• The geometry of subduction zone indicates mega-earthquake risks

    Mega-earthquakes (with a magnitude greater than 8.5) mainly occur on subduction faults where one tectonic plate passes under another. But the probability of such earthquakes does not appear to be even across these zones. Researchers show that mega-earthquakes mostly occur on the flattest subduction zones. Thus, the Philippines, Salomon Islands and Vanuatu areas would not be favorable to mega-earthquakes, unlike South America, Indonesia and Japan. The discovery of this new indicator should improve earthquake monitoring and seismic and tsunami risk prevention.

  • Invisibility cloaks could protect buildings from earthquakes

    Earthquakes travel in waves, much as sound and light do. Scientists have previously designed materials with internal structures that interfere with the propagation of sound and light, and now researchers are working on making bigger versions of these structures, which could be used to control the propagation of earthquakes.

  • Hurricane risk to Northeast U.S. coast increasing

    New research suggests the Northeastern coast of the United States could be struck by more frequent and more powerful hurricanes in the future due to shifting weather patterns caused by manmade industrial emissions. The researchers found that hurricanes have gradually moved north from the western Caribbean towards North America over the past several hundred years.

  • At forum, MIT community tackles tough ethical questions of climate change

    By Kathryn M. O'Neill

    An MIT panel discussed The ethical challenges presented by climate change and the question of what individuals — and academic institutions like MIT — can do to affect change. “Science has performed its role adequately,” said Vice President for Research Maria Zuber, “[but] it cannot tell us what our obligations are to future generations. Determining how to respond to climate change is a question for all of us.”

  • Japan lifts Tsunami advisories

    The Japanese authorities have lifted tsunami advisories issued after a powerful earthquake struck the northeast of the country early Tuesday, injuring twenty people. The magnitude 7.4 earthquake occurred at 5:59 a.m., local time, off the coast of Fukushima prefecture. There were no deaths or major damage, but transportation was disrupted and residents of low-lying areas were instructed to leave their homes for higher ground. The quake was felt in Tokyo, about 150 miles away. Nearly 16,000 people were killed and more than 2,500 remain missing from the magnitude 9.1 earthquake that struck Japan’s northeastern regions on 11 March 2011.

  • Japan’s latest tsunami reaction shows lessons learned from previous disasters

    By James Goff

    Parts of Japan were on tsunami alert today following a magnitude 6.9 earthquake off the east coast of the country. This was the first real test for Japan since the 2011 earthquake which led to a deadly tsunami. The lessons learned from 2011 saw higher seawalls, more effective public education and evacuation protocols, a beefed-up response from the nuclear industry and so on, but would it pass the test? The good news is that Japan came through this with flying colors. It wasn’t long after the earthquake hit that the tsunami warnings were later downgraded. Undoubtedly there will have been one or two glitches, but the tsunami was managed well by a country that has experienced more of these events that any of us would ever like to contemplate.

  • Human, economic costs of disasters underestimated by up to 60 percent

    The impact of extreme natural disasters is equivalent to a global $520 billion loss in annual consumption, and forces some twenty-six million people into poverty each year, says a new report from the World Bank. “Severe climate shocks threaten to roll back decades of progress against poverty,” said World Bank Group President Jim Yong Kim. “Storms, floods, and droughts have dire human and economic consequences, with poor people often paying the heaviest price. Building resilience to disasters not only makes economic sense, it is a moral imperative.”

  • Location matters: Sandy’s tides hit some parts of the N.J. coast harder than others

    USGS researchers ground-truthed Hurricane Sandy’s October 2012 storm tides in New Jersey and found northern coastal communities had significantly higher storm tides than southern ones did, though flood damage was widespread in both areas. The findings suggest that some southern New Jersey communities may be underestimating their future flood risks.

  • Using drones, insect biobots to map disaster areas

    Researchers have developed a combination of software and hardware that will allow them to use unmanned aerial vehicles (UAVs) and insect cyborgs, or biobots, to map large, unfamiliar areas – such as collapsed buildings after a disaster. “The idea would be to release a swarm of sensor-equipped biobots – such as remotely controlled cockroaches – into a collapsed building or other dangerous, unmapped area,” says one of the researchers.

  • Climate, not conflict, explains extreme “Middle East Dust Bowl”

    Climate change, not ongoing regional conflict, was the cause of a severe dust storm that enveloped much of the Middle East and the Mediterranean last September, according to new research. The storm, labeled by some media outlets as the “Middle-Eastern Dust Bowl,” affected Syria, Lebanon, Turkey, and Cyprus, leading to scores of people being hospitalized, ports being closed, flights being cancelled, and large portions of the affected countries and eastern Mediterranean Sea being covered in an unprecedented haze.

  • 2015 Indonesian fires exposed 69 million to “killer haze”

    More than 69 million people living in Malaysia, Singapore, and Indonesia were exposed to unhealthy air quality conditions during the 2015 wildfires in Equatorial Asia during the autumn of 2015. The wildfires are linked to as many as 17,270 premature deaths. “The wildfires of 2015 were the worst we’ve seen for almost two decades as a result of global climate change, land use changes, and deforestation. The extremely dry conditions in that region mean that these are likely to become more common events in the future, unless concerted action is taken to prevent fires,” said one researcher.

  • Be Prepared: Asteroid emergency planning exercise

    What would we do if we discovered a large asteroid on course to impact Earth? While highly unlikely, that was the high-consequence scenario discussed by attendees at an 25 October NASA-FEMA tabletop exercise in El Segundo, California. The exercise simulated a possible impact four years from now — a fictitious asteroid imagined to have been discovered this fall with a 2 percent probability of impact with Earth on 20 September 2020.

  • Global climate 2011-2015: hot and wild

    The World Meteorological Organization has published a detailed analysis of the global climate 2011-2015 – the hottest five-year period on record — and the increasingly visible human footprint on extreme weather and climate events with dangerous and costly impacts. The record temperatures were accompanied by rising sea levels and declines in Arctic sea-ice extent, continental glaciers, and northern hemisphere snow cover. All these climate change indicators confirmed the long-term warming trend caused by greenhouse gases.

  • Powerful earthquake causes substantial destruction in New Zealand

    A 7.8 magnitude earthquake in New Zealand has killed at least two people and destroyed infrastructure and property. The prime minister said the damage was likely to amount to nearly $1.5 billion. Overnight, aftershocks measuring up to 6.3 magnitude were registered in the area, which in 2011 saw a similar magnitude quake kill 185 people.

  • Addressing the risk of an ecological breakdown

    In Surviving the 21st Century, Julian Cribb says that “Our combined actions may be leading to a gross ecological breakdown that will strike humanity harder than anything in our experience.” He adds: “Today humanity is facing ten huge existential threats, all of our own making. The good news is that we have the brains and the technologies to solve them – and to prosper from their solution. However we currently lack the collective will, the ability to co-operate, and the institutions to save ourselves. That is a worry.” He concludes: “This is absolutely a book about solutions – and opportunities. It is about hope – though a hope that is well-founded, on fact and science, not simply on belief, ignorance, or wishful thinking. It’s about understanding and facing up to the things which imperil out future, so that we can overcome them.”