M 3.4 Earthquake Strikes 76 km ENE of Port Alsworth, 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 3.4 earthquake occurred on June 28, 2026, at 18:44:20 UTC, centered 76 km east-northeast of Port Alsworth, Alaska, at a depth of 145.5 km.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on May 5, 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 3.4 ml earthquake occurred 76 km ENE of Port Alsworth, Alaska, at a depth of 145.5 km. The event took place on June 28, 2026, at 18:44:20 UTC.
Location Details
The earthquake was located at coordinates 60.396° N, 152.992° W, approximately 76 km east-northeast of Port Alsworth in Alaska. With a depth of 145.5 km, this is considered a deep earthquake (greater than 70 km), which typically occurs in the Earth's mantle and may result in less surface shaking compared to shallower events.
Impact Assessment
There are no felt reports available for this earthquake, and no tsunami advisory has been issued.
What You Should Know
This minor earthquake, with a magnitude of 3.4, is often felt but rarely causes damage. Aftershocks are possible with such events, and general safety tips include staying informed through official channels and, if shaking is felt, dropping to the ground, covering your head and neck, and holding on until it stops.
Source
Information from the United States Geological Survey (USGS): https://earthquake.usgs.gov/earthquakes/eventpage/aka2026iwurap
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 (1,187 characters here).
Similar severity timing
Same severity (low) notices issued closest in time to May 5, 2026.
Frequently Asked Questions
Common questions about this USGS earthquake report.