minecraft-packets/minecraft-packets/data/pc/1.12.2/from-server/world_event/4.json

An easy way to query PrismarineJS/minecraft-packets

{
  "effectId": 1025,
  "location": {
    "x": -232,
    "y": 42,
    "z": 287
  },
  "data": 0,
  "global": false
}