Stable sovereign bond markets are crucial to a well-functioning economy and financial system. But despite the importance of amplifications of sovereign bond market tensions related to flights-to-safety and sudden liquidity contractions, there is little direct empirical evidence of the transmission channels through which such catalysts for amplification operate. This column documents significant own- and cross-market interdependencies between liquidity and tail risks that amplify shocks likely attributable to economic fundamentals. The findings demonstrate the potential for the provision of liquidity across sovereign markets to be vulnerable to sudden fractures, with possible implications for euro area economic and financial stability.