M 5.8 Earthquake Hits 235 km ESE of Attu Station, 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 5.8 magnitude earthquake occurred 235 km east-southeast of Attu Station, Alaska, at a depth of 10 km on June 28, 2026, at 05:48:52 UTC.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on May 6, 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 5.8 magnitude earthquake, measured as M 5.8 mww, struck 235 km ESE of Attu Station, Alaska, at a depth of 10 kilometers. The event occurred on June 28, 2026, at 05:48:52 UTC.
Location Details
The earthquake was located at coordinates 52.2595° N, 176.518° E, approximately 235 km east-southeast of Attu Station in Alaska. At a depth of 10 km, this is considered a shallow earthquake, which typically results in stronger shaking near the surface compared to deeper events.
Impact Assessment
There were no felt reports for this earthquake. No tsunami advisory was issued, and the alert level is green, indicating a low level of concern.
What You Should Know
This moderate earthquake may cause damage to poorly constructed buildings. Be aware of the possibility of aftershocks, and follow general safety tips such as securing heavy items and knowing how to drop, cover, and hold on during shaking.
Source
Information from the United States Geological Survey (USGS). Visit: https://earthquake.usgs.gov/earthquakes/eventpage/us6000svnr for more details.
Original source: USGS Official Notice ↗
Related Earthquakes
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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 (1,082 characters here).
Similar severity timing
Same severity (medium) notices issued closest in time to May 6, 2026.
Frequently Asked Questions
Common questions about this USGS earthquake report.