An ~90km deep M6.8 quake struck in Chile today. It seems to have originated on the slab interface, according to the USGS Slab2 model. But, the focal mechanism is the opposite of what we would expect. This is unusual. So, it is possible the quake occurred within the Nazca slab.
- Hawaiʻi quake likely related to tectonic plate bending - October 19, 2021
- Opinion: Science communication on trial following White Island disaster - October 15, 2021
- Fluids and tiny minerals play a big role in subduction zones - October 12, 2021