Over the last few decades, dynamic triggering phenomenon has been observed globally in various tectonic environments. Intuitively, when large amplitude seismic waves pass through critically stressed faults, rock failure might happen and cause fault motion, sometimes accompanied by either earthquakes or non-volcanic tremors (NVTs). However, what contributes to different manifestations of dynamic triggering (instantaneous versus delayed, triggered earthquakes versus NVTs, seismic versus aseismic slip, etc.), where and how triggered failure initiates and propagates are still inadequately investigated.
In this Research Topic, we would like to collect new results and advances on observing and modeling dynamic triggering phenomenon, as well as how we can further improve our understanding in earthquake nucleation. This would include thorough observation and analysis of dynamically triggered earthquakes or NVTs; dynamic triggering from numerical simulations and laboratory experiments; as well as dynamic triggering in a broader context of earthquake nucleation. We believe this would serve as a review of new insights in understanding dynamic triggering, and a potential guide for future directions.
Manuscripts discussing/answering the following questions should be submitted:
1. Where do triggered faulting systems respond to dynamic-stress changes and how failures propagate?
2. What conditions contribute to whether aseismic or seismic slip, earthquakes or NVTs could be triggered?
3. What stress conditions and frictional properties would favor and lead to different triggering behaviors, instantaneous versus delayed?
4. Whether and how we can simulate dynamic triggering observations in laboratory experiments?
5. How to quantitively study dynamic triggering, including more candidate metrics other than seismicity rate change, the amount of stress perturbations added on the receiver fault, and how to probe the absolute stress levels on fault?
Over the last few decades, dynamic triggering phenomenon has been observed globally in various tectonic environments. Intuitively, when large amplitude seismic waves pass through critically stressed faults, rock failure might happen and cause fault motion, sometimes accompanied by either earthquakes or non-volcanic tremors (NVTs). However, what contributes to different manifestations of dynamic triggering (instantaneous versus delayed, triggered earthquakes versus NVTs, seismic versus aseismic slip, etc.), where and how triggered failure initiates and propagates are still inadequately investigated.
In this Research Topic, we would like to collect new results and advances on observing and modeling dynamic triggering phenomenon, as well as how we can further improve our understanding in earthquake nucleation. This would include thorough observation and analysis of dynamically triggered earthquakes or NVTs; dynamic triggering from numerical simulations and laboratory experiments; as well as dynamic triggering in a broader context of earthquake nucleation. We believe this would serve as a review of new insights in understanding dynamic triggering, and a potential guide for future directions.
Manuscripts discussing/answering the following questions should be submitted:
1. Where do triggered faulting systems respond to dynamic-stress changes and how failures propagate?
2. What conditions contribute to whether aseismic or seismic slip, earthquakes or NVTs could be triggered?
3. What stress conditions and frictional properties would favor and lead to different triggering behaviors, instantaneous versus delayed?
4. Whether and how we can simulate dynamic triggering observations in laboratory experiments?
5. How to quantitively study dynamic triggering, including more candidate metrics other than seismicity rate change, the amount of stress perturbations added on the receiver fault, and how to probe the absolute stress levels on fault?