M4.5 Earthquake 40 km WNW of Colonia Dora, Argentina — April 23, 2026
2026-04-23 20:32:18 UTC (3 hours ago)
On April 23, 2026 at 20:32 UTC, a magnitude 4.5 deep-focus earthquake struck 40 km WNW of Colonia Dora, Argentina, at a depth of 570.3 km and coordinates -28.4380°, -63.3248°. This earthquake was detected by 48 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
Earthquake Details
-63.3248°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Colonia Dora, Argentina?
The magnitude 4.5 earthquake that struck 40 km WNW of Colonia Dora, Argentina on April 23, 2026 at 20:32 UTC had a depth of 570.3 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -28.4380°, -63.3248°, which is 40 km WNW of Colonia Dora, 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.