You are browsing the archive for natural hazards Archives - GeoSpace.
21 November 2019
University of South Florida geoscientists have successfully developed and tested a new high-tech shallow water buoy that can detect the small movements and changes in the Earth’s seafloor that are often a precursor to deadly natural hazards, like earthquakes, volcanoes and tsunamis.
22 April 2019
A new study explains the mechanism behind Hurricane Harvey’s unusual intensification off the Texas coast and how the finding could improve future hurricane forecasting.
4 March 2019
A geologic fault system in central Italy that produced a deadly earthquake in 2016 is also responsible for a fifth-century earthquake that damaged many Roman monuments, including the Colosseum, according to new research. The Mount Vettore fault system, which winds through Italy’s Apennine Mountains, ruptured in the middle of the night on August 24, 2016. The magnitude 6.2 earthquake it generated killed nearly 300 people and destroyed several villages in the surrounding region. The fault ruptured again in October 2016, producing two more earthquakes with magnitudes greater than 6.
14 January 2019
Fort McMurray homes have normal levels of indoor toxic substances following wildfire, new study reveals
Researchers have examined dust from homes in Fort McMurray in Canada for evidence of harmful toxins left in the aftermath of the devastating 2016 wildfire. Their study reveals normal levels of contaminants that are comparable to homes across Canada, and so far, no evidence of long-term health risks from fire-ash exposure in residents’ homes
11 January 2019
Sand dunes on coastal barrier islands buffer the U.S. Atlantic and Gulf coasts from oncoming hurricanes. Every year, millions of public and private dollars fund the restoration of these barrier islands, but managers often focus on the recovery of smaller sand dunes and aim at making them bigger, for better storm protection. But new research presented at the 2018 AGU Fall Meeting last month finds sand dunes on these barrier islands don’t all recover at the same rate. Small dunes go back to becoming small dunes; large dunes recover to be large dunes; and they don’t typically grow larger than they were before the storm struck.
28 December 2018
Tropical cyclones, and the torrential rains and strong winds these storms bring along with them, threaten coastal communities around the world and are expected to increase in intensity due to climate change. Whether or not a natural hazard, such as a tropical cyclone, becomes a natural disaster depends on whether the hazard overwhelms existing human infrastructure in a particular country or region. But when does a natural disaster result in fatalities?
19 November 2018
Six independent earthquakes and two aftershocks of magnitude 4.4 to 5.1 shook LA between 1935 and 1944, a rate of about one every two years. A new study re-examined historical information about the earthquakes from archived damage reports to refine the earthquake locations identified by early earth-motion sensors, placing them closer to many active oil fields.
26 October 2018
Some coal-fired power plants in the United States emit gases that may produce harmful compounds in drinking water and can have significant effects on the atmosphere, according to new research. A new study published in the Journal of Geophysical Research: Atmospheres, a journal of the American Geophysical Union, finds unexpectedly high levels of reactive bromine-containing chemicals in plumes emitted by coal-fired power plants not using a particular type of exhaust-cleaning technology.
22 October 2018
A Canadian fault scientists thought was inactive may actually be capable of producing large-magnitude earthquakes, a new study finds.
17 August 2018
New technology that detects radiation from the Sun in real time and immediately predicts subsequent health risks could protect astronauts on future deep-space missions, according to a new study. Astronauts face dangers during solar energetic particle, or SEP, events, which occur when an eruption in the Sun’s atmosphere hurls high-energy protons out into space. These protons can penetrate the walls of a spacecraft and enter the human body. This radiation can cause immediate effects such as nausea, performance degradation and other acute radiation syndromes, while long-term effects can include cancer, degenerative tissue damage, heart disease and damage to the central nervous system.