M 5.5 - 92 km SW of Nikolski, Alaska
February 23, 2026 at 10:02:08 UTC
Depth: 10.00 km (Shallow)
Moderate
PAGER Alert
Tsunami
Felt Reports
Event Details
| Magnitude | 5.5 mww |
| Depth | 10.00 km (Shallow) |
| Location | 52.4087N, 169.9056W |
| Mercalli Intensity | IV (Light) |
| Alert Level (PAGER) | Green — No fatalities or damage expected |
| Tsunami Warning | Yes |
| Significance | 465 / 3000 |
| Status | Reviewed |
| Network | us |
| USGS Event Page | View on USGS → |
Frequently Asked Questions
What does magnitude 5.5 mean?
A magnitude 5.5 earthquake is classified as "Moderate". Moderate earthquakes can cause damage to poorly constructed buildings.
How deep was this earthquake?
This earthquake occurred at a depth of 10.00 km, classified as "Shallow". Shallow earthquakes tend to cause more damage at the surface.
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Data from the USGS Earthquake Hazards Program (ComCat). QuakeScan is not affiliated with the USGS. Event details may be updated as new data becomes available.