Since <9.4 ka, the Laguna del Maule volcanic field accumulated 62 m of uplift, potentially associated with injection of 13 km(3) into a 7 km deep reservoir. Additionally, an ongoing uplift event started between 2004 and 2007, with an estimated magma recharge of 0.37 km(3). The link between accumulated uplift <9.4 ka and faulting has been documented; however, how the current uplift is accommodated by brittle structures in the basin is not understood. To determine if inflation is causing brittle deformation, we monitored 6 transects on post-glacial lake sediments with high concentration of faults and fractures, over 7 years (2017, 2022-2024). Each year, structure attitude, and opening/offset, were measured. Maximum elongation direction and magnitude were calculated, and 95 % confidence intervals computed via bootstraps. We find that four transects record 0.3 %-7.8 % average elongation oriented NW-SE, and two transects record 0.2 %-0.8 % average elongation oriented NE-SW. No significant changes on elongation direction or magnitude over time are observed, suggesting that only a small portion of the current uplift is translated to horizontal strain. We hypothesize that our findings might be associated with 1) insufficient current horizontal strain has accumulated to overprint the strain signal accumulated since <9.4 ka, or 2) insufficient stress build-up at the surface to cause brittle deformation, which may be released by deeper seismicity, and speculatively, slip on the Troncoso fault.