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We explore the possibility that the episodics warm activity observed in the region around Talala is related to a poroelastic response of the seismogenic crust to surface water flux, leading to pore pressure changes at depth. In particular, we evaluate models where these pore-pressure changes result from rainfall-induced ground-water recharge with corresponding pore pressure diffusion into depth and reservoir-induced pressure changes related to two dams located around 10km from the swarm region. Based on the observed reservoir and rainfall data, we estimate the time-dependent pressure variations in the active seismogenic volume and calculate the resulting seismicity rates assumingrate- and state-dependent frictional nucleation. Our results show that porepressure variations can well explain the general observations, with highest correlations for the reservoir-triggering mechanism. However, the latter model requires unrealistically small values of effective normal stresses in the source region unless pore-pressure diffusionis guided by a highly permeable fracture zone
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