Parent Layer: EIL Probability for 500 year PGA

Name: EILD_V2_EILProb256_PGA500

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Description: The earthquake-induced landslide (EIL) probability calculated with the EIL Forecast Tool V2.1 (version 2.1), using Peak Ground Acceleration (PGA) on Soil Class B for the 500 year mean return period. The EIL probability has been calculated at 32 m resolution and aggregated to 256 m resolution using the maximum option, for better display at smaller scales. The grid covers the areas with probabilities in the upper quartile. The quartiles were derived using an EIL probability grid developed without the earthquake PGA variable included in the model. The upper quartile is defined by probabilities greater than 0.000926. The PGA input (earthquake shaking data) used in the EIL Forecast Tool V2.1 has been obtained from the GNS Science's National Seismic Hazard Model (NSHM, 2010). The common V2.1 tool inputs (static data) have been derived from the NZ 8m Digital Elevation Model (LINZ, 2012), and the 1:1 250 000 Geological Map of New Zealand (2nd edition, 2018). For more details about the EIL Forecast tool V2.1 see Massey, C.I.; Lukovic, B. 2023 Earthquake-induced landslide forecast tool for New Zealand: Version 2.1. Lower Hutt, N.Z.: GNS Science. GNS Science report 2023/04.; https://doi.org/10.21420/1ZXA-AB51 and Massey, C.I.; Lukovic, B.; Huso, R.; Buxton, R.; Potter, S.H. 2021 Earthquake-induced landslide forecast tool for New Zealand: version 2.0. Lower Hutt, N.Z.: GNS Science. GNS Science report 2018/08. 77 p.; https://doi.org/10.21420/G2TP9V. Metadata for the EIL Probability dataset is provided at: https://data.gns.cri.nz/metadata/srv/eng/catalog.search#/metadata/b15237a6-78ba-4d54-bf33-33e320a05e46.

Copyright Text: GNS Science

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