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Earthquakes News -- ScienceDaily Earthquake News. Early detection, historic earthquakes, earthquake measurement, smart building methods and more in our earthquake research news.

  • Seafloor sediments appear to enhance Earthquake and Tsunami danger in Pacific Northwest
    on November 20, 2017 at 5:45 pm

    The Cascadia Subduction Zone off the coast of the Pacific Northwest has all the ingredients for making powerful earthquakes -- and according to the geological record, the region is due for its next 'big one.' A new study has found that the occurrence of these big, destructive quakes and associated devastating tsunamis may be linked to compact sediments along large portions of the subduction zone. […]

  • Structure and origins of glacial polish on Yosemite's rocks
    on November 15, 2017 at 6:38 pm

    The glaciers that carved Yosemite Valley left highly polished surfaces on many of the region's rock formations. These smooth, shiny surfaces, known as glacial polish, are common in the Sierra Nevada and other glaciated landscapes. Geologists have now taken a close look at the structure and chemistry of glacial polish and found that it consists of a thin coating smeared onto the rock as the glacier moved over it. […]

  • Largest, longest multiphysics earthquake simulation created to date
    on November 13, 2017 at 4:10 pm

    A multi-disciplinary team has simulated the largest, longest multiphysics earthquake simulation to date. […]

  • Why did the Earth's ancient oceans disappear?
    on November 9, 2017 at 2:38 pm

    We think of oceans as being stable and permanent. However, they move at about the same speed as your fingernails grow. Geoscientists have now found a novel way of mapping the Earth’s ancient oceans. […]

  • Japanese earthquake zone strongly influenced by the effects of friction
    on October 26, 2017 at 5:52 pm

    Researchers have identified that subduction-related friction and pre-existing fault structures in the Eurasian/Philippine Sea plate boundary significantly influences earthquake location and rupturing behavior. The degree of friction decreases towards the Nankai Trough, resulting in non-uniform stress accumulation that has influenced the location of historic and modern earthquakes in the region. […]

  • Raton Basin earthquakes linked to oil and gas fluid injections
    on October 24, 2017 at 6:17 pm

    A rash of earthquakes in southern Colorado and northern New Mexico recorded between 2008 and 2010 was likely due to fluids pumped deep underground during oil and gas wastewater disposal, suggests a new study. […]

  • Supercomputers help scientists improve seismic forecasts for California
    on October 24, 2017 at 5:37 pm

    Researchers have used the Stampede1 and 2 supercomputers to complete one of the world's largest earthquake simulation models: The Uniform California Earthquake Rupture Forecast (UCERF3). The simulations showed that in the week following a magnitude 7.0 earthquake, the likelihood of another magnitude 7.0 quake in California would be up to 300 times greater than the week before. […]

  • Western US Quake? Fifty simulations of the 'Really Big One' show how a 9.0 Cascadia earthquake...
    on October 23, 2017 at 2:18 pm

    The largest number yet of detailed simulations for how a Cascadia Subduction Zone earthquake might play out provides a clearer picture of what the region can expect when the fault unleashes a 9.0 earthquake. […]

  • Geophysicist finds teaching opportunities in movie mistakes
    on October 23, 2017 at 1:46 pm

    Few scientists regard the 1997 movie Volcano, in which flaming magma suddenly spews from the La Brea tar pits and incinerates much of Los Angeles, as a means to foster scientific literacy. After all, Southern California has no magma to spew. But one geophysicist sees it differently. […]

  • Scientists determine source of world's largest mud eruption
    on October 17, 2017 at 3:43 pm

    More than 11 years after the Lusi mud volcano first erupted on the Indonesian island of Java, researchers may have figured out why the mudflows haven't stopped: deep underground, Lusi is connected to a nearby volcanic system. […]

  • Waves in lakes make waves in the Earth
    on October 16, 2017 at 12:19 pm

    Scientists report that small seismic signals in lakes can aid science. As a record of wave motion in a lake, they can reveal when a lake freezes over and when it thaws. And as a small, constant source of seismic energy in the surrounding earth, lake microseisms can shine a light on the geology surrounding a lake. […]

  • Combination of El Niño and 2016 Ecuador earthquake likely worsened Zika outbreak
    on October 13, 2017 at 12:02 am

    A Zika virus outbreak in coastal Ecuador in 2016 was likely worsened by a strong El Niño and a magnitude 7.8 earthquake that struck the region in April, according to a new study. […]

  • Climate change may accelerate infectious disease outbreaks, say researchers
    on October 12, 2017 at 4:28 pm

    Aside from inflicting devastating natural disasters on often vulnerable communities, climate change can also spur outbreaks of infectious diseases like Zika , malaria and dengue fever, according to a new study. […]

  • Old Faithful's geological heart revealed
    on October 5, 2017 at 11:02 pm

    Scientists have mapped the near-surface geology around Old Faithful, revealing the reservoir of heated water that feeds the geyser's surface vent and how the ground shaking behaves in between eruptions. […]

  • Do earthquakes have a 'tell'?
    on October 5, 2017 at 7:11 pm

    Data scientists and seismologists could potentially forecast strong earthquakes through algorithms designed to detect and monitor 'deep tremor.' […]

  • Assessing regional earthquake risk and hazards in the age of exascale
    on October 4, 2017 at 4:05 pm

    Researchers are building the first-ever end-to-end simulation code to precisely capture the geology and physics of regional earthquakes, and how the shaking impacts buildings. […]

  • Earth's tectonic plates are weaker than once thought
    on October 3, 2017 at 1:40 pm

    A long-standing question regarding the strength of olivine, the primary component of Earth's mantle, has now been answered. This study has implications for how we understand now tectonic plates form and move. […]

  • Erosion from ancient tsunami in Northern California
    on September 29, 2017 at 3:30 pm

    Geologists use ground-penetrating radar to determine the breadth and depth of erosion from an ancient tsunami in Northern California. […]

  • Database of earthquakes triggered by human activity is growing, with some surprises
    on September 28, 2017 at 6:20 pm

    The Human-Induced Earthquake Database (HiQuake), the world's most complete database of earthquake sequences proposed to have been triggered by human activity, now includes approximately 730 entries, according to a report. […]

  • Large earthquakes along Olympic Mountain faults, Washington State, USA
    on September 28, 2017 at 1:42 pm

    A comprehensive study of faults along the north side of the Olympic Mountains of Washington State emphasizes the substantial seismic hazard to the northern Puget Lowland region. The study examined the Lake Creek-Boundary Creek and Sadie Creek faults along the north flank the Olympic Mountains, and concludes that there were three to five large, surface-rupturing earthquakes along the faults within the last 13,000 years. […]

  • Measuring a crucial mineral in the mantle
    on September 13, 2017 at 11:29 pm

    New research resolves 40 years of debate about the strength of olivine, the most abundant mineral in the Earth's mantle. Measuring the strength of olivine is critical to understanding how strong tectonic plates are, which, in turn, matters to how plates break and create subduction zones. […]

  • Earthquake triggers 'slow motion' quakes in New Zealand
    on September 11, 2017 at 4:27 pm

    Slow slip events, a type of slow motion earthquake that occurs over days to weeks, are thought to be capable of triggering larger, potentially damaging earthquakes. In a new study, scientists have documented the first clear-cut instance of the reverse -- a massive earthquake immediately triggering a series of large slow slip events. […]

  • Machine-learning earthquake prediction in lab shows promise
    on August 30, 2017 at 4:25 pm

    By listening to the acoustic signal emitted by a laboratory-created earthquake, a computer science approach using machine learning can predict the time remaining before the fault fails. […]

  • The losses that come after the earthquake: Devastating and costly
    on August 25, 2017 at 2:40 pm

    Nature's most unpredictable and one of her most devastating natural disasters. When high intensity earthquakes strike they can cause thousands of deaths and billions of dollars in damaged property. For decades, experts have studied major earthquakes; most have focused on fatalities and destruction in terms of the primary effects, the shaking unleashed. […]

  • More than expected hidden beneath Andean Plateau
    on August 23, 2017 at 5:12 pm

    Seismologists investigating how Earth forms new continental crust have compiled more than 20 years of seismic data from a wide swath of South America's Andean Plateau and determined that processes there have produced far more continental rock than previously believed. […]

  • Ancient Earth’s hot interior created 'graveyard' of continental slabs
    on August 22, 2017 at 3:59 pm

    Plate tectonics has shaped the Earth's surface for billions of years: Continents and oceanic crust have pushed and pulled on each other, continually rearranging the planet's façade. As two massive plates collide, one can give way and slide under the other in a process called subduction. The subducted slab then slips down through the Earth's viscous mantle, like a flat stone through a pool of honey. […]

  • Earth history: How continents were recycled
    on August 22, 2017 at 2:32 pm

    Researchers have used computer simulations to analyse how plate tectonics have evolved on Earth over the last three billion years. They show that tectonic processes have changed in the course of the time, and demonstrate how those changes contributed to the formation and destruction of continents. The model reconstructs how present-day continents, oceans and the atmosphere may have evolved. […]

  • New map of seismic hazards created
    on August 21, 2017 at 10:34 pm

    Builders of hydroelectric dams are required to perform seismic hazard studies before their designs are approved. Researchers are working on a new national map of seismic hazards for Brazil. In preparing the seismic hazard map, the researchers first conducted a survey of the tremors that have occurred in Brazil in recent decades in order to determine the level of seismic activity in each region. […]

  • How friction evolves during an earthquake
    on August 16, 2017 at 12:49 pm

    Using high-speed photography and digital image correlation techniques, engineers show that friction along a faultline has a complex evolution during an earthquake that is dictated, in part, by slip velocity: the sliding of the two sides of the fault against one another. […]

  • New plate adds plot twist to ancient tectonic tale
    on August 14, 2017 at 2:44 pm

    Misfit plates in the Pacific led scientists to the discovery of a microplate between the Galapagos Islands and the South American coast. […]