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
2026-07-03 01:38:51 UTC

Nearby Earthquakes (Last 7 Days)

3.5
204 km SSW of Adak, Alaska
1 day ago · 10.0 km deep
3.8
138 km E of Atka, Alaska
1 day ago · 10.0 km deep
3.5
277 km SW of Adak, Alaska
1 day ago · 10.0 km deep
2.8
99 km ESE of Atka, Alaska
2 days ago · 10.0 km deep
3.9
132 km WSW of Adak, Alaska
2 days ago · 9.9 km deep
3.5
66 km SW of Adak, Alaska
3 days ago · 38.2 km deep
3.5
161 km SW of Nikolski, Alaska
4 days ago · 9.1 km deep
3.5
157 km SW of Nikolski, Alaska
4 days ago · 15.2 km deep
2.5
155 km WSW of Adak, Alaska
4 days ago · 10.6 km deep
2.9
92 km W of Adak, Alaska
4 days ago · 14.9 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 →

Be Prepared

→ What to do during an earthquake→ Create an emergency plan→ Emergency kit essentials→ See all M4.5+ earthquakes today

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 July 3, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000ss4d/