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Atlantic Ocean experiences twin earthquakes of magnitude 6.7 and 6.8
Two powerful earthquakes with magnitudes of 6.7 and 6.8 struck the Atlantic Ocean on Tuesday, October 13, 2026. According to the United States Geological Survey (USGS), both epicenters were located along the Mid-Atlantic Ridge at a depth of approximately 10 kilometers.
The first tremor occurred at 05:44 UTC, followed by the second magnitude 6.8 event roughly six hours later at 12:23 UTC. Both seismic activities took place in a region where the ocean floor is spreading due to tectonic plate movement. Because the events occurred far from populated areas, no casualties or material damages have been reported.
Geophysicist Stefan Burns has characterized the sequence as a “doublet,” noting that the proximity and magnitude of the quakes warrant significant attention. Burns suggested the events might be part of a larger seismic chain reaction involving the redistribution of stress between the African, South American, and potentially the North American tectonic plates. While scientific studies, including research from the University of California, Berkeley, show that major quakes can influence faults thousands of kilometers away, the USGS maintains that earthquakes cannot be predicted with precision or long-term advance notice.
Entities
Atlantic Ocean · Mid-Atlantic Ridge · Stefan Burns · United States Geological Survey