M 3.7 Earthquake 55 km SW of Nanwalek, 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 3.7 ml earthquake struck 55 km southwest of Nanwalek, Alaska, at a depth of 68 km.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on June 21, 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 M 3.7 ml earthquake occurred at 55 km SW of Nanwalek, Alaska. The event was recorded at Unix time 1780892351489 with a depth of 68 km.
Location Details
The earthquake was located at coordinates 58.983 latitude, -152.554 longitude. This places the epicenter 55 km southwest of Nanwalek, Alaska. The 68 km depth classifies as intermediate (20-70 km).
Impact Assessment
The earthquake was felt by 1 person with a maximum reported intensity (CDI) of 2 and MMI of 2.503. No tsunami advisory was issued (tsunami: 0) and no alert level was assigned.
What You Should Know
This was a minor earthquake (M 2.5-3.9). Such events are often felt but rarely cause damage. Residents should be aware of the possibility of aftershocks.
Source
https://earthquake.usgs.gov/earthquakes/eventpage/aka2026lgecnl (USGS)
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 (830 characters here).
Similar severity timing
Same severity (low) notices issued closest in time to June 21, 2026.
Frequently Asked Questions
Common questions about this USGS earthquake report.