erupted
v.v. to break out or start suddenly and with a lot of force. You use this for volcanoes, but also for people who suddenly start shouting or laughing.
v. to break out or burst forth suddenly and violently from a state of restraint or calm. Often describes geological events, the sudden onset of conflict, or spontaneous vocal expressions from a crowd.
The crowd erupted in cheers when the goal was scored.
After years of quiet tension, the long-dormant volcano erupted, forcing thousands of local residents to evacuate their homes.
The peaceful protest suddenly erupted into chaos as small groups began clashing with security forces, leading to a city-wide curfew that lasted for several days.
Often used with the preposition 'in' for emotional reactions or 'into' for a change in state.