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  • The Shaking Layers tool produces maps of ground shaking minutes after an earthquake of magnitude 3.5 or above has occurred in New Zealand. These maps combine strong motion measurements recorded at seismic stations with ground motion modelling to estimate shaking intensity anywhere in the country. As more data and scientific information become available, Shaking Layers maps are updated and therefore can change over time (from minutes to days to months) following an earthquake. The maps provide information on macroseismic intensity, peak ground acceleration, peak ground velocity and spectral acceleration at several periods. Outputs include a dynamic map (GeoNet website) and several types of outputs on the Shaking Layers webpages, including static maps, json files and GIS layers. Read more about Shaking Layers maps (https://www.geonet.org.nz/about/earthquake/shakinglayers). Science is a collaborative effort. Shaking Layers is a GNS Science (https://www.gns.cri.nz/) product supported by GeoNet (https://www.geonet.org.nz/) and the Rapid Characterisation of Earthquakes and Tsunami (RCET) programme (https://www.gns.cri.nz/research-projects/rcet/). For data access: https://shakinglayers.geonet.org.nz/ For dynamic map access: https://www.geonet.org.nz/earthquake For data format: https://shakinglayers.geonet.org.nz/html/guidelines#input-data For Shaking Layers tool: Horspool, N., T. Goded, A. Kaiser, J. Andrews, J. Groom, D. Charlton, M. Chadwick and J. Houltham (2023). GeoNet’s Shaking Layer Tool: generation of near real-time ground shaking maps for post-event response Proceedings of the New Zealand Society of Earthquake Engineering Technical Conference 2023. Auckland (New Zealand), April 2023, Paper 91, 10 pp. DOI: https://doi.org/10.21420/J856-2J84 Cite as: GNS Science, Shaking Layers Dataset. https://doi.org/10.21420/J856-2J84