M 4.0 Earthquake Strikes 17 km SSW of Weston, Colorado
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 4.0 earthquake occurred 17 km south-southwest of Weston, Colorado, at a depth of 8.7 km on June 28, 2026, at 12:44 UTC.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on May 7, 2026 and geographically references Southern Colorado. 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, Colorado.
What Happened
A magnitude 4.0 mwr earthquake struck 17 km SSW of Weston, Colorado, at a depth of 8.7 km. The event occurred on June 28, 2026, at 12:44 UTC.
Location Details
The earthquake was located at coordinates 36.9854° N, 104.9295° W, near Weston, Colorado. This shallow depth of 8.7 km means the earthquake is more likely to produce noticeable shaking at the surface compared to deeper events.
Impact Assessment
The earthquake was felt by 7 people, as reported. There is no tsunami advisory, and no alert level was issued.
What You Should Know
This light earthquake may result in noticeable shaking and possible light damage to structures. Aftershocks are possible, and general safety tips include staying informed and following local guidelines for earthquake preparedness.
Source
Information from the United States Geological Survey (USGS): https://earthquake.usgs.gov/earthquakes/eventpage/us6000svzn
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 (987 characters here).
Similar severity timing
Same severity (medium) notices issued closest in time to May 7, 2026.
Frequently Asked Questions
Common questions about this USGS earthquake report.