3.2

M3.2 Earthquake 101 km SSW of Nikolski, Alaska — September 5, 2026

2026-09-05 02:57:35 UTC (2026-09-05) · approx. 3:57 PM UTC-11 local

MagnitudeM3.2(ml)
Time02:57 UTC≈ 3:57 PM UTC-11
Depth17.3 kmshallow crustal
Coordinates52.066°, -169.294°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 5, 2026 at 02:57 UTC, a magnitude 3.2 shallow crustal earthquake struck 101 km SSW of Nikolski, Alaska, at a depth of 17.3 km and coordinates 52.0662°, -169.2938°.

Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 951 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 97 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 52.07°, -169.29°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M3.2 earthquake near 101 km SSW of Nikolski, Alaska

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Earthquake Details

Magnitude
3.2 ml
Depth
17.3 km
shallow crustal
Location
52.0662°N
-169.2938°E
Intensity (MMI)
1.9
weak

Technical Information

Event ID
us7000tehp
Event Type
earthquake
Status
✓ Reviewed
Significance
158
Stations Used
21
Azimuthal Gap
225.0°
Min Station Distance
0.768°
RMS Residual
0.78 sec
Last Updated
2026-09-19 03:04:26 UTC

Common Questions

How strong was the magnitude 3.2 earthquake near Nikolski, Alaska?

The magnitude 3.2 earthquake that struck 101 km SSW of Nikolski, Alaska on September 5, 2026 at 02:57 UTC had a depth of 17.3 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.2 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000tehp). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, September 5, 2026). M3.2 Earthquake 101 km SSW of Nikolski, Alaska — September 5, 2026. Retrieved September 19, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000tehp/