2.1

M2.1 Earthquake 56 km W of Adak, Alaska — November 20, 2021

2021-11-20 19:34:02 UTC (2021-11-20) · approx. 7:34 AM UTC-12 local

MagnitudeM2.1(ml)
Time19:34 UTC≈ 7:34 AM UTC-12
Depth100.8 kmintermediate depth
Coordinates51.786°, -177.449°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 51.79°, -177.45°

Earthquake Details

Magnitude
2.1 ml
Depth
100.8 km
intermediate depth
Location
51.7862°N
-177.4486°E

Technical Information

Event ID
ak021ew5mz0p
Event Type
earthquake
Status
✓ Reviewed
Significance
68
RMS Residual
0.55 sec
Last Updated
2021-12-21 00:56:03 UTC

Nearby Earthquakes (Last 7 Days)

3.9
169 km WSW of Nikolski, Alaska
21 hours ago · 111.2 km deep
3.8
169 km WSW of Nikolski, Alaska
22 hours ago · 108.9 km deep
3.5
192 km SW of Nikolski, Alaska
22 hours ago · 10.0 km deep
6.5
165 km W of Nikolski, Alaska
22 hours ago · 111.7 km deep
3.9
167 km WSW of Nikolski, Alaska
2 days ago · 90.5 km deep
2.5
118 km SSW of Atka, Alaska
2 days ago · 14.6 km deep
3.5
Rat Islands, Aleutian Islands, Alaska
2 days ago · 57.3 km deep
3.4
160 km WSW of Adak, Alaska
2 days ago · 35.0 km deep
3.1
113 km SW of Adak, Alaska
3 days ago · 35.0 km deep
2.7
243 km WSW of Adak, Alaska
3 days ago · 9.1 km deep

Actions

View on USGSDid You Feel It?

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: ak021ew5mz0p). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, November 20, 2021). M2.1 Earthquake 56 km W of Adak, Alaska — November 20, 2021. Retrieved December 21, 2021 from https://www.earthquaketracker.org/earthquakes/event/ak021ew5mz0p/