Te Hiranga Rū QuakeCoREAotearoa New Zealand Centre for Earthquake Resilience

Te Hiranga Rū QuakeCoRE: New Zealand Centre for Earthquake Resilience. It is a Centre of Research Excellence funded by the New Zealand Government.

Using physics-based simulation methods to predict earthquake ground motion for engineering design and assessment.

Ground MotionSimulation + Validation

Ground MotionSimulation + Validation

GROUND MOTION (cm/s)0 96

Using specific featuresof the regional geology, geotechnical conditions, and potential earthquake sources to more accurately predictground shaking.

POTENTIAL M8.6 HIKURANGI FAULT EARTHQUAKE t= 30 sec

AF8 (Alpine Fault magnitude 8), is an award-winning programme of scientific modelling, response planning and community engagement. It exists to understand the impacts a rupture would

have on people living in communities across the South Island and our infrastructure.

TECHNIQUES

COLLABORATION FOR IMPACT

CentralHypocentre

NorthernHypocentre

SouthernHypocentre

MODIFIED MERCALLI INTENSITY(MMI)

INTENSITY OF SHAKING0 10HYPOCENTRE

EPICENTRE

Reference 3

Reference 2

OBSERVATION HISTORY

TYPES OF BUILDINGS

PHYSICS-BASEDMODELLING

NOW

SIMULATED INTENSITY MEASURES FOR FUTURE HOPE FAULT SCENARIOS

PEAK VELOCITY 0 80(cm/s)

Created computer models of

ways that the Hope Fault could rupture. This produced a hazard map to share with Civil Defence groups, local and regional Councils, marae, and others for their preparedness planning.

THEN

3 HYPOCENTRE SCENARIOS FOR THE ALPINE FAULT

igneous, metamorphic,

sedimentary rocks and

derived soils

GEOLOGICAL CONDITIONS

Soil Conditions

SEVERE

FAULT

WEAK

MagnitudeSTRONG

WEAK Bed rock

WEAK

Distance from Fault

Mix of gravel, sand, +

cla

ySTRONG

3 MAIN FACTORS DETERMINEGROUND MOTIONINTENSITY

Illustrating earthquake characteristics and intensity potential for 500 of the highest risk fault lines to Aotearoa New Zealand.

GROUND MOTION SIMULATION ATLAS

S I M U L A T I O N S

WE HAVE PERFORMED

OF POTENTIAL

F U T U R E EARTHQUAKES

ON NZ’S LARGEST SUPERCOMPUTER.

TECTONIC TYPESUBDUCTION

VOLCANICCRUSTAL

Reference 1

Alpine Fault