South Island & Alpine Fault
The ~600 km dextral strike-slip Alpine Fault ruptures in ~M8 earthquakes roughly every 300 years. Last ruptured in 1717 (estimated M8.1), paleoseismology puts the 50-year conditional probability of a major rupture above 75%. Also site of the 2011 Christchurch (M6.2) and 2016 Kaikoura (M7.8) complex ruptures.
Danger Level (72h)
72-hour composite hazard forecast
Recent Quakes (14d)
Recorded in the selected 14d period
Max Magnitude (14d)
Largest earthquake in the selected 14d period
Tectonic Profile
Seismotectonic hazard assessment, structural exposure & historical context
Click to locate on map
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Living within seismically active radius (~300 km)
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Mixed construction stock with regional engineering standards
Transform / Strike-Slip
Active fault boundary with frequent seismicity
Seismically Stable Period
No significant earthquakes recorded in the selected 14d period.
Seismic Activity
Every recorded earthquake in this area — filter by time range and sort by time or severity.