A magnitude 7.5 earthquake struck the Drake Passage, a body of water located between the southern tip of South America and Antarctica, on August 22, 2025. Initial reports from the U.S. Geological Survey (USGS) and other sources had estimated the quake's magnitude as high as 8.2 to 8.3, but it was later downgraded to 7.5. The seismic event occurred near the southern region of Chile and Argentina, including the Chilean Antarctic region. Following the earthquake, the Chilean Hydrographic and Oceanographic Service (SHOA) issued a tsunami alert for the Chilean coast, which was subsequently canceled after further assessment indicated no tsunami risk. The U.S. Tsunami Warning System also reported no tsunami warning. The earthquake prompted precautionary evacuations in coastal areas of Chile, particularly in the Magallanes region. The event raised concerns about potential disruptions to liquefied natural gas (LNG) shipping routes from Peru to Europe and the United States to Chile. Aftershocks, including magnitudes 5.1 and 5.0, were reported in the area. Authorities maintained a state of caution in the affected Antarctic Chilean region following the quake.