consecutive occurrences; series of incidents
Used for events, accidents, crimes, or phenomena that happen one after another in a short period. Often appears in news reports.
Traffic accidents have been occurring consecutively in this area.
Residents are anxious about the series of suspicious fires that occurred one after another.
連続 means 'continuation' or 'succession' in general, while 連続発生 specifically refers to consecutive occurrences of events.
多発 means 'frequent occurrence' and emphasizes high frequency, whereas 連続発生 emphasizes the consecutive, back-to-back nature.
Compound of 連続 (consecutive) and 発生 (occurrence). The reading はっせい is the standard rendaku form of 発生 when combined.