Markers as beacons with Torque

style.css

Map {
  -torque-frame-count: 2;
  -torque-animation-duration: 2;
  -torque-time-attribute: "t";
  -torque-aggregation-function: "count(1)";
  -torque-resolution: 4;
  -torque-data-aggregation: linear;
}


#layer::halo[frame-offset=1]{
  marker-fill-opacity: 0.5;
  marker-line-color: #F24440;
  marker-line-width: 1;
  marker-line-opacity: 1;
  marker-placement: point;
  marker-type: ellipse;
  marker-width: 7;
  marker-fill: #F24440;
  marker-allow-overlap: true;
}

#layer[frame-offset=1]{
  marker-fill-opacity: 1;
  marker-line-color: #fff;
  marker-line-width: 1;
  marker-line-opacity: 0;
  marker-placement: point;
  marker-type: ellipse;
  marker-width: 1.5;
  marker-fill: #fff;
  marker-allow-overlap: true;
    }

#layer::halo[frame-offset=2]{
  marker-fill-opacity: 0.5;
  marker-line-color: #F24440;
  marker-line-width: 1;
  marker-line-opacity: 1;
  marker-placement: point;
  marker-type: ellipse;
  marker-width: 10;
  marker-fill: #F24440;
  marker-allow-overlap: true;
}

#layer[frame-offset=2]{
  marker-fill-opacity: 1;
  marker-line-color: #fff;
  marker-line-width: 1;
  marker-line-opacity: 0;
  marker-placement: point;
  marker-type: ellipse;
  marker-width: 1.5;
  marker-fill: #fff;
  marker-allow-overlap: true;
    }