M4.5 Earthquake 59 km SSW of Topolobampo, Mexico — June 30, 2026
2026-06-30 20:29:39 UTC (3 hours ago) · approx. 1:29 PM UTC-7 local
0Aftershock of the M6.0 mainshock.
On June 30, 2026 at 20:29 UTC, a magnitude 4.5 shallow crustal earthquake struck 59 km SSW of Topolobampo, Mexico, at a depth of 10.0 km and coordinates 25.1100°, -109.2907°.0 This earthquake was detected by 83 seismic stations with moderate location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — 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 6.0 mainshock that occurred 3 hours ago 75 km SSW of El Progreso, Mexico. Since the mainshock, the USGS has recorded 1 aftershocks in this area. Aftershock activity is expected to continue for weeks to months 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 submitted citizen responses 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
-109.2907°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Topolobampo, Mexico?
The magnitude 4.5 earthquake that struck 59 km SSW of Topolobampo, Mexico on June 30, 2026 at 20:29 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 25.1100°, -109.2907°, which is 59 km SSW of Topolobampo, Mexico. View all earthquakes in Mexico.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M6.0 one earlier?
No. This magnitude 4.5 earthquake is an aftershock of the larger magnitude 6.0 mainshock that occurred earlier 75 km SSW of El Progreso, 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 4.5 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: us6000t99v). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, June 30, 2026). M4.5 Earthquake 59 km SSW of Topolobampo, Mexico — June 30, 2026. Retrieved June 30, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000t99v/