The particle action lets you spawn particles to add more detail to your disasters. Heres an example, this will spawn flame particles every 10 ticks 5 times near the starting position:
# This is placed inside an event just like any other action isparticle 1:# * The name of the particle you are spawning (refer to resources for list of all particles)type:'flame'# Will start at the position of where the disaster was originally startedtarget:'startPos'# The amount of the particles to spawn each repeatcount:10# The particles speed value for how fast the particles will movespeed:0.2# The amount of times the particles will repeat and replay themselvesrepeat:5# Tick delay between repeatsintervalTicks:10# Range is the dx, dy, dz function of the particles, the area around the spot that the particles will stretch to in blocksrange:x:5y:2z:3# Location is to make the particles spawn relative to the 'startPos'location:x:~5y:~0z:~5
Here is a list of all the types of particles you can use.