M4.8 Earthquake 14 km S of Santo Domingo Armenta, Mexico — March 28, 2026
2026-03-28 15:02:06 UTC (2026-03-28) · approx. 8:02 AM UTC-7 local
Felt by 1 person across nearby locations. Aftershock of the M5.5 mainshock.
On March 28, 2026 at 15:02 UTC, a magnitude 4.8 shallow crustal earthquake struck 14 km S of Santo Domingo Armenta, Mexico, at a depth of 10.0 km and coordinates 16.2041°, -98.3887°. This earthquake was detected by 181 seismic stations with good location accuracy and was assigned a USGS significance rating of 355, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.
This earthquake is part of an ongoing aftershock sequence following the magnitude 5.5 mainshock that occurred 11 days ago 0 km SW of San Juan Jicayán, Mexico. Since the mainshock, the USGS has recorded 1 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
The epicenter is located in Mexico, a region characterized by the Middle America Trench, where the Cocos Plate subducts beneath the North American Plate. The nearest mapped fault system is the Middle America Trench. View all earthquakes in Mexico.
Learn more: Magnitude scale · Aftershock sequences
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-98.3887°E
Technical Information
Common Questions
How strong was the magnitude 4.8 earthquake near Santo Domingo Armenta, Mexico?
The magnitude 4.8 earthquake that struck 14 km S of Santo Domingo Armenta, Mexico on March 28, 2026 at 15:02 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 16.2041°, -98.3887°, which is 14 km S of Santo Domingo Armenta, Mexico. View all earthquakes in Mexico.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M5.5 one earlier?
No. This magnitude 4.8 earthquake is an aftershock of the larger magnitude 5.5 mainshock that occurred earlier 0 km SW of San Juan Jicayán, Mexico. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
Has Mexico had earthquakes this big before?
The largest recorded earthquake in Mexico was the M8.1 Chiapas earthquake of September 8, 2017. Today's magnitude 4.8 event is significantly smaller than that historical record.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Authoritative source: USGS event page (event ID: us7000s8dk). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, March 28, 2026). M4.8 Earthquake 14 km S of Santo Domingo Armenta, Mexico — March 28, 2026. Retrieved May 16, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000s8dk/