M 4.5 earthquake near 48 km S of Castro Barros, Argentina.
A magnitude 4.5 earthquake occurred 48 kilometers south of Castro Barros, Argentina, which is a moderate-sized seismic event that can be felt by people in the area and may cause minor damage to buildings. Earthquakes of this magnitude are monitored by scientists to better understand the region's geological activity and to help communities prepare for more serious seismic hazards.
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