M 4.3 Light Earthquake Strikes Near Topolobampo, Mexico
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 4.3 earthquake occurred 83 km south-southwest of Topolobampo, Mexico, at a shallow depth of 10 kilometers on March 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 Mexico. 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, Mexico.
What Happened
A light earthquake with a magnitude of 4.3 (mb) was recorded on March 11, 2026, at 03:28:19 UTC. The seismic event occurred at a shallow depth of 10 kilometers, which is a common characteristic for earthquakes in this region.
Location Details
The epicenter was located at coordinates 24.8718°N, 109.2594°W. This position is approximately 83 kilometers south-southwest of Topolobampo, Mexico. The depth of 10 km is classified as shallow (less than 20 km), a factor that can influence how the energy of the quake reaches the surface.
Impact Assessment
At this time, there are no felt reports associated with this event in the USGS database. There is no tsunami advisory, watch, or warning in effect (tsunami status: 0). No specific alert level color has been assigned to this event, and the data has been reviewed by a seismologist.
What You Should Know
Earthquakes with magnitudes between 4.0 and 4.9 are classified as "light." While they are often noticeable and can cause shaking, they typically result in little to no damage to structures. Residents in the surrounding coastal areas should be aware of the potential for minor aftershocks, though none have been specifically detailed in this report.
Source
Data and attribution provided by the USGS.
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 (1,352 characters here).
Similar severity timing
Same severity (medium) notices issued closest in time to April 6, 2026.
Frequently Asked Questions
Common questions about this USGS earthquake report.