The National Seismological Center of the University of Chile recorded a magnitude 4.8 earthquake across the central region of the country at 13:52 local time on the 18th. Scientific instruments positioned the epicenter four kilometers northwest of Farellones, locating the focal depth at 97 kilometers below ground level.
No casualties occurred in Chile.
Seismic monitoring agencies report conflicting magnitude measurements
The United States Geological Survey, recognized internationally as the USGS, calculated an alternative measurement of 5.2 for the subterranean activity, contrasting directly with the initial 4.8 index that Chilean technicians published from their own national monitoring network. Sensor distances and distinct mathematical models applied by each institution explain these numerical discrepancies between monitoring centers. Global institutions evaluate wave propagation under differing computational standards.
While the National Seismological Center of the University of Chile established the tremor at magnitude 4.8 near Farellones, the United States Geological Survey registered a separate intensity of 5.2 on its scale. The depth of 97 kilometers blunted the shock waves before they could damage surface structures.
- National Seismological Center of the University of Chile: magnitude 4.8 and a depth of 97 kilometers
- United States Geological Survey (USGS): magnitude calculated at 5.2
- Official epicenter: four kilometers northwest of Farellones
- Time of occurrence: 13:52 Chilean local time
Emergency agency checks infrastructure in affected mountain zones
Senapred launched technical inspections to verify public safety across zones near the epicenter.
The National Disaster Prevention and Response Service of Chile confirmed that operational teams remain alert to the geological displacement. The institution stated that the agency “continues evaluating the impact on people and damage to infrastructure and basic services, the results of which will be reported through incident or emergency reports.” Public sector technicians monitored transportation links and municipal water networks throughout the mountainous area.
Initial government bulletins confirmed that zero physical destruction reached municipalities bordering Farellones. Established safety protocols in Chile dismissed mandatory evacuation orders for area residents.
Senapred recorded no emergency calls from Farellones.