LIGHT EARTHQUAKE
234 km SSE of False Pass, Alaska
A magnitude 4.7 earthquake struck 234 km SSE of False Pass, Alaska on 20 Sept 2026, 21:06 UTC. The hypocentre was 19.4 km below the surface — shallow by seismological convention. The figures have been revised 4 times since the first report. 3 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.
- Depth
- 19.4 km
- Latitude
- 52.81°N
- Time
- 21:06 UTC
- Magnitude
- M4.7
shallow
162.52°W longitude
20 Sept 2026
ml
EPICENTRE
MAGNITUDE 4.7
Noticeable shaking of indoor objects. Damage is unlikely.
The scale is logarithmic: this released about 350 times the energy of a magnitude 3.0, roughly the energy of 169 tonnes of TNT.
19.4 KM DEEP
Shallow earthquakes release their energy close to the surface, so they are felt more strongly, and do more damage, than deeper earthquakes of the same magnitude.
NEARBY IN THE PAST 30 DAYS
3 earthquakes above our reporting threshold within 250 km of this one, the largest a magnitude 4.8.
OTHER RECENT EARTHQUAKES
20 Sept 2026, 22:09 UTC · 10 km deep
20 Sept 2026, 20:54 UTC · 10 km deep
20 Sept 2026, 17:51 UTC · 76.4 km deep
20 Sept 2026, 15:33 UTC · 507.1 km deep