How strong was the 74 km NE of Adak, Alaska earthquake?
The 74 km NE of Adak, Alaska earthquake had a magnitude of 5 mb, classified as a "Moderate" earthquake on the magnitude scale. Earthquakes of this magnitude can cause damage to poorly constructed buildings and are felt widely.
Where exactly did this earthquake occur and how deep was it?
This earthquake struck at coordinates 52.3528N, 175.8701W, at a depth of 156.9 km. Deep earthquakes are generally felt over a wider area but cause less intense 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?
1 people submitted felt reports to the USGS for this earthquake. The Community Decimal Intensity (CDI) reached 2.2, indicating light shaking noticed by some people. The Modified Mercalli Intensity (MMI) was estimated at 3.3.
When did this earthquake happen and how significant was it?
This earthquake occurred on February 11, 2026 at 08:09:08. The USGS assigned it a significance score of 385 out of a possible 3,000, which factors in magnitude, felt reports, and potential impact. This is a relatively routine seismic event.