How strong was the 73 km SSE of Nikolski, Alaska earthquake?
The 73 km SSE of Nikolski, Alaska earthquake had a magnitude of 4.8 mww, 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 52.3096N, 168.5496W, at a depth of 24.8 km. This intermediate depth can still produce significant shaking at the surface.
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 April 28, 2025 at 05:07:03. The USGS assigned it a significance score of 354 out of a possible 3,000, which factors in magnitude, felt reports, and potential impact. This is a relatively routine seismic event.