a chain reaction

Translations
цепная реакция
The news of the scandal caused a chain reaction in the media.
Новость о скандале вызвала цепную реакцию в СМИ.
Definitions
A chain reaction is a process in which a single event or action triggers a series of related events or actions, often leading to a significant outcome or result. This term is commonly used in scientific contexts, such as nuclear reactions, as well as in social or economic situations where one event leads to a cascading effect.
Words
a

article or possessive pronoun
некий
chain

adjective
цепная
reaction

noun
реакция