Disasters

The frequency of natural disasters over the past two decades is almost double that of the 1980-1999 period, a new report from the UN has revealed, with extreme weather events driven by climate change accounting for a large portion of the uptick.

Toyota and Honda recently started testing a fuel-cell bus designed as a mobile power source for disaster relief. Now Nissan has driven out an emergency response vehicle based on its Leaf electric car that will also provide emergency power.

When disaster strikes, the power often goes out, and it may be a good while before it's restored. Toyota and Honda start testing the Moving e system this month, a fuel cell bus designed to serve as a mobile power source for disaster relief.

Searching for sources of potentially harmful radiation isn't a job that most people would want – so why not get a drone to do it? Well, a team of Czech engineers is currently developing just such an aircraft.

Despite raising the alert level weeks prior to the devastating events of Monday, the violent eruption on White Island was not one authorities were able to predict with any precision, owing to the type of delicate, steam-driven processes that led to its explosion.

Among the proposed uses for drones, one of the most compelling is the search for survivors at disaster sites. That process could soon be more efficient, thanks to a system that allows drone cameras to differentiate between living and dead bodies.

A field study of the deadly 2014 landslide in Washington State is providing new insights into how such large-scale slides operate. A team from the US Geological Survey did detailed measurements and sampling of the post-disaster site, allowing them to build a detailed timescale of the event.

The unusually cold year of 1816 has been linked to one of the most powerful volcanic eruptions in recorded history, and now we may know how. A new paper explains how electrified ash from the eruption could have “short-circuited” the Earth’s ionosphere and triggered the “Year Without A Summer.”

A new robot centaur is capable of aiding in disaster situations and has a mean karate chop. Called Centauro, the 1.5-m-tall (5 ft), 93-kg (205-lb) robot combines two arms with four legs in a robust construction to give it both dexterity and stability while dealing with harsh environments.

​Agile robots could certainly come in handy for tasks such as locating victims at disaster sites, which is why we've seen ones that hop, sidewind and "swim" across uneven terrain. One of the latest, developed at Israel's Ben-Gurion University, crawls and sprawls.

Aarchaeologists excavating a new site in Pompeii have uncovered a new victim of the disaster, who has quite a story to tell. The skeleton was found with its head crushed beneath a huge stone block that was thrown by the force of the volcanic cloud.

​In the aftermath of a disaster such as an earthquake, it's of the utmost importance to quickly find live victims buried under the rubble. A new device, created by a team led by ETH Zurich's Prof. Sotiris E. Pratsinis, could make doing so cheaper and easier than ever.