You are browsing the archive for natural hazards Archives - AGU Blogosphere.
9 October 2017
By Linda Rowan, AGU Societal Impacts and Policy Sciences (SIPS) Focus Group President, and Director of External Affairs, UNAVCO Inc. Earth science captures the public’s attention when a natural disaster strikes, when natural resources are needed or when Earth’s environment faces a threat. As the Earth science community prepares to celebrate Earth Science Week from 8-14 October 2017, with a theme of Earth Science and Human Activity, there has been …
7 September 2017
Reflections On the 1900 Galveston Hurricane, Hurricane Harvey, and the Increase in Extreme Weather Events
By Ramesh P. Singh, Ph.D., AGU Natural Hazards Focus Group President, and Chapman University Professor of Earth System and Remote Sensing On 8 September 1900, the town of Galveston, Texas, close to Houston, was hit by a category 4 hurricane with strong winds of 135 miles per hour and storm surges up to 15 feet high. As a result, more than 10,000 people were killed and more than 3000 buildings …
30 August 2017
By listening to the acoustic signal emitted by a laboratory-created earthquake, a computer science approach using machine learning can predict the time remaining before the fault fails. Not only does the work have potential significance to earthquake forecasting, but the approach is far-reaching, applicable to potentially all failure scenarios, including avalanches and other events.
19 May 2017
Scientists have developed snapshots of the likelihood of major earthquakes occurring in megacities around the world using a new statistical approach for estimating earthquake risk. The new technique, called seismic nowcasting, estimates the progress of a defined seismically-active geographic region through its repetitive cycle of major earthquakes.
26 April 2017
A new study is challenging a long-held theory that tsunamis form and acquire their energy mostly from vertical movement of the seafloor. The finding validates an approach developed by researchers that uses GPS technology to detect a tsunami’s size and strength for early warnings.
22 December 2016
Using sediment as an indicator of past hurricanes may not work well in hot, humid environments, a new study finds. The finding could change the way scientists hunt for evidence of past storms, according to the study’s authors.
21 December 2016
Mining activity caused nearly half of all earthquakes in Utah over the past three decades, according to a new study. By studying the epicenters of 6,846 earthquakes occurring in the state between 1982 and 2016, scientists at the University of Utah determined 3,957 of them occurred naturally and 2,889 were caused by coal mining.
22 December 2014
Welcome to the first-ever guest post on the GeoEd Trek blog, focusing on the teaching of landslides and earthquake dynamics in the Himalayas and the EGU 2015 session on Natural Hazards Education and Communications
13 June 2014
By Beth Bartel, Outreach Specialist, UNAVCO Okay, maybe that title is a bit harsh. When it comes to delivering a message about hazards and risk, there’s certainly benefit in delivering broad messages, to a broad public. But what I’d like to focus on is the power of targeting communication about natural hazards and risk to a local audience, and connecting with your audience through stories. So let’s start with one. …
10 June 2014
Kris Ludwig, Staff Scientist, US Geological Survey Natural Hazards Mission Area We all use some form of hypothetical situations to plan our daily lives: What if it rains? Bring an umbrella. What if you’re in an accident? Buy insurance. What if there’s traffic? Learn alternate routes. On some level, we understand and accept the risk of discrete events like a storm, an accident, or a travel delay that may adversely …
2 June 2014
By Jeff Rubin, Emergency Manager, Tualatin Valley Fire & Rescue, Tigard, OR We’re justifiably concerned about terrorism, but natural hazards still generate far greater risk in terms of number of incidents, geographic spread, casualties, and economic impact. On the positive side, Mother Nature is not an adaptive opponent (Gaiaism notwithstanding), which means that our actions to reduce natural-hazard impact can actually yield useful results. Earthquake Country has a distinctly different …
9 May 2014
By Harold E. Brooks, Senior Research Scientist, NOAA/National Severe Storms Laboratory With the release of the new National Climate Assessment, the scientific community has put forward our best understanding of the changes that have occurred and are expected to occur as the planet continues to warm. Noticeably, little is said about tornadoes in this document. There’s good reason for this absence. Despite a wide variety of speculation in the online …
19 September 2013
September marks the 10th annual National Preparedness Month. The President, FEMA, and disaster organizations encourage communities to prepare for and become more resilient to emergencies. FEMA Administrator Craig Fugate recognizes that preparedness seems difficult, time-consuming, and expensive. “Preparedness is more about a state of mind than a stack of supplies,” he suggested during a recent National Academies meeting on Disaster Resilience in America. This includes using the information around us …
14 June 2013
What are the odds that tomorrow you walk out of your home to see a meteor burning up in Earth’s atmosphere as it hurtles toward our planet at breakneck speed? Luckily, chances are pretty low. But, as evidenced by the recent large fireball – or “superbolide” if you speak Astrophysics – seen by many (and captured by many video cameras) near Chelyabinsk, Russia, this does happen. That relatively small meteor …
10 June 2013
We only have to turn on the news to see the need for better risk reduction in the United States and worldwide. Recent tornadoes in Oklahoma have killed dozens, and many people across the country were surprised to learn that sometimes local policy does not require tornado shelters in areas known for tornado outbreaks. Natural disasters can destroy livelihoods as well. On average, extreme weather events, including hurricanes, tornadoes, …