Why do the Japanese believe that if 'Doomsday' fish comes to the surface, it means disaster will follow

Recent appearances of the rare oarfish near Baja California Sur, Mexico have ignited discussions on social media. Often called the 'Doomsday Fish,' this creature’s sightings are thought to signal impending natural disasters, although scientists have yet to confirm any definitive link with seismic activities.

Why do the Japanese believe that if 'Doomsday' fish comes to the surface, it means disaster will follow
Recent appearances of the rare oarfish near Baja California Sur, Mexico have ignited discussions on social media. Often called the 'Doomsday Fish,' this creature’s sightings are thought to signal impending natural disasters, although scientists have yet to confirm any definitive link with seismic activities.