Ember attack

5 min read

Embers are the main reason homes and buildings are destroyed in a bushfire. Understand how embers spread fire and the importance of preparing your property so it can withstand an ember attack.

Leaving early is ALWAYS your safest option.

Summary

  • Embers are small pieces of burning twigs, leaves and debris.
  • Embers can start spot fires if they land on dry grass, leaves, mulch or timber.
  • Embers start fires on homes and buildings.
  • Ember-proof your home and remove vegetation and other flammable things from around your buildings.

What are embers?

Embers are small pieces of burning twigs, leaves and debris.

This short animation explains what embers are and how they are able to travel long distances and start new fires.

Why are they so dangerous?

An illustration of a burning tree on the left, with embers in the air heading towards a house on the right.  Three are types of burning embers that are labelled —leaves, sticks, and bark. It shows how they can travel through the air and ignite new fires. Small embers are scattered across the scene, and parts of the house and nearby plants are catching fire.
The wind can carry small burning pieces of leaf, sticks and bark away from the main fire front, threatening homes and other property.

Wind can carry embers a long way from a fire front. On Black Saturday in 2009, embers were carried up to 30 kilometres away from the fire front. The distance they would normally travel is around 10 kilometres.

When carried by the wind, embers can start spot fires when they land on dry grass, leaves, mulch or timber.

Embers are the main reason houses catch fire during a bushfire. They can set fire to your house when they land on your garden, your doormat, or your gutters.

What is an ember attack?

The below video shows what an ember attack looks like during a major bushfire before the flames arrive.

An ember attack is when large numbers of burning embers are carried by the wind and land on or near a building or property.

Embers cause bushfires to spread quickly and unpredictably. It can feel like fires are coming from all directions as spot fires can surround and threaten communities.

This can happen before, during or after the main front of a bushfire passes.

Protect your home from an ember attack

Ember-proof your home

An important part of preparing for bushfire season is ember-proofing your home through fire resistant home improvements, such as:

  • covering any gaps in your roof, walls, door frames
  • using non-combustible materials in your home where possible.

Learn about how you can stop embers easily setting fire to your home

Cut back vegetation

It's also important to remove and reduce vegetation close to your house that could easily catch on fire.

If you live in a rural or regional area, check first, but you might not need a permit to clear trees, branches and scrub from around your home.

Learn more about removing vegetation on your property

Bushfires where embers have travelled the furthest

The furthest we know embers to have travelled was during the Black Saturday fires of 2009. The Churchill fire in South Gippsland produced embers which travelled 23 km from the top of the Strezlecki Range into the Yarram area. On the same day, a fire at Kilmore East sent embers from Mt Disappointment about 35km toward an area north of Healesville.

These distances were reached during some of the most extreme bushfire conditions—45oC and winds of approximately 100 kilometres an hour after a prolonged drought. Topography also played a part with the embers being released from tops of ridges.

 

Page last updated: Wednesday, 16 September 2026 10:01:06 AM

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