Very strong M6.4 earthquake hits Chile-Argentina border region

A strong earthquake registered by the USGS as M6.4 hit the Chile-Argentina border region at 23:38 UTC (20:38 LT) on December 13, 2024. The agency is reporting a depth of 110 km (68 miles). EMSC is reporting the same magnitude and depth. Chile’s National Seismological Center is reporting M6.3 at a depth of 114 km (70 miles).

m6.4 earthquake chile-argentina border region december 13 2024 location map f

Image credit: TW/SAM, Google

The epicenter was located 42 km (26 miles) ESE of Molina (population 28 775), 49 km (30 miles) SE of Curicó (population 102 438), and 70 km (43 miles) E of Talca (population 197 479), Maule, Chile.

17 000 people are estimated to have felt very strong shaking, 150 000 strong and 3 819 000 moderate.

The USGS issued a Yellow alert for shaking-related fatalities and economic losses. Some casualties and damage are possible and the impact should be relatively localized. Past yellow alerts have required a local or regional-level response.

Estimated economic losses are less than 1% of Chile’s GDP.

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 liquefaction that might have contributed to losses.

m6.4 earthquake chile-argentina border region december 13 2024 location map
Image credit: TW/SAM, Google

There are no reports of damage or injuries.

Estimated population exposure to earthquake shaking

m6.4 earthquake chile-argentina border region december 13 2024 usgs epe
Image credit: USGS
m6.4 earthquake chile-argentina border region december 13 2024 usgs epet

Selected cities exposed

m6.4 earthquake chile-argentina border region december 13 2024 usgs sce

Regional seismicity

m6.4 earthquake chile-argentina border region december 13 2024 regional seismicity
Image credit: EMSC

References:

1 M6.4 earthquake Chile-Argentina border region – USGS – December 13, 2024

2 M6.4 earthquake Chile-Argentina border region – EMSC – December 13, 2024

3 M6.4 earthquake Chile-Argentina border region – CSN – December 14, 2024

I'm a dedicated researcher, journalist, and editor at The Watchers. With over 20 years of experience in the media industry, I specialize in hard science news, focusing on extreme weather, seismic and volcanic activity, space weather, and astronomy, including near-Earth objects and planetary defense strategies. You can reach me at teo /at/ watchers.news.

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