3.4

M3.4 Earthquake 61 km ESE of King Salmon, Alaska — October 11, 2026

2026-10-11 08:27:06 UTC (50 min ago) · approx. 10:27 PM UTC-10 local

MagnitudeM3.4(ml)
Time08:27 UTC≈ 10:27 PM UTC-10
Depth152.8 kmintermediate depth
Coordinates58.459°, -155.693°
Felt byNo felt reports
StatusAutomatic (preliminary)

On October 11, 2026 at 08:27 UTC, a magnitude 3.4 intermediate depth earthquake struck 61 km ESE of King Salmon, Alaska, at a depth of 152.8 km and coordinates 58.4590°, -155.6930°.

Physical scale: An earthquake of magnitude 3.4 releases seismic energy equivalent to roughly 1.9 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 134 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 58.46°, -155.69°

Earthquake Details

Magnitude
3.4 ml
Depth
152.8 km
intermediate depth
Location
58.4590°N
-155.6930°E

Technical Information

Event ID
aka2026udjcmd
Event Type
earthquake
Status
Automatic
Significance
178
Stations Used
198
Azimuthal Gap
37.0°
0
RMS Residual
1.10 sec
Last Updated
2026-10-11 08:31:59 UTC

Common Questions

How strong was the magnitude 3.4 earthquake near King Salmon, Alaska?

The magnitude 3.4 earthquake that struck 61 km ESE of King Salmon, Alaska on October 11, 2026 at 08:27 UTC had a depth of 152.8 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 3.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.4 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: aka2026udjcmd). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, October 11, 2026). M3.4 Earthquake 61 km ESE of King Salmon, Alaska — October 11, 2026. Retrieved October 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026udjcmd/