Updated

A series of moderate earthquakes, each measuring magnitude 4.5 to 4.6, struck four countries within a roughly 24-hour span ending October 23, 2026, according to GDACS disaster alerts. Quakes were recorded in Bolivia (2:45am UTC, depth 236km, affecting about 90,000 people within 100km), China (2:17am UTC, depth 10km, affecting about 590,000 people within 100km), Argentina (12:09am UTC, depth 186km, affecting about 2,000 people within 100km), and Chile (9:37pm UTC October 22, depth 142km, affecting about 30,000 people within 100km). All four earthquakes were classified as green-level alerts by GDACS, indicating minimal expected humanitarian impact. No damage, injuries or deaths were reported in connection with any of the quakes.