M 3.7 Minor Earthquake Recorded Near Calumet, Oklahoma
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A magnitude 3.7 earthquake struck Central Oklahoma on February 17, 2026, centered 9 km east-northeast of Calumet at a shallow depth of 1.3 km.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on April 6, 2026 and geographically references Central Oklahoma. 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, Oklahoma.
What Happened
A minor earthquake with a magnitude of 3.65 (ml) occurred near Calumet, Oklahoma, on February 17, 2026, at 04:13:35 UTC. For local residents, the event took place at 10:13 PM CST on February 16, 2026. The seismic event was automatically recorded by the USGS and local monitoring networks.
Location Details
The epicenter was located at coordinates 35.6263°N, 98.0234°W, approximately 9 km (5.6 miles) east-northeast of Calumet. The earthquake originated at a very shallow depth of 1.27 km. Seismic events at depths of less than 20 km are considered shallow and are often felt more intensely by people directly above the epicenter than deeper quakes of the same magnitude.
Impact Assessment
According to the USGS "Did You Feel It?" service, 3 people reported feeling the tremor shortly after it occurred, with a Community Decimal Intensity (CDI) of 4.6. There is no tsunami advisory associated with this inland event, and no alert level color was assigned in the source data. No damage to infrastructure or injuries have been reported.
What You Should Know
Earthquakes with magnitudes between 2.5 and 3.9 are classified as minor. These events are routine geological occurrences that are often felt but rarely cause significant damage. Residents in the area may experience light shaking. While aftershocks are possible following any seismic activity, they are typically smaller than the initial event.
Source
Information provided by the USGS Earthquake Hazards Program.
Original source: USGS Official Notice ↗
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