Irrigation significantly exacerbated the earthquake-triggered landslides in Palu, on the Indonesian island of Sulawesi, in 2018, according to an international study led by Nanyang Technological University, Singapore (NTU Singapore) scientists.
In a paper published as part of an upcoming focus section on regional seismic networks in Seismological Research Letters, University of Utah seismologist Keith Koper explains how the work of regional seismic networks in North America is contributing to nuclear test monitoring, particularly in the case of low-yield explosions.
On 22 December 2018, a flank of the Anak Krakatau plunged into the Sunda strait between the Indonesian islands of Sumatra and Java, triggering a tsunami that killed 430 people. An international research team has now shown that the volcano produced clear warning signals before its collapse. The researchers recommend to use their study to improve monitoring of volcanoes.
Reporting on 10 years of Deep Carbon Observatory research, scientists say. Just two-tenths of 1% of Earth's total carbon is above surface; Human CO2 emissions are now 40 to 100 times greater than nature's; And a handful of events over Earth 4.5 billion year existence -- immense magmatic eruptions and meteor impacts -- have caused catastrophic volumes of carbon out-gassing, leading to a warmer atmosphere, acidified oceans, and mass extinctions
Geologists have improved upon methods to map seabed rocks, helping us better understand underwater earthquakes and the tsunamis they can cause.
Stanford researchers have analyzed mountain ranges worldwide to show that a theory relating erosion and mountain height doesn't always add up.
Using an automated method to create a high-resolution map of the seismic velocity below the seafloor, researchers from Kyushu University found a large-scale gas reservoir in an area where the Earth's upper layers are being separated. This reservoir, the first of its kind, and the potential for others like it could have implications from natural resource or environmental standpoints depending on whether the trapped gas is methane or carbon dioxide and whether it remains trapped.
Volcanic eruptions and their ash clouds pose a significant hazard to population centers and air travel, especially those that show few to no signs of unrest beforehand. Geologists are now using a technique traditionally used in weather and climate forecasting to develop new eruption forecasting models. By testing if the models are able to capture the likelihood of past eruptions, the researchers are making strides in the science of volcanic forecasting.
Researchers from around the globe share what they've learned from an unprecedented amount of data collected in the Latin American Subduction Zone over the past two decades.
When Kīlauea Volcano erupted in 2018, it injected millions of cubic feet of molten lava into the nutrient-poor waters off the Big Island of Hawai'i. A study led by researchers at the University of Hawai'i at Mānoa and University of Southern California revealed that extensive phytoplankton growth was stimulated when nitrate was brought to the surface ocean as the lava warmed nutrient-rich deep waters and caused them to become buoyant.