Slow Slip Watch

Keep an eye out for slow-slip events or "silent" earthquakes showing up on our GNSS instruments.


Hikurangi Margin slow slip events occur every 1-2 years at a shallow depth (<10km), and last for 2-6 weeks.

-20.0-10.0east (mm)01-Mar-2201-Jun-2201-Sep-2201-Dec-22CNST (Carnagh Station) -5.00.05.0east (mm)01-Mar-2201-Jun-2201-Sep-2201-Dec-22GISB (Gisborne) -20.0-15.0-10.0-5.0east (mm)01-Mar-2201-Jun-2201-Sep-2201-Dec-22KOKO (Kokohu) -40.0-30.0-20.0east (mm)01-Mar-2201-Jun-2201-Sep-2201-Dec-22MAHI (Mahia Peninsula) -50.0-40.0-30.0east (mm)01-Mar-2201-Jun-2201-Sep-2201-Dec-22CKID (Cape Kidnappers) -90.0-80.0east (mm)01-Mar-2201-Jun-2201-Sep-2201-Dec-22PAWA (Pawanui) -130.0-120.0-110.0east (mm)01-Mar-2201-Jun-2201-Sep-2201-Dec-22PORA (Porangahau)
Map of New Zealand.CNSTGISBKOKOMAHICKIDPAWAPORA