M 3.3 Earthquake Strikes 17 km NW of 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 ml earthquake occurred 17 km northwest of Susitna, Alaska, at a depth of 69.9 km.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on August 8, 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 3.3 ml earthquake occurred at 17 km NW of Susitna, Alaska. The event took place at 2026-07-20 12:36:37 UTC (timestamp 1784519797359). It registered a magnitude of 3.3 on the ml scale.
Location Details
The earthquake was located at coordinates 61.644 latitude, -150.755 longitude, with a depth of 69.9 km. This depth classifies as intermediate (20-70 km). The epicenter was 17 km northwest of Susitna, Alaska.
Impact Assessment
The earthquake was felt by 3 people, with a maximum reported intensity (CDI) of 2. No tsunami advisory was issued (tsunami status: 0). 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 in the area should be aware of the possibility of aftershocks.
Source
Data from USGS: https://earthquake.usgs.gov/earthquakes/eventpage/aka2026ofsgvh
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 (901 characters here).
Similar severity timing
Same severity (low) notices issued closest in time to August 8, 2026.
Frequently Asked Questions
Common questions about this USGS earthquake report.