Strong seismic activity has accompanied the deformation at Laguna del Maule, with seismic swarms recorded above the depth of the deforming sill south of the ring of lava domes, with a particular focus around . A magnitude 5.5 earthquake occurred south of the volcanic field in June 2012. A major volcano-tectonic earthquake swarm occurred in January 2013, possibly due to faults and underground liquids being pressurized by the intrusion of magma. Between 2011 and 2014, swarms of earthquakes occurred every two or three months and lasted from half an hour to three hours. Most earthquake activity appears to be of volcano-tectonic origin, with fluid flow inducing a subordinate amount of earthquakes; two intersecting lineaments on the southwest corner of the lake appear to be involved. The 2010 Maule earthquake, west of Laguna del Maule, did not affect the volcanic field, with the rate of uplift remaining unchanged, while other measurements indicate a change in the uplift rates at that point. Some shallow earthquakes have been interpreted as reflecting diking and faulting on the magma chamber; the pressure within the chamber however appears to be insufficient to trigger a rupture all the way between the surface and the chamber and thus no eruption has occurred yet.