美国地质调查局：中大西洋海岭发生 5.4 级地震。

Core Insights - A 5.4 magnitude earthquake occurred at the Mid-Atlantic Ridge, as reported by the United States Geological Survey [1] Group 1 - The earthquake's magnitude was recorded at 5.4, indicating a significant seismic event [1] - The location of the earthquake was specifically at the Mid-Atlantic Ridge, a key geological feature [1] - The event may have implications for geological studies and monitoring in the region [1]