M4.5 Earthquake 6 km N of Mutquín, Argentina — May 20, 2026
2026-05-20 02:34:06 UTC (18 hours ago) · approx. 10:34 PM UTC-4 local
On May 20, 2026 at 02:34 UTC, a magnitude 4.5 shallow crustal earthquake struck 6 km N of Mutquín, Argentina, at a depth of 10.0 km and coordinates -28.2623°, -66.1482°. This earthquake was detected by 33 seismic stations with good 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.
Earthquake Details
-66.1482°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Mutquín, Argentina?
The magnitude 4.5 earthquake that struck 6 km N of Mutquín, Argentina on May 20, 2026 at 02:34 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 -28.2623°, -66.1482°, which is 6 km N of Mutquín, Argentina.
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.
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: us6000syvz). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, May 20, 2026). M4.5 Earthquake 6 km N of Mutquín, Argentina — May 20, 2026. Retrieved May 20, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000syvz/