M4.2 Earthquake 51 km S of Ciudad Lázaro Cárdenas, Mexico — July 9, 2024
2024-07-09 17:51:36 UTC (2024-07-09) · approx. 10:51 AM UTC-7 local
On July 9, 2024 at 17:51 UTC, a magnitude 4.2 shallow crustal earthquake struck 51 km S of Ciudad Lázaro Cárdenas, Mexico, at a depth of 10.0 km and coordinates 17.5130°, -102.1472°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-102.1472°E
Technical Information
Common Questions
How strong was the magnitude 4.2 earthquake near Ciudad Lázaro Cárdenas, Mexico?
The magnitude 4.2 earthquake that struck 51 km S of Ciudad Lázaro Cárdenas, Mexico on July 9, 2024 at 17:51 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000my3g). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, July 9, 2024). M4.2 Earthquake 51 km S of Ciudad Lázaro Cárdenas, Mexico — July 9, 2024. Retrieved September 20, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000my3g/