Figure 2
From: A new method to compile global multi-hazard event sets

Example of how MYRIAD-HESA operates with a time-lag. (a) Two or more hazards are considered a multi-hazard event if they occur at the same location, and at the same time or within each other’s time-lag. Here, there is one hazard group, Event 1, that is encompassed by the black solid line. Event 1 consists of 6 hazard pairs between Hazard 1, 2, 3, and 4 (b) The time-lag is also applied to the separate timesteps of a dynamic hazard. Here, Hazard 1 is a dynamic hazard. Therefore, its polygon at timestep 3 (t3) is a combination of its polygons at timestep 1, 2 and 3, when a time-lag of two timesteps has been applied.