{"help": "https://data.gov.au/data/api/3/action/help_show?name=package_show", "success": true, "result": {"archived": false, "author_email": null, "contact_point": "clientservices@ga.gov.au", "creator_user_id": "c2fbbe4a-4ba0-4945-808b-67454605a4cf", "duplicate_score": 2, "geospatial_topic": [], "id": "dbf6e20a-1469-4f5a-99cb-a6835daa8dcb", "isopen": false, "language": "eng", "license_id": "notspecified", "license_title": "notspecified", "maintainer": null, "maintainer_email": null, "metadata_created": "2025-10-16T23:05:19.402994", "metadata_modified": "2025-10-16T23:05:19.403001", "name": "updating-the-national-seismic-hazard-assessment-philosophy-and-implications", "notes": "Dam owners and operators must consider a range of hazards for the design and maintenance of infrastructure assets \u2013 including seismic hazards. In 2018, Geoscience Australia completed its National Seismic Hazard Assessment (the NSHA). This assessment used best-practice probabilistic approaches and resulted in considerably lower hazard estimates than previously considered applicable for Australia. This assessment, and subsequent site-specific assessments conducted on behalf of the dam industry have yielded divergent estimates in hazard. This has caused confusion and concern amongst the dam engineering community. Herein, we unpack the rationale for these large discrepancies, and identify best practices for the treatment of earthquake catalogues when undertaking probabilistic seismic hazard assessments for extreme-consequence facilities. A short summary of the 2023 update to the NSHA is also provided.\n\nPresented at the 2023 Australian National Committee on Large Dams (ANCOLD) Conference", "num_resources": 4, "num_tags": 6, "organization": {"id": "91f054ec-d0c3-4d42-a89a-5daa2c7a6818", "name": "geoscience-australia-data", "title": "Geoscience Australia Data", "type": "organization", "description": "Harvester for Geoscience Australia Data", "image_url": "", "created": "2025-06-23T12:29:08.024111", "is_organization": true, "approval_status": "approved", "state": "active"}, "original_harvest_source": {"site_url": "https://ecat.ga.gov.au", "href": "https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/updating-the-national-seismic-hazard-assessment-philosophy-and-implications", "title": "Geoscience Australia"}, "owner_org": "91f054ec-d0c3-4d42-a89a-5daa2c7a6818", "private": false, "promotion_level": "0", "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[112.0, -44.0], [154.0, -44.0], [154.0, -9.0], [112.0, -9.0], [112.0, -44.0]]]}", "spatial_coverage": "{\"type\": \"Polygon\", \"coordinates\": [[[112.0, -44.0], [154.0, -44.0], [154.0, -9.0], [112.0, -9.0], [112.0, -44.0]]]}", "state": "active", "temporal_coverage_from": "2025-04-14 06:16:57.873+00", "title": "Updating the National Seismic Hazard Assessment. Philosophy and Implications", "type": "dataset", "unpublished": false, "url": null, "version": null, "extras": [{"key": "harvest_object_id", "value": "2733f88a-217e-4985-8743-96f05830264f"}, {"key": "harvest_source_id", "value": "00080910-39e7-408f-882c-e6e1eb6baadb"}, {"key": "harvest_source_title", "value": "Geoscience Australia"}], "resources": [{"cache_last_updated": null, "cache_url": null, "created": "2025-10-16T23:05:19.404803", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Link to Paper", "format": "HTML", "hash": "", "id": "b7f08678-8409-473e-a4d7-261c5673f01a", "last_modified": null, "metadata_modified": "2025-10-16T23:05:19.395410", "mimetype": null, "mimetype_inner": null, "name": "Link to Paper", "package_id": "dbf6e20a-1469-4f5a-99cb-a6835daa8dcb", "position": 0, "resource_locator_function": "", "resource_locator_protocol": "WWW:LINK-1.0-http--link", "resource_type": null, "size": null, "state": "active", "url": "https://ancold.org.au/product/2023-updating-the-national-seismic-hazard-assessment-philosophy-and-implications/", "url_type": null, "zip_extract": false}, {"cache_last_updated": null, "cache_url": null, "created": "2025-10-16T23:05:19.404806", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Related Record: The 2023 National Seismic Hazard Assessment for Australia. Model Overview", "format": "HTML", "hash": "", "id": "cf7eadcf-a951-4fb2-b498-16ebda00d91c", "last_modified": null, "metadata_modified": "2025-10-16T23:05:19.395547", "mimetype": null, "mimetype_inner": null, "name": "Related Record: The 2023 National Seismic Hazard Assessment for Australia. Model Overview", "package_id": "dbf6e20a-1469-4f5a-99cb-a6835daa8dcb", "position": 1, "resource_locator_function": "", "resource_locator_protocol": "WWW:LINK-1.0-http--link", "resource_type": null, "size": null, "state": "active", "url": "https://dx.doi.org/10.26186/148969", "url_type": null, "zip_extract": false}, {"cache_last_updated": null, "cache_url": null, "created": "2025-10-16T23:05:19.404808", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Related Record: The 2023 National Seismic Hazard Assessment of Australia Rationale for changes in hazard", "format": "HTML", "hash": "", "id": "4e074e0e-e5bd-4373-a0c3-9b0f0989f08c", "last_modified": null, "metadata_modified": "2025-10-16T23:05:19.395648", "mimetype": null, "mimetype_inner": null, "name": "Related Record: The 2023 National Seismic Hazard Assessment of Australia Rationale for changes in hazard", "package_id": "dbf6e20a-1469-4f5a-99cb-a6835daa8dcb", "position": 2, "resource_locator_function": "", "resource_locator_protocol": "WWW:LINK-1.0-http--link", "resource_type": null, "size": null, "state": "active", "url": "https://pid.geoscience.gov.au/dataset/ga/148939", "url_type": null, "zip_extract": false}, {"cache_last_updated": null, "cache_url": null, "created": "2025-10-16T23:05:19.404809", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Related Record: The 2023 National Seismic Hazard Assessment for Australia. Model Input and Output Data", "format": "HTML", "hash": "", "id": "45decd52-4a10-440a-b030-d185b527308c", "last_modified": null, "metadata_modified": "2025-10-16T23:05:19.395745", "mimetype": null, "mimetype_inner": null, "name": "Related Record: The 2023 National Seismic Hazard Assessment for Australia. Model Input and Output Data", "package_id": "dbf6e20a-1469-4f5a-99cb-a6835daa8dcb", "position": 3, "resource_locator_function": "", "resource_locator_protocol": "WWW:LINK-1.0-http--link", "resource_type": null, "size": null, "state": "active", "url": "https://dx.doi.org/10.26186/149177", "url_type": null, "zip_extract": false}], "tags": [{"display_name": "NSHA", "id": "af4de9fa-d808-4f22-955b-9acc4c0d6c40", "name": "NSHA", "state": "active", "vocabulary_id": null}, {"display_name": "Published_External", "id": "5178775c-8044-4b7f-881f-5428a4e2d925", "name": "Published_External", "state": "active", "vocabulary_id": null}, {"display_name": "Seismology and Seismic Exploration", "id": "25911783-144c-461c-863e-ae591fa7638a", "name": "Seismology and Seismic Exploration", "state": "active", "vocabulary_id": null}, {"display_name": "earthquake catalogue", "id": "35382b07-268f-4c70-a281-3dfdd340be60", "name": "earthquake catalogue", "state": "active", "vocabulary_id": null}, {"display_name": "seismic hazard", "id": "a0887df0-929c-4637-8951-02bb35c9d385", "name": "seismic hazard", "state": "active", "vocabulary_id": null}, {"display_name": "seismic hazard assessment", "id": "20a91d12-1822-40f5-874d-55b459aecd58", "name": "seismic hazard assessment", "state": "active", "vocabulary_id": null}], "groups": [], "relationships_as_subject": [], "relationships_as_object": []}}