Clustering of Upper Plate and Subduction Earthquakes at New Zealand’s Southern Hikurangi Margin | Seismological Society of America

Clustering of Upper Plate and Subduction Earthquakes at New Zealand’s Southern Hikurangi Margin | Seismological Society of America

1 April 2025—More than half of the earthquakes sampled at the subduction interface at the southern Hikurangi margin in Aotearoa-New Zealand cluster in time with earthquakes on three upper plate faults, according to a new analysis. The study published in the Bulletin of the Seismological Society of America will help Aotearoa-New Zealand scientists improve their calculations of seismic risk in the region, said Jade Humphrey of the University of Ca…