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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.
- Thu, 21 Jan 2021 11:22:22 -0700: When it comes to eyewitness accounts of earthquake shaking, representation matters - Natural Disasters News -- ScienceDaily
As scientists increasingly rely on eyewitness accounts of earthquake shaking reported through online systems, they should consider whether those accounts are societally and spatially representative for an event, according to a new article.
- Tue, 19 Jan 2021 10:20:58 -0700: Tiny bubbles tell tales of big volcanic eruptions - Natural Disasters News -- ScienceDaily
Microscopic bubbles can tell stories about Earth's biggest volcanic eruptions and geoscientists have discovered some of those stories are written in nanoparticles.
- Mon, 11 Jan 2021 06:42:20 -0700: Understanding origins of Arizona's Sunset Crater eruption of 1,000 years ago - Natural Disasters News -- ScienceDaily
Scientists have been working to solve the mysterious root cause of the Sunset Crater eruption and any lessons learned to better understand the threats similar volcanoes may pose around the world today. But as to why it erupted, that has remained a mystery, until now. Recent research shows the importance of carbon dioxide in volcanic eruptions.
- Mon, 04 Jan 2021 15:01:04 -0700: Reawakened geyser does not foretell Yellowstone volcanic eruptions - Natural Disasters News -- ScienceDaily
Geyser eruptions, like volcanic eruptions, are a mystery, so the reactivation of Steamboat Geyser in Yellowstone in 2018 provided an opportunity to explore why geysers turn off and on, and what determines their periodicity. Researchers found little evidence of magma moving below the geyser, meaning no sign of imminent hydrothermal eruptions, but did discover a relationship between the height of the column and the depth of the water reservoir.
- Mon, 04 Jan 2021 15:00:59 -0700: Scientists develop new approach to understanding massive volcanic eruptions - Natural Disasters News -- ScienceDaily
An international volcanology team has created a first-of-its kind tool that can aid scientists in understanding past explosive eruptions that shaped the earth and improve the way of estimating hazards of future eruptions.
- Wed, 23 Dec 2020 12:24:33 -0700: Evidence for a massive paleo-tsunami at ancient Tel Dor - Natural Disasters News -- ScienceDaily
Underwater excavation, borehole drilling, and modelling suggests a massive paleo-tsunami struck near the ancient settlement of Tel Dor between 9,910 to 9,290 years ago, according to a new study.
- Mon, 21 Dec 2020 15:31:31 -0700: Deep, slow-slip action may direct largest earthquakes and their tsunamis - Natural Disasters News -- ScienceDaily
Megathrust earthquakes and subsequent tsunamis that originate in subduction zones like Cascadia -- Vancouver Island, Canada, to northern California -- are some of the most severe natural disasters in the world. Now a team of geoscientists thinks the key to understanding some of these destructive events may lie in the deep, gradual slow-slip behaviors beneath the subduction zones. This information might help in planning for future earthquakes in the area.
- Mon, 21 Dec 2020 10:17:54 -0700: New model reveals previously unrecognized complexity of oceanic earthquake zones - Natural Disasters News -- ScienceDaily
Researchers constructed a state-of-the-art model based on seismic data from the January 2020 Caribbean earthquake. The model revealed considerable complexity in rupture speed and direction, related to a bend in the fault that triggered several rupture episodes. The analysis revealed previously unrecognized complexity of rupture processes and fault geometry in ocean faults that had been assumed to be simple and linear, with implications for future earthquake modeling and a possible interaction with seafloor evolution.
- Fri, 18 Dec 2020 06:41:13 -0700: Fire-resistant tropical forest on brink of disappearance - Natural Disasters News -- ScienceDaily
A new study reveals the extreme scale of loss and fragmentation of tropical forests, which once covered much of the Indonesian islands of Sumatra and Kalimantan. The study also reveals that only 10 percent of the forest that is left remains fire-resistant. The researchers warn that protecting this is crucial for preventing catastrophic fire.
- Wed, 16 Dec 2020 13:52:17 -0700: Secret of Australia's volcanoes revealed - Natural Disasters News -- ScienceDaily
New research proposes a theory that explains not only Australia's volcanic coast, but provides a framework for other incidences of intraplate volcanism in China, the US and the Caribbean.
- Mon, 14 Dec 2020 10:34:47 -0700: Oregon's Western Cascades watershed to experience larger, more frequent fires - Natural Disasters News -- ScienceDaily
Projected changes in temperature and relative humidity are expected to lead to longer fire seasons and more severe fire weather in Oregon's Western Cascade mountains, which in turn will result in larger, more frequent fires.
- Fri, 11 Dec 2020 06:31:13 -0700: Mass extinctions of land-dwelling animals occur in 27-million-year cycle - Natural Disasters News -- ScienceDaily
Mass extinctions of land-dwelling animals--including amphibians, reptiles, mammals, and birds -- follow a cycle of about 27 million years, coinciding with previously reported mass extinctions of ocean life, according to a new analysis.
- Wed, 09 Dec 2020 10:49:39 -0700: Hawai'i researchers kept the data flowing during crisis response on Kilauea - Natural Disasters News -- ScienceDaily
The summer 2018 eruption of Kilauea Volcano on the Island of Hawai'i was one of the most significant in the volcano's history, collapsing a large portion of the summit caldera, erupting massively from its flank and triggering a magnitude 6.9 earthquake in the process. Through it all, scientists at the Hawaiian Volcano Observatory were installing new geophysical stations, processing data and making real-time reports to local authorities and neighborhoods.
- Mon, 07 Dec 2020 09:23:06 -0700: California's 2018 wildfires caused $150 billion in damages - Natural Disasters News -- ScienceDaily
Researchers quantify the economic costs of California wildfires in 2018, finding they totaled more than $150 billion, and the costs extended far beyond burned areas.
- Mon, 07 Dec 2020 08:21:05 -0700: Newly discovered Greenland plume drives thermal activities in the Arctic - Natural Disasters News -- ScienceDaily
A team of researchers understands more about the melting of the Greenland ice sheet. They discovered a flow of hot rocks, known as a mantle plume, rising from the core-mantle boundary beneath central Greenland that melts the ice from below.
- Fri, 04 Dec 2020 13:54:22 -0700: Crystals may help reveal hidden Kilauea Volcano behavior - Natural Disasters News -- ScienceDaily
Researchers used millimeter-sized crystals from the 1959 eruption of Hawaii's Kilauea Volcano to test models that offer insights about flow conditions prior to and during an eruption.
- Thu, 03 Dec 2020 07:45:31 -0700: Cluster of Alaskan islands could be single, interconnected giant volcano - Natural Disasters News -- ScienceDaily
A small group of volcanic islands in Alaska's Aleutian chain might be part of a single, undiscovered giant volcano, say scientists. If the researchers' suspicions are correct, the newfound volcanic caldera would belong to the same category of volcanoes as the Yellowstone Caldera and other volcanoes that have had super-eruptions with severe global consequences.
- Wed, 02 Dec 2020 17:27:02 -0700: Once in a lifetime floods to become regular occurrences by end of century - Natural Disasters News -- ScienceDaily
Superstorm Sandy brought flood-levels to the New York region that had not been seen in generations. Now, due to the impact of climate change, researchers have found that 100-year and 500-year flood levels could become regular occurrences for the thousands of homes surrounding Jamaica Bay, New York by the end of the century.
- Tue, 01 Dec 2020 12:40:36 -0700: Seismic activity of New Zealand's alpine fault more complex than suspected - Natural Disasters News -- ScienceDaily
New evidence of a 19th century earthquake on New Zealand's Alpine fault suggests that in at least one portion of the fault, smaller earthquakes may occur in between such large rupture events.
- Mon, 30 Nov 2020 11:14:17 -0700: Seismic guidelines underestimate impact of 'The Big One' on metro Vancouver buildings - Natural Disasters News -- ScienceDaily
Scientists examining the effects of a megathrust earthquake in the Pacific Northwest say tall buildings across Metro Vancouver will experience greater shaking than currently accounted for by Canada's national seismic hazard model.
- Mon, 30 Nov 2020 11:14:10 -0700: Earthquake scenario for large German city - Natural Disasters News -- ScienceDaily
What if there is a major earthquake near Cologne? This scenario is subject of the 'Risk Analysis in Civil Protection 2019' report that was recently submitted to the German Bundestag. On the basis of extensive research, experts have listed in detail effects to be expected. What Germans usually only know from abroad results from modeling a strong earthquake near the megacity of Cologne: ground shaking, damaged and destroyed houses, blocked roads, many injured and dead.
- Tue, 24 Nov 2020 07:22:01 -0700: Cascading events led to 2018 Kilauea volcanic eruption, providing clues for forecasting - Natural Disasters News -- ScienceDaily
The 2018 eruption of Kilauea Volcano was one of the largest volcanic events in Hawaii in 200 years. This eruption was triggered by a relatively small and rapid change at the volcano after a decade-long build-up of pressure in the upper parts of the volcano, according to a recent study.
- Mon, 23 Nov 2020 15:34:48 -0700: Indonesian wildfires a 'fixable problem' - Natural Disasters News -- ScienceDaily
Indonesian wildfires that cause widespread air pollution and vast carbon emissions are a 'fixable problem', according to the leader of a project set up to help tackle the issue.
- Mon, 23 Nov 2020 08:10:00 -0700: Changes in fire activity are threatening more than 4,400 species globally - Natural Disasters News -- ScienceDaily
More than 4,400 species across the globe are at risk from extinction because of changes in fire activity says a new article.
- Tue, 17 Nov 2020 17:25:55 -0700: Piecing together the Alaska coastline's fractured volcanic activity - Natural Disasters News -- ScienceDaily
Among seismologists, the geology of Alaska's earthquake- and volcano-rich coast from the Aleutian Islands to the southeast is fascinating, but not well understood. Now, with more sophisticated tools than before, a team reports unexpected new details about the area's tectonic plates and their relationships to volcanoes.
- Mon, 16 Nov 2020 05:57:17 -0700: Former piece of Pacific Ocean floor imaged deep beneath China - Natural Disasters News -- ScienceDaily
In a study that gives new meaning to the term 'rock bottom,' seismic researchers have discovered the underside of a rocky slab of Earth's lithosphere that has been pulled more than 400 miles beneath northeastern China by the process of tectonic subduction.
- Fri, 13 Nov 2020 10:40:38 -0700: East African Rift System is slowly breaking away, with Madagascar splitting into pieces - Natural Disasters News -- ScienceDaily
The African continent is slowly separating into several large and small tectonic blocks along the diverging East African Rift System, continuing to Madagascar - the long island just off the coast of Southeast Africa - that itself will also break apart into smaller islands.
- Fri, 13 Nov 2020 08:37:30 -0700: Love waves from the ocean floor - Natural Disasters News -- ScienceDaily
Supercomputer simulations of planetary-scale interactions show how ocean storms and the structure of Earth's upper layers together generate much of the world's seismic waves. Decoding the faint but ubiquitous vibrations known as Love waves could yield insights about Earth's storm history, changing climate and interior.
- Thu, 12 Nov 2020 10:38:27 -0700: Landslide along Alaskan fjord could trigger tsunami - Natural Disasters News -- ScienceDaily
Scientists noted that the slope on Barry Arm fjord on Prince William Sound in southeastern Alaska slid some 120 meters from 2010 to 2017, a slow-moving landslide caused by glacial melt that could trigger a devastating tsunami. These are some of the first measurements to quantify how the slope is falling there; the study also models a potential tsunami.
- Wed, 11 Nov 2020 12:43:31 -0700: Mental health strained by disaster - Natural Disasters News -- ScienceDaily
A new study found that suicide rates increase during all types of disasters -- including severe storms, floods, hurricanes and ice storms -- with the largest overall increase occurring two years after a disaster. A team of researchers examined the impact of 281 natural disasters on suicide rates during a 12-year span and found overall suicide rates increased by 23% when compared to rates before and after the disaster.
- Tue, 10 Nov 2020 11:31:52 -0700: Large volcanic eruption caused the largest mass extinction - Natural Disasters News -- ScienceDaily
Researchers say they have found more concrete evidence of the volcanic cause of the largest mass extinction of life. Their research looked at two discrete eruption events: one that was previously unknown to researchers, and the other that resulted in large swaths of terrestrial and marine life going extinct.
- Sat, 07 Nov 2020 11:39:20 -0700: Mystery of glacial lake floods solved - Natural Disasters News -- ScienceDaily
A long-standing mystery in the study of glaciers was recently and serendipitously solved. A trigger was identified for some of the largest floods on Earth -- those emerging suddenly and unpredictably from beneath glaciers or ice caps.
- Thu, 05 Nov 2020 06:37:13 -0700: Crystals reveal the danger of sleeping volcanoes - Natural Disasters News -- ScienceDaily
Most active volcanoes on Earth are dormant and are normally not considered hazardous. A team of volcanologists has devised a technique that can predict their devastating potential. The scientists used zircon, a tiny crystal contained in volcanic rocks, to estimate the volume of magma that could be erupted once Nevado de Toluca volcano (Mexico) will wake up from its dormancy. Up to 350 km3 of magma are currently lying below.
- Wed, 04 Nov 2020 10:14:38 -0700: Smaller earthquakes with 'ambition' produce the most ground shaking - Natural Disasters News -- ScienceDaily
An earthquake of magnitude 8.0 or larger will almost always cause strong shaking, but a new study suggests that smaller earthquakes -- those around magnitude 5.5 or so -- are the cause of most occurrences of strong shaking at a 60-kilometer (37-mile) distance.
- Wed, 04 Nov 2020 09:47:37 -0700: Effective government saves lives in cyclones, other disasters - Natural Disasters News -- ScienceDaily
Effective national and local governments are associated with fewer deaths from tropical cyclone disasters -- even in countries with similar levels of wealth and development.
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