###### Abstract  
In the paper, an advanced model of spatiotemporal mining-induced kinematic excitation (SMIKE) for multiple-support bridges exposed to mining-induced seismicity is proposed. The uniqueness of this model results from the possibility of its application in any region of mining activity, as it is based on empirical regression functions characterizing such regions. In the model, the loss of coherency resulting from the scattering of waves in the heterogeneous ground, the wave-passage effect originating in different arrival times of waves to consecutive supports, and the site-response effect depending on the local soil conditions are taken into account. The loss of coherency of mining-induced seismic waves is obtained by applying a random field generator based on a spatial correlation function to produce time histories of accelerations on consecutive structure supports based on an originally recorded shock. The deterministic approach is used to account for temporal wave variability. The proposed SMIKE model is applied to assess the dynamic performance of a five-span bridge under a mining-induced shock recorded in the Upper Silesian Coal Basin (USCB), Poland. The first model's parameter (space scale parameter) is identified on the basis of regression curves defined for the USCB region. The estimation of the second parameter (the mean apparent wave passage velocity) is based on discrete experimental data acquired via the vibroseis excitation registered in the in situ experiment. The impact of the model application on the dynamic performance of the bridge is assessed by comparing the dynamic response levels under SMIKE excitations, classic uniform excitations, and the \"traveling wave\" model--accounting only for the wave passage effect. The influence of wave velocity occurs to be crucial, modifying (either amplifying or reducing, depending on the location of the analyzed point) the dynamic response level up to a factor of two. The introduction of the space scale parameter changes the results by 20% in relation to the outcomes obtained for the \"traveling\" wave only. b 2022 20220111 July 202211 July 202212 July 2  
in mining-induced tremors may play a crucial role in the design and maintenance of structures [5; 6; 7] located in areas of mining activity. Noting the growing interest in the subject, it can be concluded that most publications consider residential buildings in areas of induced seismicity. Considerably fewer authors deal with non-typical constructions, such as large-dimensional structures with lengths comparable to those of shock waves. In the case of the dynamic analysis of such structures, the spatial variability of earthquake ground motions (SVEGM) [8] should be taken into account, as spatially varying ground motion, in terms of both amplitude and frequency, may play a key role in their dynamic performance. In the case of multiple-support structures, the SVEGM effect causes each of the supports to be subject to a different movement at a given time instance [9]. The authors of dynamic analyzes usually assume that the movement of the structure supports is the same. However, in the case of multi-support constructions, a simplification such as the omission of the space-time complexity of the excitation may lead to inaccurate approximations and even errors, including non-conservative results that do not ensure the safety of the structure [10; 11]. The vast majority of multiple-support structures studies refer to a bridge's response to natural seismic shocks [12; 13; 14; 15; 16; 17; 18]. The authors listed the following four reasons for the spatial variability of earthquake ground motion that are taken into consideration during dynamic analyses: wave passage, incoherence, attenuation, and the site effect. They presume models of kinematic excitation that include all or some of the above-mentioned effects. Usually, taking into account the SVEGM effect leads to a dynamic response level decrease, as the average ground motion amplitudes affecting the structure's supports are reduced.