In addition, in other typical multi-hazard coupling scenarios, such as earthquakestsunamis and earthquakes-fires, multiple hazard-formative factors would act on the hazard-affected objects sequentially . Many existing methodologies simply divide the equipment into two states: safe and failed, which does not provide a clear insight into the physics of the damage. Thus, a necessary aspect for evaluating equipment damage in sequential multi-hazard coupling scenarios is having a compatible damage scale that can quantify damage produced by the first-acting hazard, and then add the damage produced by the second-acting hazard .