US Geological data and an article about Thursday's earthquakes.
For those interested this is a list of the earthquakes off of New Zealand 4th March 2021. This was produced using an earthquake csv file downloaded from US Geological Survey. Click to enlarge. Sorry it's not very clear but perhaps it gives some idea of the activity.
Here is a link to the USGS article which addresses the three main earthquakes.
Kermadec and New Zealand Earthquakes
Release Date: MARCH 4, 2021
Three notable earthquakes struck in the southern Pacific Ocean near the Kermadec Islands and New Zealand today, March 4, 2021.