tsunami

/tsuˈnɑmi/
noun
  1. A very large, powerful ocean wave caused by an underwater earthquake, volcanic eruption, or landslide, often causing destruction when it reaches land.
    • Scientists monitor seismic activity to predict when a tsunami might form.
    • The 2004 tsunami devastated coastal communities across the Indian Ocean.
    • After the earthquake, a tsunami warning was issued for the entire Pacific coast.
  2. A sudden, overwhelming surge or flood of something (e.g., information, emotions, events).
    • The company faced a tsunami of customer complaints after the product recall.
    • She felt a tsunami of grief when she heard the news.
    • The internet experienced a tsunami of memes after the celebrity's announcement.