2.7

M2.7 Earthquake 77 km SSW of Adak, Alaska — December 31, 2021

2021-12-31 21:45:56 UTC (2021-12-31) · approx. 9:45 AM UTC-12 local

MagnitudeM2.7(ml)
Time21:45 UTC≈ 9:45 AM UTC-12
Depth35.0 kmshallow crustal
Coordinates51.221°, -177.017°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 51.22°, -177.02°

Earthquake Details

Magnitude
2.7 ml
Depth
35.0 km
shallow crustal
Location
51.2210°N
-177.0174°E

Technical Information

Event ID
us7000gfn6
Event Type
earthquake
Status
✓ Reviewed
Significance
112
Azimuthal Gap
224.0°
Min Station Distance
0.558°
RMS Residual
0.44 sec
Last Updated
2022-03-05 23:11:15 UTC

Nearby Earthquakes (Last 7 Days)

3.9
167 km WSW of Nikolski, Alaska
14 hours ago · 90.5 km deep
3.5
Rat Islands, Aleutian Islands, Alaska
1 day ago · 57.3 km deep
3.4
160 km WSW of Adak, Alaska
1 day ago · 35.0 km deep
3.1
113 km SW of Adak, Alaska
1 day ago · 35.0 km deep
2.7
243 km WSW of Adak, Alaska
1 day ago · 9.1 km deep
2.5
85 km WSW of Atka, Alaska
1 day ago · 108.0 km deep
3.4
Rat Islands, Aleutian Islands, Alaska
1 day ago · 20.0 km deep
3.0
134 km SW of Adak, Alaska
1 day ago · 14.6 km deep
3.1
257 km SSW of Adak, Alaska
1 day ago · 20.0 km deep
2.5
55 km SE of Adak, Alaska
1 day ago · 37.2 km deep

Actions

View on USGSDid You Feel It?

Location

Alaska
View all Alaska earthquakes

Understanding This Data

Magnitude 2.7 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000gfn6). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, December 31, 2021). M2.7 Earthquake 77 km SSW of Adak, Alaska — December 31, 2021. Retrieved March 5, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000gfn6/