thanks for this. Yes I am able to add flashing dots and particle effects on the correct 3d locations using the latitude and longitude.
The problem is each flashing dot needs to start at a specific frame count (an earthquake from 1920 must be before an earthquake from 1960).
Also, the size/color of the flashing dot should be driven by the earthquake magnitude.
Perhaps this is easy to do, but I am not sure how to connect the csv data to the layer start time, and flashing dot size/color.