Journal of Geophysical Research: Solid Earth

We deployed an array of seafloor pressure gauges in the Izu-Bonin Trench, where subduction is believed to occur largely by aseismic slip We detected two aseismic slip events with rise times of ∼1 h with the resultant moment 17 times larger than the preceding M6.0 earthquake These events are interpreted as those amid the transitional regime between the unstable seismic-slip and stable plate-sliding regimes