M 3.4 Earthquake Recorded 70 km North of Culebra, Puerto Rico
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A minor 3.4 magnitude earthquake occurred north of Culebra, Puerto Rico, on February 11, 2026. The intermediate-depth event resulted in no tsunami advisories.
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 Puerto Rico. 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, Puerto Rico.
What Happened
A minor earthquake with a magnitude of 3.36 (md) was recorded on Wednesday, February 11, 2026, at 06:45:52 UTC (02:45:52 local time in Puerto Rico). The seismic event occurred at a depth of 34.44 kilometers.
Location Details
The earthquake was centered approximately 70 kilometers north of Culebra, Puerto Rico, at coordinates 18.9338°N and 65.2282°W. With a depth of 34.44 km, the USGS classifies this as an intermediate-depth earthquake, as it occurred between 20 and 70 km below the surface.
Impact Assessment
At the time of reporting, there have been no felt reports submitted to the USGS. There is no tsunami advisory, watch, or warning in effect for this event. No specific alert level color has been assigned to this routine seismic activity.
What You Should Know
Earthquakes with magnitudes between 2.5 and 3.9 are classified as minor. While these events are often felt by people near the epicenter, they rarely cause damage to structures. Residents in the region should be aware that aftershocks are a common occurrence following seismic activity, though they are typically smaller than the initial event.
Source
Information for this report was provided by the USGS Earthquake Hazards Program.
Original source: USGS Official Notice ↗
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