M2.6 Earthquake 31 km WNW of Nikiski, Alaska — March 18, 2026
2026-03-18 18:42:49 UTC (2026-03-18) · approx. 8:42 AM UTC-10 local
On March 18, 2026 at 18:42 UTC, a magnitude 2.6 intermediate depth earthquake struck 31 km WNW of Nikiski, Alaska, at a depth of 86.3 km and coordinates 60.7970°, -151.8260°.
Physical scale: An earthquake of magnitude 2.6 releases seismic energy equivalent to roughly 120 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 37 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 2 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-151.8260°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 2.6 earthquake near Nikiski, Alaska?
The magnitude 2.6 earthquake that struck 31 km WNW of Nikiski, Alaska on March 18, 2026 at 18:42 UTC had a depth of 86.3 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 2.6 earthquakes can continue for several days and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Actions
Understanding This Data
Magnitude 2.6 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: aka2026fkykce). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, March 18, 2026). M2.6 Earthquake 31 km WNW of Nikiski, Alaska — March 18, 2026. Retrieved May 19, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026fkykce/