3.6

M3.6 Earthquake 36 km SSW of Lake Minchumina, AlaskaAugust 5, 2026

2026-08-05 08:55:20 UTC (44 min ago) · approx. 10:55 PM UTC-10 local

MagnitudeM3.6(ml)
Time08:55 UTC10:55 PM UTC-10
Depth11.0 kmshallow crustal
Coordinates63.569°, -152.528°
Felt byNo felt reports
StatusAutomatic (preliminary)

On August 5, 2026 at 08:55 UTC, a magnitude 3.6 shallow crustal earthquake struck 36 km SSW of Lake Minchumina, Alaska, at a depth of 11.0 km and coordinates 63.5690°, -152.5280°.

Physical scale: An earthquake of magnitude 3.6 releases seismic energy equivalent to roughly 3.8 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 184 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 63.57°, -152.53°

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 M3.6 earthquake near 36 km SSW of Lake Minchumina, Alaska

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

Earthquake Details

Magnitude
3.6 ml
Depth
11.0 km
shallow crustal
Location
63.5690°N
-152.5280°E
Intensity (MMI)
3.9
light

Technical Information

Event ID
aka2026pjqoyy
Event Type
earthquake
Status
Automatic
Significance
199
Stations Used
57
Azimuthal Gap
45.0°
Min Station Distance
0.200°
RMS Residual
0.90 sec
Last Updated
2026-08-05 09:14:57 UTC

Common Questions

How strong was the magnitude 3.6 earthquake near Lake Minchumina, Alaska?

The magnitude 3.6 earthquake that struck 36 km SSW of Lake Minchumina, Alaska on August 5, 2026 at 08:55 UTC had a depth of 11.0 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 3.6 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.6 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: aka2026pjqoyy). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 5, 2026). M3.6 Earthquake 36 km SSW of Lake Minchumina, AlaskaAugust 5, 2026. Retrieved August 5, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026pjqoyy/