M 4.7 Light Earthquake Strikes Near 28 de Noviembre, Argentina
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 shallow 4.7 magnitude earthquake was recorded 27 km northeast of 28 de Noviembre, Argentina, on February 11, 2026.
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 Argentina. 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, Argentina.
What Happened
A light earthquake with a magnitude of 4.7 mb occurred on February 11, 2026, at 08:16 UTC. The seismic event was centered approximately 27 km northeast of 28 de Noviembre, Argentina. The earthquake has been reviewed by seismologists at the USGS.
Location Details
The earthquake was recorded at coordinates 51.4357°S and 71.8959°W. The event originated at a depth of 11.5 kilometers. This is classified as a shallow earthquake; shallow quakes (those occurring at depths less than 20 km) are typically felt more strongly than deeper events because the seismic energy is released closer to the surface.
Impact Assessment
At the time of this report, there has been 1 confirmed felt report submitted to the USGS regarding this event. No tsunami advisory, watch, or warning has been issued. There was no specific PAGER alert level color assigned to this event in the source data.
What You Should Know
Earthquakes with magnitudes between 4.0 and 4.9 are classified as "light." While they are frequently felt and can cause noticeable shaking, they typically result in little to no structural damage. Residents in the region should remain aware of the possibility of aftershocks, which are smaller seismic events that follow a larger earthquake. In the event of further shaking, safety experts recommend that you drop, cover, and hold on.
Source
Information and data provided by the USGS Earthquake Hazards Program.
Original source: USGS Official Notice ↗
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