Hazards for IB DP Geography

By Richard Allaway | For all IB DP Geography students and educators! #ibgeog11 -  'Hazards and Disasters - Risk Assessment and Response' + #ibgeog19 - Geophysical hazards

Hawaii's Kilauea: Explosive eruption at volcano

<b>An explosive eruption at Hawaii’s Kilauea volcano has sent ash 30,000ft (9,100m) into the sky.</b><p>The eruption took place at 04:15 local time (14:15 GMT) on Thursday, and scientists say further activity is likely in the near future.<p>Staff at the volcano observatory and the national park had been …

Natural Disasters

How effective are earthquake early warning systems?

<b>Earthquake early warning detection is more effective for minor quakes than major ones.</b><p>This is according to a new study from the United States Geological Survey.<p>Seismologists modelled ground shaking along California's San Andreas Fault, where an earthquake of magnitude 6.5 or more is expected within …

Mount Etna is 'sliding towards the sea'

<b>Europe's most active volcano, Mount Etna, is sliding towards the sea.</b><p>Scientists have established that the whole structure on the Italian island of Sicily is edging in the direction of the Mediterranean at a rate of 14mm per year.<p>The UK-led team says the situation will need careful monitoring …

Worried about being on top of an earthquake fault? New California maps will let you know on a smartphone

It’s now way easier to find out if you live in a California earthquake fault zone.<p>The California Geological Survey has published an easy-to-use interactive map online — type in your address or share your location on your smartphone, and, <i>voila,</i> you’ll know if you stand in a fault zone.<p>Or, for that …

Fukushima 360: walk through a ghost town in the nuclear disaster zone – video

What happens to a town that has been abandoned for seven years after a nuclear meltdown? Greenpeace took former residents and a 360-degree camera into the radiation zone north of Fukushima to mark the anniversary of the disaster. The Fukushima Daiichi plant was damaged by a tsunami triggered by a …

Fukushima

Huge oil spill left after burning tanker sinks off China

<b>Chinese ships are racing to clean up a giant oil spill after an Iranian tanker sank in the East China Sea.</b><p>The 120 sq km (46 sq mile) oil slick is thought to be made up of heavy fuel that was used to power the vessel.<p>The Sanchi oil tanker sank on Sunday and officials say all its crew members are …

California: Thirteen dead in Montecito rains and mudslides

<b>At least 13 people are dead amid "waist-deep" mudslides in Southern California, where heavy rains triggered flooding, say officials.</b><p>Some 163 people have been taken to hospital. Twenty had "storm-related injuries" and four were critically hurt.<p>A group of up to 300 people are reportedly trapped in …

Weather

California wildfires: Governor brands fires 'new normal'

<b>Devastating wildfires fuelled by climate change are "the new normal", California's governor has said.</b><p>Jerry Brown said vast fires, such as the ones that have ravaged southern California in recent days, "could happen every year or every few years".<p>"We're facing a new reality in this state," he said. …

Atlas of the Underworld | van der Meer, D.G., van Hinsbergen, D.J.J., and Spakman, W., 2018, Atlas of the Underworld: slab remnants in the mantle, their sinking history, and a new outlook on lower mantle viscosity, Tectonophysics 723, p. 309-448

<b>Version: 1.1 (update log)</b><p>Welcome to the website of The Atlas of the underworld – the first complete mapping of subducted plates in the Earth’s mantle …

Hurricanes: A perfect storm of chance and climate change?

<b>The succession of intense and deadly tropical cyclones that have barrelled across the Atlantic in recent weeks have left many people wondering if a threshold of some sort has been crossed. Is this chain of hurricanes evidence of some significant new frontier in our changing climate?</b><p>The answer is …

Hurricane Maria: Puerto Rico may be months without power

<b>Hurricane Maria has knocked out power across the island of Puerto Rico, home to 3.5m people, officials have said.</b><p>Flash flood warnings cover the entire island, which continues to be lashed by heavy rain in the storm's wake.<p>Meanwhile more pictures are emerging of widespread destruction on the small …

Mexico quake: A visual guide

<b>Rescue workers are searching for survivors days after a devastating earthquake hit central Mexico killing more than 273 people.</b><p>The 7.1 magnitude quake brought down dozens of buildings in the capital, Mexico City, including a school, leaving many children dead.<p>Rescuers are using hand signals to …

At least 217 dead after powerful quake hits Mexico – as it happened

Mexico earthquake: rescue crews search for survivors as death toll rises – live<p>Read more<p>A powerful 7.1-magnitude earthquake struck southern Mexico on Tuesday, in Puebla state, 123km from Mexico City.<br>• At least 217 people have been killed, including 86 in Mexico City, 71 in Morelos and 43 in Puebla …

Natural Disasters

Mexico: Huge earthquake topples buildings, killing more than 200

<b>A strong earthquake has struck central Mexico, killing more than 200 people and toppling dozens of buildings in the capital, Mexico City.</b><p>At least 30 people, mostly children, died after a school collapsed in the capital, local media report.<p>The 7.1 magnitude quake also caused major damage in …

Typhoons, cyclones and hurricanes: how these weather systems form

As recovery begins on the islands of the Caribbean and Florida braces itself for an onslaught, Irma has stormed into the record books as the most powerful hurricane ever recorded in the Atlantic Ocean.<p>But such weather systems are far from a rarity. Hurricanes are a type of storm known as a tropical …

Weather

Mexico's strongest quake in a century strikes off southern coast

<b>An earthquake described by Mexico's president as the country's strongest in a century has struck off the southern coast, killing at least 36 people.</b><p>The quake, which President Enrique Peña Nieto said measured 8.2, struck in the Pacific, about 87km (54 miles) south-west of Pijijiapan.<p>Oaxaca and …

Hurricane Irma: Caribbean braces for 'extremely dangerous' storm

<b>Hurricane Irma has been upgraded to a category five - the highest category - making it "extremely dangerous" as it crosses the Caribbean.</b><p>Irma now has sustained winds of 290km/h (180mph), making it the most powerful the Atlantic has seen in over a decade.<p>It is projected to bring storm surges, …

Flooded toxic dumps pose threat to Texas communities hit by Harvey

For 10 years, Elizabeth Victorio has lived in a small community on the outskirts of Crosby, about 45 kilometres northeast of Houston. All that time, …

Why Houston is under water: Harvey's destruction explained

When Hurricane Harvey slammed into Texas on Friday, it came with dire warnings about rainfall and the potential for severe flooding.<p>But it's likely …

This is Houston. Then and now.

<b>(CNN) —</b> Tropical Storm Harvey tore through Houston, dumping record rain, swelling bayous and leaving the nation's fourth-largest city under water. It will take a while for the full extent of the devastation to become clear. But these photographs capture what the vibrant city looked like before -- …

Extreme Weather

Houston floods: 'Catastrophic' flooding from Harvey to worsen

<b>"Catastrophic" flooding in the US state of Texas is only expected to worsen in coming days as waters rise following a storm of historic proportions.</b><p>A record 30in of rain (75cm) has already fallen on the city of Houston in the wake of Hurricane Harvey, turning roads into rivers.<p>But forecasters say …

Over 1,000 people rescued as Harvey floods Houston

Emergency crews raced to pull people from cars and homes as flood waters rose across southeast Texas, rescuing more than 1,000 people in the Houston …

Trump to visit Houston as storm death toll rises under 'historic' flooding

Donald Trump will visit Texas on Tuesday, the White House said as tropical storm Harvey brought intense rainfall that threatened “historic” flooding in Houston, freeways turning into rivers and water rushing into homes in America’s fourth largest city.<p>Flooding in Houston after hurricane Harvey – in …

Extreme Weather

Hurricane Harvey: fatality confirmed as Texas battered by 'marathon' storm – rolling report

We’re going to bring the blog to a close there, but we’ll continue to follow the damage caused by the storm throughout the night and over the next few days here.<p>Here is Tom Dart’s latest news report from Houston:<p>Hurricane Harvey: at least one dead in Texas as storm moves inland<p>Read more<p>And here is …

Extreme Weather

Hurricane Harvey will be major disaster: Texas governor

<b>Texas is facing a "very major disaster" as Hurricane Harvey approaches its coastline, the state's governor says.</b><p>It is now a category four storm as it powers across the Gulf of Mexico. It is due to make landfall on Texas' central coast very late on Friday.<p>Greg Abbott has asked for more federal aid …

Hurricane Harvey: Texas braces for massive storm

<b>Texas is bracing itself for Hurricane Harvey, which may be the worst storm to hit the US mainland in 12 years.</b><p>Harvey, currently a category two storm in the Gulf of Mexico, is expected to make landfall on Texas' central coast late on Friday or early Saturday.<p>The National Hurricane Center said storm …

Climate change link to the timing of European floods

The way floods are arising across Europe, including Ireland, is changing dramatically due to climate change, and it is mainly to do with their …

Extreme weather 'could kill up to 152,000 a year' in Europe by 2100

<b>Extreme weather could kill up to 152,000 people yearly in Europe by 2100 if nothing is done to curb the effects of climate change, scientists say.</b><p>The number is 50 times more deaths than reported now, the study in The Lancet Planetary Health journal said.<p>Heat waves would cause 99% of all …

Europe heatwave sparks health warnings as temperatures soar

<b>Parts of Europe are experiencing their most extreme heat in more than a decade as temperatures hit 44C (111F).</b><p>Several countries have issued health warnings as this week's record-breaking weather conditions continue to affect swathes of the continent.<p>Sweltering temperatures in Italy have sparked …