A strong and shallow earthquake registered by the USGS as M6.1 hit off the coast of Antofagasta, Chile at 04:15 UTC on July 28, 2022. The agency is reporting a depth of 44.5 km (27.6 miles). EMSC is reporting M6.1 at a depth of 45 km (27.9 miles); CSN Chile M6.2 at a depth of 55 km (34.1 miles).
This is the second M6+ earthquake to hit Antofagasta since M6.2 at 18:58 UTC on July 27.
The epicenter was located 30.5 km (18.9 miles) WNW of Tocopilla (population 24 460) and 186.1 km (115.6 miles) N of Antofagasta (population 309 832), Chile.
8 000 people are estimated to have felt very strong shaking and 19 000 strong.
The USGS issued a Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
Overall, the population in this region resides in structures that are resistant to earthquake shaking, though vulnerable structures exist. The predominant vulnerable building types are adobe block and rubble/field stone masonry construction.
Recent earthquakes in this area have caused secondary hazards such as landslides that might have contributed to losses.
Estimated population exposure to earthquake shaking
Selected cities exposed
Featured image credit: TW/SAM, Google
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