ground motion simulation 3 hypocentre scenarios for the
TRANSCRIPT
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