M 3.3 Earthquake Near Susitna, 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 3.3 earthquake occurred 19 km northwest of Susitna, Alaska, at an intermediate depth of 69.7 km, with only two people reporting it was felt.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on April 9, 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 read it as a data point about the issuing system: how quickly USGS detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action, a single localized USGS earthquake report is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.
For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (earthquake, seismic, usgs, Alaska) map to related alerts in the same area of risk - browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.
What Happened
A magnitude 3.3 ml earthquake struck 19 km NW of Susitna, Alaska, at a depth of 69.7 km. The event occurred on January 1, 2027, at 10:31:55 UTC.
Location Details
The earthquake was centered at coordinates 61.642° N latitude and -150.815° W longitude, near Susitna in Alaska. This intermediate-depth earthquake, at 69.7 km, typically occurs in regions like subduction zones and may result in less surface shaking compared to shallower events under 20 km.
Impact Assessment
Two people reported feeling the earthquake. There is no tsunami advisory, and no alert level was issued.
What You Should Know
This minor earthquake, with a magnitude of 3.3, is often felt but rarely causes damage. It is possible for aftershocks to follow such events, so individuals in the area should follow general safety tips like securing furniture and being aware of emergency plans.
Source
Information from the United States Geological Survey (USGS): https://earthquake.usgs.gov/earthquakes/eventpage/aka2026gybiex
Original source: USGS Official Notice ↗
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