A review of tidal triggering of global earthquakes

Examining the Connections Between Earthquake Swarms, Crustal Fluids, and Large Earthquakes in the Context of the 2020–2024 Noto Peninsula, Japan, Earthquake Sequence

“…This is the basis for one of the longest‐recognized and most robust features of seismicity—aftershocks. Earthquakes can also be triggered by non‐seismic processes such as fluid pressure changes (Healy et al., 1968), aseismic slip (Segall et al., 2006), and occasionally the very small stress changes induced by distant earthquakes (Hill et al., 1993) or earth tides (Yan et al., 2023). Understanding earthquake triggering is important—not only because it gives us insight into the earthquake nucleation process, but also because an understanding of earthquake triggering can lead to improved earthquake forecasting.…”

Disposal From In Situ Bitumen Recovery Induced the ML 5.6 Peace River Earthquake

“…By analogy, it is plausible that a similar mechanism could be relevant for the middle and southern clusters. The second piece of evidence comes from estimates of the stress changes at the earthquake centroid from bitumen recovery (Figures S7-S8 and Section S1.6 in Supporting Information S1); this analysis suggests that stress changes from overburden removal and reservoir pressure decline would be (at most) on the order of 0.1-1 kPa, which is similar in magnitude to tidal stressing changes that only have arguable influences on triggering earthquakes (Yan et al, 2022). Typically, Coulomb failure stress changes on the order of 0.1-1 MPa are required to induce slip (Baranova et al, 1999;Ge et al, 2022).…”

Precision Observations for Geodynamics, Earthquakes and Earth Tides Phenomena: Introduction

“…The two papers involving the Paul Melchior medalist B. Ducarme discuss pressure waves in continuous gravity observations (Ducarme, 2022) and optimized processing of tide gauge observations using specialized tidal software originally developed for terrestrial tidal effects (Ducarme et al, 2022). Two papers analyze tidal and non-tidal effects and the associated stresses in relation to the occurrence of earthquakes, including the analysis of slow earthquakes, and discuss the long-standing problem of the tidal triggering of earthquakes (Tanaka et al, 2022;Yan et al, 2022). The frequencies of the Earth normal modes were extracted from a low noise superconducting gravity station located in Gujarat, India.…”