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Categories: Geoscience: Landslides, Geoscience: Volcanoes
Published Evacuation during and after the 2018 Montecito debris flow
(via sciencedaily.com) A new study speaks to the importance of public awareness programs in keeping residents -- and emergency management offices -- informed about rare but potentially lethal natural events in their area.
Published Seismic forensics and its importance for early warning
(via sciencedaily.com) The catastrophic rockslide of February 7, 2021, in India's Dhauli Ganga Valley and the subsequent flood killed at least a hundred people and destroyed two hydroelectric power plants. Researchers traced the disaster minute by minute using data from a network of seismometers. The team posits that seismic networks could be used to establish an early warning system for high mountain regions.
Published What lies beneath: Volcanic secrets revealed
(via sciencedaily.com) Lava samples have revealed a new truth about the geological make-up of the Earth's crust and could have implications for volcanic eruption early warning systems, a new study has found.
Published Threat of catastrophic supervolcano eruptions is ever-present
(via sciencedaily.com) Scientists have studied an ancient supervolcano in Indonesia and found such volcanoes remain active and hazardous for thousands of years after a super-eruption, prompting the need for a rethink of how these potentially catastrophic events are predicted.
Published Landslide disaster risk in the Kivu Rift is linked to deforestation and population growth
(via sciencedaily.com) New research shows how deforestation and population growth have greatly impacted landslide risk in the Kivu Rift. This is what researchers established from an analysis of six decades of forest cover and population trends in the region.
Published Climate change will transform cooling effects of volcanic eruptions
(via sciencedaily.com) Researchers have shown that human-caused climate change will have important consequences for how volcanic gases interact with the atmosphere.
Published Minor volcanic eruptions could ‘cascade’ into global catastrophe
(via sciencedaily.com) Researchers call for a shift in focus away from risks of 'super-volcanic' eruptions and towards likelier scenarios of smaller eruptions in key global 'pinch points' creating devastating domino effects.
Published Sea levels influence eruptions on volcanic island
(via sciencedaily.com) The rise and fall of sea levels influence the likelihood of volcanic eruptions on the Greek island of Santorini, new research has discovered. Analyzing the timings of eruptions over hundreds of thousands of years, the researchers found that a 40 meter fall in sea level is a crucial point beyond which eruptions are more likely to occur. The findings could have implications for millions of people living on volcanic islands around the world.
Published Giant friction experiment at Kilauea volcano
(via sciencedaily.com) 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.
Published Sea-level rise may worsen existing San Francisco Bay Area inequities
(via sciencedaily.com) Researchers examined the number of households unable to pay for damages from coastal flooding to reveal how sea-level rise could threaten the fabric of Bay Area communities over the next 40 years.
Published Huge volcanic eruption disrupted climate but not human evolution
(via sciencedaily.com) 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.
Published Supervolcano fed from Earth's mantle caused crustal plates to rotate
(via sciencedaily.com) 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.
Published Coastal wetlands are nature's flood defenses
(via sciencedaily.com) 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.
Published To predict underwater volcano eruptions, scientist looks at images from space
(via sciencedaily.com) Original source 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.
Published Like a molten pancake
(via sciencedaily.com) Original source Why magma flowed along a curved pathway during the 2018 eruption of a Galapagos volcano is explained by a new model.
Published The Science of tsunamis
(via sciencedaily.com) 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.
Published Deforestation darkening the seas above world's second biggest reef
(via sciencedaily.com) Converting Central American tropical forests into agricultural land is changing the color and composition of natural material washing into nearby rivers, making it less likely to decompose before it reaches the ocean, a new study has shown.
Published Puerto Rico is prone to more flooding than the island is prepared to handle
(via sciencedaily.com) Puerto Rico is not ready for another hurricane season, let alone the effects of climate change, according to a new study that shows the island's outstanding capacity to produce record-breaking floods and trigger a large number of landslides.
Published Slope stability model can help prevent landslides to protect communities and save lives
(via sciencedaily.com) Researchers hope industry and governments worldwide will use the SSSAFE model to help early warning systems mitigate landslide risks
Published The driving force behind tropical mudslides
(via sciencedaily.com) Geological knowledge is essential for predicting what areas in a tropical mountain range are more prone to have landslides, earthquakes and volcanic eruptions, and the catastrophic consequences that these events might have in the surrounding populations.