発生

1. Origins, structure, and basic meaning

• Structure: Spelling: 発生. Reading: はっせい. Core meaning: occurrence; outbreak.
• Basic usage: Representative examples: 大雨の後、山道で土砂崩れが発生した / 機械から異常な音が発生している.

2. Common pitfalls and similar expressions

• Events and phenomena arising
  • 発生する can describe an event such as a landslide or a phenomenon such as a sound arising from a machine. It does not necessarily imply deliberate production by an agent.