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ScienceDaily: Natural Disaster News
Natural Disaster News and Research. Earthquakes, volcanic eruptions, landslides, tsunamis and other natural disasters. Research past events, review predictions by scientists and learn how disaster relief can be most effective.
- Wed, 28 Jul 2021 09:13:34 -0600: Managing earthquakes triggered by oil production - Natural Disasters News -- ScienceDaily
A team of scientists has developed an approach to disposing wastewater that reduces the danger of triggering an earthquake.
- Wed, 28 Jul 2021 08:56:17 -0600: Giant friction experiment at Kilauea volcano - Natural Disasters News -- ScienceDaily
A new analysis of the 2018 collapse of Kilauea volcano's caldera helps to confirm the reigning scientific paradigm for how friction works on earthquake faults. The model quantifies the conditions necessary to initiate the kind of caldera collapse that sustains big, damaging eruptions of basaltic volcanoes like Kilauea and could help to inform forecasting and mitigation.
- Thu, 22 Jul 2021 15:12:20 -0600: Big data-derived tool facilitates closer monitoring of recovery from natural disasters - Natural Disasters News -- ScienceDaily
By analyzing peoples' visitation patterns to essential establishments like pharmacies, religious centers and grocery stores during Hurricane Harvey, researchers have developed a framework to assess the recovery of communities after natural disasters in near real time. They said the information gleaned from their analysis would help federal agencies allocate resources equitably among communities ailing from a disaster.
- Mon, 19 Jul 2021 13:35:11 -0600: Seismic surveys have no significant impact on commercially valuable fish in NW Australia, study suggests - Natural Disasters News -- ScienceDaily
New research has found marine seismic surveys used in oil and gas exploration are not impacting the abundance or behaviour of commercially valuable fishes in the tropical shelf environment in north-western Australia.
- Wed, 14 Jul 2021 13:11:51 -0600: Roadless forests see more blazes and greater severity, but fire resilience is the result - Natural Disasters News -- ScienceDaily
Roadless national forests in the American West burn more often and at a slightly higher severity than national forests with roads, but the end result for the roadless forests is greater fire resilience, researchers say.
- Wed, 14 Jul 2021 13:11:42 -0600: Fire operations-prescribed burning combo reduces wildfire severity up to 72% - Natural Disasters News -- ScienceDaily
Firefighters battling wildfires in the western United States use a variety of suppression tactics to get the flames under control. Prescribed burns, or controlled fires intentionally set to clear shrubs and forest litter before a wildfire ever ignites, can make fire suppression operations almost three times as effective in limiting wildfire severity, according to a new study.
- Fri, 09 Jul 2021 11:00:57 -0600: Huge volcanic eruption disrupted climate but not human evolution - Natural Disasters News -- ScienceDaily
A massive volcanic eruption in Indonesia about 74,000 years ago likely caused severe climate disruption in many areas of the globe, but early human populations were sheltered from the worst effects, according to a new study.
- Thu, 08 Jul 2021 11:53:41 -0600: Supervolcano fed from Earth's mantle caused crustal plates to rotate - Natural Disasters News -- ScienceDaily
The plates of the Earth's crust perform complicated movements that can be attributed to quite simple mechanisms. That is the short version of the explanation of a rift that began to tear the world apart over a length of several thousand kilometers 105 million years ago.
- Thu, 08 Jul 2021 09:25:48 -0600: Coastal wetlands are nature's flood defenses - Natural Disasters News -- ScienceDaily
Coastal wetlands -- such as salt marshes -- provide even more flood protection than previously thought, reducing risks to lives and homes in estuaries, a new study reveals. Research showed that wetlands that grow in estuaries can reduce water levels by up to 2 meters and provide protection far inland.
- Thu, 08 Jul 2021 09:14:48 -0600: Seismic monitoring of permafrost uncovers trend likely related to warming - Natural Disasters News -- ScienceDaily
Seismic waves passing through the ground near Longyearbyen in the Adventdalen valley, Svalbard, Norway have been slowing down steadily over the past three years, most likely due to permafrost warming in the Arctic valley.
- Thu, 08 Jul 2021 08:36:17 -0600: To predict underwater volcano eruptions, scientist looks at images from space - Natural Disasters News -- ScienceDaily
A new study monitored satellite images to obtain sea discoloration data as a novel indicator in detecting if an underwater volcano's eruption is imminent.
- Wed, 07 Jul 2021 14:05:21 -0600: Wastewater did not significantly alter seismic stress direction in southern Kansas, study finds - Natural Disasters News -- ScienceDaily
Although wastewater disposal has been the primary driving force behind increased earthquake activity in southern Kansas since 2013, a new study concludes that the disposal has not significantly changed the orientation of stress in the Earth's crust in the region.
- Wed, 07 Jul 2021 09:25:13 -0600: New study helps explain 'silent earthquakes' along New Zealand's North Island - Natural Disasters News -- ScienceDaily
The Hikurangi Margin, located off the east coast of the North Island of New Zealand, is partly responsible for the more than 15,000 earthquakes the region experiences each year. Scientists have been working to understand why this plate boundary produces both imperceptible silent earthquakes, but also potentially major ones. A study offers new perspective and possible answers.
- Wed, 07 Jul 2021 09:24:02 -0600: Like a molten pancake - Natural Disasters News -- ScienceDaily
Why magma flowed along a curved pathway during the 2018 eruption of a Galapagos volcano is explained by a new model.
- Thu, 01 Jul 2021 09:26:39 -0600: Underwater seismometer can hear how fast a glacier moves - Natural Disasters News -- ScienceDaily
Scientists show that an ocean-bottom seismometer deployed close to the calving front of a glacier in Greenland can detect continuous seismic radiation from a glacier sliding, reminiscent of a slow earthquake.
- Thu, 01 Jul 2021 09:26:13 -0600: Eruption of the Laacher See volcano redated - Natural Disasters News -- ScienceDaily
The eruption of the Laacher See volcano in the Eifel in Germany is one of Central Europe's largest eruptions over the past 100,000 years. Technical advances in combination with tree remains buried in the course of the eruption now enabled an international research team to accurately date the event. Accordingly, the eruption of the Laacher See volcano occurred 13,077 years ago and thus 126 years earlier than previously assumed.
- Mon, 28 Jun 2021 15:05:31 -0600: Storing carbon inn rocks underground: Old oil fields may be less prone to induced earthquakes - Natural Disasters News -- ScienceDaily
Subsurface carbon sequestration -- storing carbon in rocks deep underground -- offers a partial solution for removing carbon from the atmosphere. Used alongside emissions reductions, geologic carbon sequestration could help mitigate anthropogenic climate change. But like other underground operations, it comes with risks -- including earthquakes.
- Mon, 28 Jun 2021 13:29:09 -0600: Mangrove forest study has takeaways for coastal communities - Natural Disasters News -- ScienceDaily
A new article shines light on the effect human-made infrastructure and natural topography has on coastal wetlands after major storm events.
- Mon, 28 Jun 2021 10:30:14 -0600: Data from boreholes in plate boundaries could explain slow earthquakes - Natural Disasters News -- ScienceDaily
Slow earthquakes are long-period earthquakes that are not so dangerous alone, but are able to trigger more destructive earthquakes. Their origins lie in tectonic plate boundaries where one plate subsides below another. Though the causal mechanism is already known, there has been a lack of data to accurately model the life cycle of slow earthquakes. For the first time, researchers use deep-sea boreholes to gauge pressures far below the seafloor.
- Thu, 24 Jun 2021 09:44:02 -0600: New knowledge of Earth's mantle helps to explain Indonesia's explosive volcanoes - Natural Disasters News -- ScienceDaily
Indonesia's volcanoes are among the world's most dangerous. Why? Through chemical analyses of tiny minerals in lava from Bali and Java, researchers have found new clues. They now understand better how the Earth's mantle is composed in that particular region and how the magma changes before an eruption.
- Wed, 23 Jun 2021 11:06:49 -0600: Machine learning aids earthquake risk prediction - Natural Disasters News -- ScienceDaily
Soil liquefaction was a major feature of the 2011 Christchurch, New Zealand earthquake that killed 185 people. Researchers developed a machine learning model to predict the amount of lateral movement that can be expected from liquefaction during a natural hazard event. Their model, trained on Christchurch data, was 70% accurate at determining the amount of displacement that occurred.
- Wed, 23 Jun 2021 07:12:30 -0600: Natural hazards threaten 57% of US structures - Natural Disasters News -- ScienceDaily
More than half of the structures in the contiguous United States are exposed to potentially devastating natural hazards such as floods, tornadoes and wildfires. Increasing temperatures and environmental changes contribute to this trend, according to a new study.
- Tue, 22 Jun 2021 07:16:15 -0600: Analysing volcanoes to predict their awakening - Natural Disasters News -- ScienceDaily
A team has reviewed the literature on the internal and external mechanisms that lead to a volcanic eruption. Analyzing the thermo-mechanics of deep volcanic processes and magma propagation to the surface, together with magma chemistry, the geologists determined that most of the magma rising from depth actually does not cause a volcanic eruption. They also show that older volcanoes tend to produce less frequent, but larger and more dangerous eruptions.
- Mon, 21 Jun 2021 14:05:24 -0600: The Science of tsunamis - Natural Disasters News -- ScienceDaily
The word 'tsunami' brings immediately to mind the havoc that can be wrought by these uniquely powerful waves. The tsunamis we hear about most often are caused by undersea earthquakes, and the waves they generate can travel at speeds of up to 250 miles per hour and reach tens of meters high when they make landfall and break. They can cause massive flooding and rapid widespread devastation in coastal areas, as happened in Southeast Asia in 2004 and in Japan in 2011.
- Mon, 21 Jun 2021 10:38:16 -0600: New model simulates the tsunamis caused by iceberg calving - Natural Disasters News -- ScienceDaily
A team of scientists has developed a new model for simulating both iceberg calving and the tsunamis that are triggered as a result. Their method can help improve hazard assessment in coastal areas and refine the empirical calving models used to evaluate rising sea levels.
- Fri, 18 Jun 2021 11:40:43 -0600: Earlier flood forecasting could help avoid disaster in Japan - Natural Disasters News -- ScienceDaily
Researchers have revealed that a newly developed forecasting system can accurately predict flood locations 32 hours in advance. Extreme rainfall events are occurring increasingly frequently; such accurate and timely flood warnings will help to minimize their impact by providing time for measures to protect people and property.
- Fri, 18 Jun 2021 11:40:09 -0600: The Earth has a pulse -- a 27.5-million-year cycle of geological activity, researchers say - Natural Disasters News -- ScienceDaily
Geologic activity on Earth appears to follow a 27.5-million-year cycle, giving the planet a 'pulse,' according to a new study.
- Wed, 16 Jun 2021 17:15:07 -0600: New models predict fewer lightning-caused ignitions but bigger wildfires by mid century - Natural Disasters News -- ScienceDaily
Human-caused wildfire ignitions in Central Oregon are expected to remain steady over the next four decades and lightning-caused ignitions are expected to decline, but the average size of a blaze from either cause is expected to rise, modeling suggests.
- Wed, 16 Jun 2021 07:41:09 -0600: Balanced rocks set design ground motion values for New Zealand dam - Natural Disasters News -- ScienceDaily
Researchers have used precariously-balanced rocks to set the formal design earthquake motions for a major existing engineered structure -- the Clyde Dam, the largest concrete dam in New Zealand.
- Thu, 10 Jun 2021 13:01:25 -0600: Cause, scope determined for deadly winter debris flow in Uttarakhand, India - Natural Disasters News -- ScienceDaily
The Uttarakhand region of India experienced a humanitarian tragedy on Feb. 7, 2021, when a wall of debris and water barreled down the Ronti Gad, Rishiganga and Dhauliganga river valleys. This debris flow destroyed two hydropower facilities and left more than 200 people dead or missing. A self-organized coalition of 53 scientists came together in the days following the disaster to investigate the cause, scope and impacts.
- Thu, 03 Jun 2021 15:12:19 -0600: Linked faults under Salt Lake City may elevate risk of building damage - Natural Disasters News -- ScienceDaily
A complex zone of folding and faulting that links two faults underneath downtown Salt Lake City could deform the ground during a large earthquake, according to a new study.
- Tue, 01 Jun 2021 11:58:34 -0600: How AI could alert firefighters of imminent danger - Natural Disasters News -- ScienceDaily
Researchers have developed an artificial-intelligence-powered tool to predict and warn of a deadly phenomenon in burning buildings known as flashover, when flammable materials in a room ignite almost simultaneously, producing a potentially ferocious blaze. The tool's predictions are based on temperature data from a building's heat detectors, and, remarkably, it is designed to operate even after heat detectors begin to fail, making do with the remaining devices.
- Thu, 27 May 2021 09:25:12 -0600: Fisheries resilience following Tohoku tsunami - Natural Disasters News -- ScienceDaily
A small Japanese fishing community devastated by the Great East Japan Earthquake and Tsunami of 2011 managed to recover from the disaster through cooperative community activity despite the propensity for individualist-competitive behavior within fisheries - cooperative activity that continued many years later.
- Wed, 26 May 2021 07:31:02 -0600: Slope stability model can help prevent landslides to protect communities and save lives - Natural Disasters News -- ScienceDaily
Researchers hope industry and governments worldwide will use the SSSAFE model to help early warning systems mitigate landslide risks
- Tue, 25 May 2021 14:08:55 -0600: Does cold wildfire smoke contribute to water repellent soils in burned areas? - Natural Disasters News -- ScienceDaily
After a wildfire, soils in burned areas often become water repellent, leading to increased erosion and flooding after rainfall events - a phenomenon that many scientists have attributed to smoke and heat-induced changes in soil chemistry. But this post-fire water repellency may also be caused by wildfire smoke in the absence of heat, according to a new article.
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