2.8

M2.8 Earthquake 186 km S of Atka, Alaska — July 21, 2026

2026-07-21 13:56:16 UTC (2 days ago) · approx. 1:56 AM UTC-12 local

MagnitudeM2.8(ml)
Time13:56 UTC≈ 1:56 AM UTC-12
Depth7.3 kmshallow crustal
Coordinates50.527°, -173.890°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 50.53°, -173.89°

Earthquake Details

Magnitude
2.8 ml
Depth
7.3 km
shallow crustal
Location
50.5270°N
-173.8900°E

Technical Information

Event ID
aka2026oiiicc
Event Type
earthquake
Status
✓ Reviewed
Significance
121
Stations Used
10
Azimuthal Gap
305.0°
Min Station Distance
1.700°
RMS Residual
0.30 sec
Last Updated
2026-07-23 22:40:18 UTC

Nearby Earthquakes (Last 7 Days)

3.2
171 km E of Atka, Alaska
9 hours ago · 30.0 km deep
5.1
92 km SE of Atka, Alaska
14 hours ago · 35.0 km deep
4.6
95 km SE of Atka, Alaska
17 hours ago · 40.7 km deep
2.6
180 km WSW of Adak, Alaska
2 days ago · 8.1 km deep
2.6
187 km W of Adak, Alaska
2 days ago · 86.6 km deep
3.0
143 km SW of Nikolski, Alaska
2 days ago · 27.4 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
3.5
199 km WSW of Adak, Alaska
3 days ago · 8.7 km deep

Actions

View on USGSDid You Feel It?

Location

Alaska
View all Alaska earthquakes

Understanding This Data

Magnitude 2.8 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: aka2026oiiicc). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, July 21, 2026). M2.8 Earthquake 186 km S of Atka, Alaska — July 21, 2026. Retrieved July 23, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026oiiicc/