outburst

[1]	outbreak , effusion , gush , eruption , explosion , blowup , ebullition , blow-up , flare-up , fulmination , upsurge , surge , outpouring , welling (forth) , upwelling , outflow(ing) , rush , flood , effusion , effluence/efflux , fit , access , attack , spasm , paroxysm , seizure , tantrum
[2]	burst , flare-up
[3]	tumultuous disturbance