minecraft-packets/minecraft-packets/data/pc/1.9.4/from-server/world_event/5.json

An easy way to query PrismarineJS/minecraft-packets

{
  "effectId": 1025,
  "location": {
    "x": -39,
    "y": 43,
    "z": 258
  },
  "data": 0,
  "global": false
}