The Rangitata Gorge earthquake occurred at 9.15am, 20 September 2023. This was a Magnitude 6.0 earthquake at a depth of 11km. The magnitude and proximity of the quake was large enough for immediate review by the Bounce team - especially for all our customers in the Canterbury region.
GeoNet reported that the quake was centered on the interface between the Ben McLeod Fault and the Lake Heron Fault lines. Located 45km north of Geraldine.
The quake was picked up across many parts of the country with a large number of GeoNet strong motions stations picking up the shaking. The three largest Peak Ground Velocity (PGV) ground movements were recorded at the following GeoNet stations:
The Bounce policy applies a stepped payment structure that allows us to respond to large earthquakes as well as smaller ones as measured by Peak Ground Velocity (PGV), or the extent of ground movement.
The Bounce policy is triggered by an earthquake with a shake intensity measure of at least 20cm per second (using Peak Ground Velocity - PGV) with a full payment made when the ground moves by 30com per second (approximately equivalent to a M6 quake (pending depth and proximity of the quake).