Generate Coordinates, you should change the -68 -38 and min max of your coordinates city

coordinatesGenerator

function pad (str, max) {
  str = str.toString();
  return str.length < max ? pad("0" + str, max) : str;
}

function rand(min,max)
{
    return Math.floor(Math.random()*(max-min+1)+min);
}

var arr = []

for (var i = 0; i < 1500; i++) {
    arr.push(
      {
        id: i,
        coord: {
          lat: parseFloat("-38."+pad(rand(9365,9691),4)),
          lng: parseFloat("-68."+pad(rand(342,1185),4))
        },
        tipo: ["secuestro","hurto","estafa","asesinato"][rand(0,3)]
      }
    )
}

console.log(arr)