A tsunami evacuation route is signposted in the southern Chilean city of Punta Arenas after a major 7.5-magnitude earthquake struck in the Drake Passage, the body of water separating South America ...

A strong offshore earthquake caused a tsunami scare in the far south of Chile and Argentina on Friday, with authorities evacuating residents of coastal areas for hours before scaling back the ...

Finally, assuming that the frequency–magnitude distribution of megathrust seismicity follows the Gutenberg–Richter law and considering that 50% of the transient slip on the megathrust is aseismic, we ...