M 3.5 Earthquake Hits 45 km WNW of Ninilchik, Alaska
Areazine synthesizes this USGS earthquake report directly from USGS's official public data feed. See our methodology for full source attribution and refresh cadence.
A magnitude 3.5 earthquake struck 45 km west-northwest of Ninilchik, Alaska, at a depth of 101 km on September 12, 2026. The event was detected with no reported tsunami risk.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on April 18, 2026 and geographically references Alaska. Its severity classification of "low" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Earthquakes - determines the monitoring protocol behind it, which shapes what follow-up action (checking for structural damage, watching for aftershocks, reviewing local building codes) is relevant and which agency holds authority over the assessment.
Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to verify its scope, source, and timestamp, then compare related notices without assuming that one record proves a broader trend.
Areazine pairs this record with the original agency URL so you can check the primary source before acting. Its related labels are earthquake, seismic, usgs, Alaska.
What Happened
A magnitude 3.5 ml earthquake occurred on September 12, 2026, at 04:22:29 UTC (converted from Unix timestamp), located 45 km WNW of Ninilchik, Alaska. The quake happened at a depth of 101 km.
Location Details
The earthquake was centered 45 km WNW of Ninilchik, Alaska, with coordinates at latitude 60.275 and longitude -152.346. At a depth of 101 km, this is considered a deep earthquake (greater than 70 km), which typically results in less intense shaking at the surface compared to shallower events.
Impact Assessment
There were no felt reports available, and no tsunami advisory was issued, as indicated by the data.
What You Should Know
This minor earthquake, with a magnitude of 3.5, is often felt but rarely causes damage. Be aware of the possibility of aftershocks, and follow basic safety tips such as staying indoors during shaking and preparing an emergency kit.
Source
Information from USGS: [https://earthquake.usgs.gov/earthquakes/eventpage/aka2026hovvir]
Original source: USGS Official Notice ↗
Related Earthquakes
All Earthquakes →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this USGS earthquake report: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (997 characters here).
Similar severity timing
Same severity (low) notices issued closest in time to April 18, 2026.
Frequently Asked Questions
Common questions about this USGS earthquake report.