The service tracks over 15,000 earthquakes annually in and around New Zealand. It provides location and magnitude within 30 minutes for over 250 significant quakes felt across the region each year. Reporting stations detect events in the southwest Pacific Ocean but do not provide sufficiently accurate readings, so reports are limited to events in or closely adjacent to New Zealand.
The API accepts queries stated in QuakeML (a flavor of XML), KML, or GeoJSON format specifying date range, location boundaries specified by latitude and longitude, and magnitude range. It returns matching reports by reporting station, with epicenter location and magnitude data.