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We exploit more than 1000 star cluster Monte Carlo models from theMOCCA-SURVEY Database I, to infer the local rate density of white dwarf (WD)tidal disruption events (TDEs) in globular clusters (GCs) and young massiveclusters (YMCs). We suggest that the WD TDE rate for GCs and YMCs in the localuniverse is $\sim 90$-$500~{\rm yr}^{-1}~{\rm Gpc}^{-3}$, with 90 % of WD TDEsoccurring in GCs. The total WD TDE rate density is $\sim 9$-$50$ times largerthan estimated before. Our results show that thermonuclear explosions inducedby WD TDEs can be observed at a rate of $\sim 100$-$550~{\rm yr}^{-1}$ by thenext generation optical surveys, such as the Legacy Survey of Space & Time bythe Vera C. Rubin Observatory. We also find that massive WDs are preferentiallydisrupted due to mass segregation, and that 20 % of exploding WDs have $\gtrsim1.0 M_\odot$ despite of the small population of such WDs.

MOCCA-SURVEY Database -- I. Tidal disruption events of white dwarfs in globular clusters and young massive clusters