How strong was the 107 km S of Atka, Alaska earthquake?
The 107 km S of Atka, Alaska earthquake had a magnitude of 4.7 mb, classified as a "Light" earthquake on the magnitude scale. Earthquakes of this magnitude are typically felt by people nearby but rarely cause significant structural damage.
Where exactly did this earthquake occur and how deep was it?
This earthquake struck at coordinates 51.2454N, 173.9464W, at a depth of 13.4 km. Shallow earthquakes (under 20 km) tend to cause more surface damage than deeper events.
Did this earthquake trigger a tsunami warning?
No tsunami warning was issued for this earthquake. Earthquakes below magnitude 6.5 rarely generate dangerous tsunamis, though localized effects are possible in rare cases.
How many people felt this earthquake?
No felt reports were submitted to the USGS for this earthquake. This may indicate the earthquake occurred in a remote area with few nearby residents, or the shaking was too minor to be widely noticed.
When did this earthquake happen and how significant was it?
This earthquake occurred on September 2, 2025 at 12:37:29. The USGS assigned it a significance score of 340 out of a possible 3,000, which factors in magnitude, felt reports, and potential impact. This is a relatively routine seismic event.