Natural and ecological hazards

The plume ejected by the Hunga Tonga-Hunga Haʻapai volcano in January entered the mesosphere, the layer of atmosphere above the stratosphere, twice during the eruption

Again, thousands of residents in Western Sydney face a life-threatening flood disaster. Obviously, nature is a major culprit – but other drivers are also at play.

The government forecasts that flooding could be as bad as last summer when torrential rain killed hundreds and caused billions in damage.

As the frequency of extreme events increases, so too does the likelihood of 'compound risk' with multiple events coinciding.

The devastating floods that wreaked havoc in Australia’s eastern states and the massive destruction caused by the Black Summer fires have rammed home the terrible cost of extreme weather and its aftermath.   But Australia is not the only nation experiencing wild, dangerous and unprecedented weather. “Dangerous climate change is no longer something we can talk about as being off in the future.  It’s arrived.” Climate scientist, USA On Monday, Four Corners brings you a sobering report from the BBC’s Panorama program that charts increasing extreme weather ‘events’ around the world.

Evacuations have begun on the Azore Island of Sāo Jorge (Sao Jorge) in the Atlantic where more than 12,000 earthquakes have rocked the region in th

Record amounts of smoke from Australia’s 2019-2020 bushfires may have caused changes in the atmosphere that caused a drop in ozone levels, a study suggests.

Aerometrex has produced bushfire fuel load maps of the Adelaide hills, to aid in planning and response.

Tsunami warning center scientists usually measure an earthquake's "size" with the moment magnitude scale rather than the older but more famous Richter magnitude scale. The moment magnitude scale is better suited for measuring the "sizes" of very large earthquakes and its values are proportional to an earthquake's total energy release, making this measurement more useful for tsunami forecasting.Moment magnitude numbers scale such that that energy release increases by a factor of about 32 for each whole magnitude number. For example, magnitude 6 releases about 32 times as much energy as magnitude 5, magnitude 7 about 32 times as much as magnitude 6, and so on.This animation graphically compares the relative "sizes" of some 20th and 21st century earthquakes by their moment magnitudes.

What does its breakage tell us about the problems of getting coverage to remote areas?

Advancements in satellites, drones and AI are driving big changes in firefighting. Experts say a system that can detect bushfires anywhere in Australia within one minute of ignition is just around the corner.

Water levels are at their lowest since 1937.

An investigation by the The Sydney Morning Herald and The Age, including data analysis and digital recreation, has uncovered a series of failures that complicated the evacuation and rescue efforts in Lismore.

Tapping into Indigenous knowledge around water management will offer a far larger data set than is being used, says 2021 NSW Legend of Water David Kirby.

For the full bushfire regeneration story, visit our blog: https://southaustralia.com/travel-blog/bushfire-regeneration

A year on from the devastating fires that burnt almost half of Kangaroo Island (3rd Jan 2020) and 23,000 hectares of the Adelaide Hills (20 Dec 2019), a carpet of green covering the landscape leaves little doubt that the island and hills are bouncing back. Birdsong is deafening, kangaroos and koalas are content, flora is flourishing, and the community is closer than ever. Life has well and truly returned to the bush, and with it the opportunity to experience regeneration at a once-in-a-lifetime scale.

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Right now, Lismore residents are going through their second major flood in a month. On February 28, the devastating first flood peaked at 14.4 metres, fully two metres higher than the previous record of 12.27 metres in 1954, and well above the town's 10-metre-high levee wall, constructed in 2005. Four people died, with 2000 homes destroyed or unlivable of the city's 19,000. Even as Lismore and Northern Rivers residents struggle to recover from the first flood, the floods are coming again. On

A new study combines decades of Landsat and Sentinel-2 imagery with hydrologic and oceanographic data to look at how changes on land affect coastlines in Big Sur, California.

As Australians are reminded of the devastating impact of flooding, drones are adding to the toolkit making our flood prone communities safer.

By following moisture from the oceans to the land, researchers worked out exactly how three oceans conspire to deliver deluges of rain to eastern Australia.

With their ability to capture the birds-eye view of an area. Firefighting goes high-tech and high up, with drones helping to keep us a step ahead,

NASA scientists have been closely watching the evolution of the volcanic island near Tonga since 2015.