EGU21-273
https://doi.org/10.5194/egusphere-egu21-273
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Love wave or slip wave?

Ranjith Kunnath
Ranjith Kunnath
  • Mahindra University, Ecole Centrale School of Engineering, Department of Mechanical Engineering, India (ranjith.kunnath@mahindrauniversity.edu.in)

A model that explains the anomalies in the Love wave dispersion in the earth is presented. Conventionally, welded contact between the crust and the upper mantle is assumed, leading to Love wave generation when the earth is excited. However, the observations of SH wave dispersion at seismic frequencies is at variance with this model, at least for some crustal plates (Ekström, 2011). When frictional slip occurs at the crust-upper mantle interface, a new type of interfacial elastic wave called the antiplane slip wave can occur (Ranjith, 2017). It is shown that the antiplane slip waves can explain the observed anomalies in the Love wave dispersion. 

How to cite: Kunnath, R.: Love wave or slip wave?, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-273, https://doi.org/10.5194/egusphere-egu21-273, 2020.