The Antigua and Barbuda Meteorological Service released an official Tsunami Information Statement at 8:45 am AST on Saturday, March 21, 2026, addressing recent seismic activity in the Atlantic region. According to the bulletin, a significant earthquake measuring 6.9 magnitude struck the Northern Mid-Atlantic Ridge at approximately 8:17 am local time. The seismic event originated at a depth of 1 kilometer (0.6 miles), with epicentral coordinates placed at 23.8° North and 45.8° West—approximately 1,818 kilometers (1,130 miles) northeast of Antigua.
Following comprehensive analysis of available seismic data, the Tsunami Warning Centre confirmed no substantial tsunami threat exists for Antigua and Barbuda. However, meteorological authorities acknowledged minimal possibility of minor tsunami waves affecting Atlantic coastal areas nearest to the earthquake’s epicenter.
The national meteorological service emphasized that no immediate action is required for residents or visitors. Officials simultaneously recommended maintaining awareness through official communication channels and using the opportunity to review emergency preparedness protocols. Coastal residents were particularly advised to reaffirm their knowledge of evacuation routes and designated safety zones despite the absence of immediate danger.
The service indicated this would constitute the sole advisory regarding this seismic event unless subsequent data necessitates further updates. The meteorological department encourages continued monitoring of their official broadcasts for any developments.