2.5

M2.5 Earthquake 46 km S of Old Harbor, Alaska — September 17, 2025

2025-09-17 17:28:43 UTC (2025-09-17) · approx. 7:28 AM UTC-10 local

MagnitudeM2.5(ml)
Time17:28 UTC≈ 7:28 AM UTC-10
Depth114.3 kmintermediate depth
Coordinates56.785°, -153.209°
Felt byNo felt reports
StatusAutomatic (preliminary)
Map showing earthquake epicenter at 56.78°, -153.21°

Earthquake Details

Magnitude
2.5 ml
Depth
114.3 km
intermediate depth
Location
56.7845°N
-153.2090°E

Technical Information

Event ID
ak025bya022u
Event Type
earthquake
Status
Automatic
Significance
96
RMS Residual
0.86 sec
Last Updated
2025-09-17 17:32:20 UTC

Nearby Earthquakes (Last 7 Days)

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2.7
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2.6
52 km E of Pedro Bay, Alaska
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2.5
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Actions

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Location

Alaska
View all Alaska earthquakes

Understanding This Data

Magnitude 2.5 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Be Prepared

→ What to do during an earthquake→ Create an emergency plan→ Emergency kit essentials→ See all M4.5+ earthquakes today

Authoritative source: USGS event page (event ID: ak025bya022u). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, September 17, 2025). M2.5 Earthquake 46 km S of Old Harbor, Alaska — September 17, 2025. Retrieved May 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/ak025bya022u/