

Location

Alaska
View all Alaska earthquakes

Understanding This Data

Magnitude 2.9 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000ss4d). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, April 21, 2026). M2.9 Earthquake 191 km S of Adak, Alaska — April 21, 2026. Retrieved October 9, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000ss4d/