Source considerations for moderate magnitude earthquake ground motion simulation validation

Simple item page
dc.contributor.authorLee, Robin
dc.contributor.authorBradley, Brendon
dc.contributor.authorGraves, Robert
dc.contributor.authorPaterson, James
dc.contributor.authorMotha, Jason
dc.contributor.authorHuang, Jonney
dc.contributor.authorSchill, Claudio
dc.contributor.authorPolak, Viktor
dc.contributor.authorBae, Sung Eun
dc.date.accessioned2020-12-17T00:05:06Z
dc.date.available2020-12-17T00:05:06Z
dc.date.issued2020en
dc.description.abstractIn New Zealand, previous hybrid broadband ground motion simulation validation efforts were initially focussed on large magnitude (Mw) earthquakes, and more recently on small magnitude earthquakes (3.5<Mw≤5.0). Both regional and nation-wide validation exercises have led to improvements to the Graves and Pitarka (2010,2015) simulation methodology and/or velocity modelling, both crustal and shallow. Naturally, the next step is to consider moderate magnitude earthquakes (5.0<Mw≤6.0) which bridge the gap between previous studies. This study presents preliminary results on the validation of moderate magnitude active shallow crustal earthquakes in New Zealand with emphasis on source modelling considerations. 62 earthquakes are considered with 1726 ground motions across 202 recording stations. The earthquake fault ruptures are kinematically modelled as single plane finite faults given there are no detailed source inversion studies for these events (with few exceptions). The effect of kinematic slip generator, fault dimension aspect ratio and choice of centroid moment tensor nodal plane on the simulated ground motions are examined. The simulations are compared against observed records to quantify their predictive capability for moderate magnitude earthquakes, identify aspects for future improvement and provide insights into the salient ground motion characteristics observed.en
dc.identifier.urihttps://hdl.handle.net/10092/101416
dc.language.isoen
dc.titleSource considerations for moderate magnitude earthquake ground motion simulation validationen
dc.typePostersen
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
POSTER - Lee_Source considerations for moderate magnitude earthquake ground motion simulation validation.pdf
Size:
3.45 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
QuakeCoRE: 2020 Posters