Overview

• The USGS recorded the offshore earthquake at 02:16 UTC in the Drake Passage between South America and Antarctica at a depth of about 10.8 km.
• The Pacific Tsunami Warning Center issued a short-lived alert for potential hazardous waves along parts of Chile, and Chile’s navy hydrographic service advised precautions for the Chilean Antarctic territory.
• Authorities reported no widespread tsunami threat for distant regions, with Hawaii confirming no danger and the U.S. National Tsunami Warning Center noting no active threat for Puerto Rico and the U.S. Virgin Islands.
• Magnitude estimates varied across agencies as data were refined, with USGS at 7.5, India’s NCS at 7.4, and Germany’s GFZ at 7.1.
• No immediate damage or casualties were reported, and monitoring continued for aftershocks and sea-level changes after a reported M5.1 follow-on tremor.