M 4.2 Earthquake Hits 24 km SSW of Chiniak, 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 4.2 earthquake occurred 24 km south-southwest of Chiniak, Alaska, at a depth of 47.5 km, and was felt by 38 people according to reports.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on April 29, 2026 and geographically references Alaska. Its severity classification of "medium" 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 4.2 ml earthquake struck 24 km SSW of Chiniak, Alaska, at a depth of 47.5 kilometers. The event occurred on June 15, 2026, at 12:36:25 PM UTC.
Location Details
The earthquake was centered at coordinates 57.409° N latitude and -152.432° W longitude, near Chiniak in Alaska. With a depth of 47.5 km, this is considered an intermediate depth earthquake (between 20-70 km), which can lead to shaking over a broader area compared to shallower events.
Impact Assessment
The earthquake was felt by 38 people, as reported. There is no tsunami advisory, and no alert level has been issued.
What You Should Know
This light earthquake may be followed by aftershocks, which are common after such events. For safety, if you experience shaking, drop to the ground, cover your head and neck, and hold on to a sturdy object until the shaking stops.
Source
Information from the United States Geological Survey (USGS): https://earthquake.usgs.gov/earthquakes/eventpage/aka2026iiuvdi
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 (1,008 characters here).
Similar severity timing
Same severity (medium) notices issued closest in time to April 29, 2026.
Frequently Asked Questions
Common questions about this USGS earthquake report.