Seismic Knowledge Hub

Earthquakes in Australia & New Zealand

Real information on seismic events, fault science, building compliance, and risk preparedness — researched and written by the SeismicCert editorial team.

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Sydney city skyline with a colour-coded map of Australia overlaid showing different states
Building CodeFeatured

Seismic Compliance Requirements State by State in Australia

While AS 1170.4 is a national standard, seismic compliance enforcement and documentation requirements vary by state. Here's what builders need to know in each jurisdiction.

4 min read12 April 2026
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Suspended ceiling grid system showing seismic bracing wires and restraint clips in a commercial building
Technical Guide

Suspended Ceiling Seismic Bracing Under AS 1170.4: What Builders Need to Know

Suspended ceilings are the most commonly non-compliant element in Australian buildings. Here's what AS 1170.4 Section 8 requires, how bracing is designed, and what certification looks like.

4 min12 April 2026
Project manager reviewing seismic compliance cost estimate spreadsheet in a modern Australian office
Cost Guide

Seismic Compliance Costs in Australia: What Builders Should Budget

Seismic certification costs vary by project size, building class, and complexity. Here's a realistic breakdown of what to expect — and how to avoid the hidden costs of non-compliance.

4 min12 April 2026
Two structural engineers in high-visibility vests reviewing building plans on a construction site
Certification Guide

How to Find an Accredited Seismic Certifier in Australia

Not all structural engineers are authorised to issue seismic compliance certificates. Here's what accreditation means, how to verify it, and how to find the right certifier for your project.

4 min12 April 2026
Structural engineer reviewing seismic hazard map of Australia on a compliance dashboard
Platform Guide

What Is an AS 1170.4 Certification Platform and Do You Need One?

AS 1170.4 certification involves multiple parties, documents, and inspections. A dedicated platform eliminates the coordination overhead and creates a clear audit trail from design to certificate.

4 min12 April 2026
Structural engineer at seismic analysis software next to building surveyor inspecting a completed building
Certification Guide

Seismic Certifier vs. Building Surveyor: Who Does What in Australia?

Builders often confuse the roles of seismic certifiers and building surveyors. Understanding who is responsible for what — and when — prevents costly delays at the permit stage.

4 min12 April 2026
NCC 2022 National Construction Code documents and structural drawings on an architect desk
Building Code

NCC 2022 Seismic Compliance Requirements for Class 2–9 Buildings

NCC 2022 makes AS 1170.4 seismic compliance mandatory for all Class 2–9 buildings. Here's what changed, what it means for builders, and what documentation is required.

5 min12 April 2026
Engineering blueprints and certified compliance documents on a desk overlooking an Australian commercial building
Certification Guide

How to Get a Seismic Compliance Certificate in Australia

A step-by-step walkthrough of the AS 1170.4 certification process — from engaging a structural engineer to receiving your tamper-evident digital certificate.

5 min12 April 2026
The 2016 Kaikōura Earthquake: New Zealand's Most Complex Rupture
NZ Seismicity

The 2016 Kaikōura Earthquake: New Zealand's Most Complex Rupture

The magnitude 7.8 Kaikōura earthquake of November 2016 ruptured at least 21 faults simultaneously — a geological event unprecedented in recorded history. Its lessons are reshaping how scientists model seismic hazard worldwide.

4 min17 March 2026
Adelaide's Underestimated Seismic Risk: The Flinders Ranges Fault System
Historical Event

Adelaide's Underestimated Seismic Risk: The Flinders Ranges Fault System

Adelaide has the highest seismic hazard factor of any Australian capital city, driven by the active fault systems of the Flinders Ranges. The 1954 Adelaide earthquake was a warning that many have forgotten.

4 min10 March 2026
Earthquake Preparedness in Australia: What Buildings and Businesses Need to Know
Risk & Preparedness

Earthquake Preparedness in Australia: What Buildings and Businesses Need to Know

Most Australians have never experienced a damaging earthquake and don't know how to prepare for one. This guide covers what building owners, businesses, and residents should do before, during, and after an earthquake.

4 min3 March 2026
Liquefaction: When the Ground Turns to Liquid
Seismic Science

Liquefaction: When the Ground Turns to Liquid

Liquefaction — the phenomenon where saturated soils temporarily lose their strength during earthquake shaking — caused billions of dollars in damage in Christchurch and remains a critical consideration for building sites across Australia and New Zealand.

4 min24 February 2026
The 1931 Hawke's Bay Earthquake: New Zealand's Deadliest Natural Disaster
NZ Seismicity

The 1931 Hawke's Bay Earthquake: New Zealand's Deadliest Natural Disaster

The magnitude 7.8 Hawke's Bay earthquake of 3 February 1931 killed 256 people and destroyed the cities of Napier and Hastings. It remains New Zealand's deadliest natural disaster and fundamentally changed the country's approach to building safety.

4 min17 February 2026
How Buildings Are Designed to Survive Earthquakes
Seismic Science

How Buildings Are Designed to Survive Earthquakes

Modern earthquake-resistant buildings don't just stand up — they're designed to absorb energy, deform without collapsing, and protect occupants. Here's how structural engineers approach seismic design.

5 min10 February 2026
The Alpine Fault: New Zealand's Most Dangerous Geological Feature
NZ Seismicity

The Alpine Fault: New Zealand's Most Dangerous Geological Feature

The 600 km Alpine Fault runs the length of the South Island and is expected to produce a magnitude 8+ earthquake within the next 50 years. Understanding it is essential for anyone building or working in New Zealand.

4 min3 February 2026
AS 1170.4 Compliance: A Practical Guide for Builders and Certifiers
Building Compliance

AS 1170.4 Compliance: A Practical Guide for Builders and Certifiers

What does AS 1170.4 compliance actually require? This practical guide explains the key concepts — hazard factor, site class, importance level, and structural performance — in plain language for construction professionals.

5 min27 January 2026
The 1968 Meckering Earthquake: Western Australia's Largest Recorded Event
Historical Event

The 1968 Meckering Earthquake: Western Australia's Largest Recorded Event

At magnitude 6.9, the Meckering earthquake is the largest instrumentally recorded earthquake in Australian history. It created a 37 km surface rupture and destroyed the town of Meckering — yet occurred in a region thought to be seismically inactive.

4 min20 January 2026
Understanding Australia's Seismic Hazard: Why "Stable" Doesn't Mean Safe
Seismic Science

Understanding Australia's Seismic Hazard: Why "Stable" Doesn't Mean Safe

Australia is not earthquake-free. Geoscience Australia's probabilistic hazard model reveals significant risk in unexpected locations — and the science behind why intraplate earthquakes can be just as deadly as plate-boundary events.

5 min14 January 2026
Christchurch 2011: The Earthquake That Redefined Urban Seismic Risk
NZ Seismicity

Christchurch 2011: The Earthquake That Redefined Urban Seismic Risk

The 22 February 2011 magnitude 6.2 earthquake killed 185 people and destroyed Christchurch's CBD. Its lessons on liquefaction, building age, and emergency response changed engineering practice across the Pacific.

4 min9 January 2026
The 1989 Newcastle Earthquake: Australia's Costliest Natural Disaster
Historical Event

The 1989 Newcastle Earthquake: Australia's Costliest Natural Disaster

On 28 December 1989, a magnitude 5.6 earthquake struck Newcastle, NSW, killing 13 people and causing $4 billion in damage — reshaping Australian building codes forever.

4 min6 January 2026

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