M 4.2 Earthquake 33 km SSW of Segundo, Colorado
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A magnitude 4.2 ml earthquake occurred 33 km SSW of Segundo, Colorado, at a shallow depth of 6.2 km.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on July 6, 2026 and geographically references 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 4.2 ml earthquake struck 33 km SSW of Segundo, Colorado, on June 5, 2026, at 12:01 UTC. The event was recorded at a depth of 6.217 km.
Location Details
The earthquake was centered at latitude 36.8335, longitude -104.8326. This places it in southern Colorado. The shallow depth of 6.217 km is classified as shallow (less than 20 km).
Impact Assessment
The earthquake was felt by 2 people, with a maximum reported intensity (CDI) of 2.2. No tsunami was generated (tsunami advisory status: 0). No alert level was issued.
What You Should Know
Earthquakes of this magnitude (M 4.0-4.9) are typically noticeable but cause little to no damage. Residents should be prepared for possible aftershocks and follow standard earthquake safety practices such as dropping, covering, and holding on during shaking.
Source
Data from USGS: https://earthquake.usgs.gov/earthquakes/eventpage/us6000tadn
Original source: USGS Official Notice ↗
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