M 4.0 - 64 km E of Port Alsworth, Alaska
December 29, 2003 at 20:53:54 UTC
Depth: 138.40 km (Intermediate)
Light
PAGER Alert
Tsunami
Felt Reports
Event Details
| Magnitude | 4.0 mb |
| Depth | 138.40 km (Intermediate) |
| Location | 60.2259N, 153.1523W |
| Tsunami Warning | No |
| Significance | 246 / 3000 |
| Status | Reviewed |
| Network | ak |
| USGS Event Page | View on USGS → |
Frequently Asked Questions
What does magnitude 4 mean?
A magnitude 4 earthquake is classified as "Light". Light earthquakes produce noticeable shaking but rarely cause damage.
How deep was this earthquake?
This earthquake occurred at a depth of 138.40 km, classified as "Intermediate". Intermediate-depth earthquakes are felt over a wider area but cause less surface damage.
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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.