Tsunamis News -- ScienceDaily Tsunami News. Causes of tsunamis, status of tsunami devastated regions, and locations where scientists predict tsunamis might occur in the future. Read about tsunamis and earthquakes.

  • Seismologists introduce new measure of earthquake ruptures
    on March 21, 2018 at 6:14 pm

    A team of seismologists has developed a new measurement of seismic energy release that can be applied to large earthquakes. It provides a measure of earthquake rupture complexity that better captures variations in the amount and duration of slip along the fault for events that may have similar magnitudes. […]

  • Storm waves can move boulders we thought only tsunamis had the power to shift
    on February 28, 2018 at 2:21 pm

    It's not just tsunamis that can change the landscape: storms shifted giant boulders four times the size of a house on the coast of Ireland in the winter of 2013-14, leading researchers to rethink the maximum energy storm waves can have - and the damage they can do. Four years ago, storms moved huge boulders along the west coast of Ireland. The same storms shifted smaller ones as high as 26 meters above high water and 222 meters inland. Many of the boulders moved were heavier than 100 tons, and the largest moved was 620 tons - the equivalent of six blue whales or four single-story houses. It was previously assumed that only tsunamis could move boulders of the size seen displaced in Ireland, but the new paper provides direct evidence that storm waves can do this kind of work. […]

  • Tiny fossils, huge landslides: Are diatoms the key to Earth's biggest slides?
    on February 12, 2018 at 6:34 pm

    The biggest landslides on Earth aren't on land, but on the seafloor. These mega-slides can move thousands of cubic kilometers of material, and sometimes trigger tsunamis. Yet, remarkably, they occur on nearly flat slopes of less than three degrees. […]

  • September 2017 earthquakes highlight successes of Mexico's early warning system
    on February 6, 2018 at 5:10 pm

    Mexico's earthquake early warning system gave Mexico City's residents almost two minutes of warning prior to the arrival of strong seismic waves from the Sept. 7, 2017 Tehuantepec earthquake centered off the southern coast of Mexico, according to a new report. […]

  • Satellite-based earthquake early warning system tested against Chilean great quakes
    on February 6, 2018 at 5:10 pm

    Researchers testing a satellite-based earthquake early warning system developed for the US West Coast found that the system performed well in a 'replay' of three large earthquakes that occurred in Chile between 2010 and 2015. […]

  • Could underwater sound waves be the key to early tsunami warnings?
    on January 24, 2018 at 5:31 pm

    Mathematicians have devised a way of calculating the size of a tsunami and its destructive force well in advance of it making landfall by measuring fast-moving underwater sound waves, opening up the possibility of a real-time early warning system. […]

  • A society divided by reconstruction
    on January 12, 2018 at 3:51 pm

    In 2004, a tsunami devastated much of the Indonesian city of Banda Aceh. An international team of researchers has studied the long-term impact that rebuilding efforts in coastal areas have had on the community. […]

  • Residual strain despite mega earthquake
    on December 13, 2017 at 5:00 pm

    On Christmas Day 2016, the earth trembled in southern Chile. In the same region, the strongest earthquake ever measured occurred in 1960. A comparison of data from seismic and geodetic measurements during and after both earthquakes shows that the energy released by the 2016 quake accumulated over more than 56 years. According to this, the 1960 quake, despite its immense strength, must have left some strain in the underground. […]

  • Unearthing the underground effects of earthquakes and volcanoes
    on December 6, 2017 at 5:25 pm

    Researchers analyzed high-resolution seismic velocity data from 36 seismograph stations across the island of Kyushu to identify variations before, during, and after the MW 7.0 2016 Kumamoto earthquake. Velocity decreased in the region of the rupture fault when the earthquake struck, and then gradually recovered, although this recovery showed spatial variability. This variability corresponded to aftershock concentration and volcanic activity. The findings may be useful for disaster prediction and preparedness. […]

  • Earthquakes in the Himalaya are bigger than in the Alps because tectonic plates collide faster
    on December 4, 2017 at 2:18 pm

    Earthquakes that happen in densely populated mountainous regions, such as the Himalaya, spell bigger earthquakes because of a fast tectonic-plate collision, according to a new study. […]

  • New early gravity signals to quantify the magnitude of strong earthquakes
    on November 30, 2017 at 7:10 pm

    After an earthquake, there is a disturbance in the field of gravity almost instantaneously. This could be recorded before the seismic waves. Researchers have managed to observe these weak signals and to understand where they come from. Because they are sensitive to the magnitude of earthquakes, these signals may play an important role in the early identification of the occurrence of a major earthquake. […]

  • 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. […]

  • 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. […]

  • 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. […]

  • 6,000-year-old skull could be from the world's earliest known tsunami victim
    on October 25, 2017 at 7:06 pm

    Scientists have discovered what they believe is the skull of the earliest known tsunami victim, a person who lived 6,000 years ago in Papua New Guinea. The skull itself was found almost a hundred years ago, but recent analysis of the sediments found with the skull reveals that they bear distinctive hallmarks of tsunami activity. […]

  • New magma pathways after giant lateral volcano collapses
    on October 23, 2017 at 6:55 pm

    Giant lateral collapses are huge landslides occurring at the flanks of a volcano. Such collapses are rather common events during the evolution of a large volcanic edifice, often with dramatic consequences such as tsunami and volcano explosions. These catastrophic events interact with the magmatic activity of the volcano, as new research suggests. […]

  • Risk of tsunamis in Mediterranean Sea has been overstated, say experts
    on October 11, 2017 at 6:48 pm

    A review of geological evidence for tsunamis during the past 4500 years in the Mediterranean Sea has revealed that as many as 90 per cent of these inundation events may have been misinterpreted by scientists and were due to storm activity instead. […]

  • New study analyzes volcanic fatalities in more detail than ever before
    on October 6, 2017 at 2:18 pm

    Building on existing information and databases relating to volcanic fatalities, scientists have, for the first time, been able to classify victims by activity or occupation and look at the distance of their death from the volcano. […]

  • 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. […]

  • Tsunami enabled hundreds of aquatic species to raft across Pacific
    on September 28, 2017 at 6:21 pm

    The 2011 Japanese tsunami set the stage for something unprecedented. For the first time in recorded history, scientists have detected entire communities of coastal species crossing the ocean by floating on makeshift rafts. Nearly 300 species have appeared on the shores of Hawaii and the US West Coast attached to tsunami debris, marine biologists discovered. […]

  • 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. […]

  • 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. […]

  • High tsunami danger in Alaska, perhaps elsewhere
    on August 1, 2017 at 2:17 pm

    Scientists probing under the seafloor off Alaska have mapped a geologic structure that they say signals potential for a major tsunami in an area that normally would be considered benign. They say the feature closely resembles one that produced the 2011 Tohoku tsunami off Japan, killing some 20,000 people and melting down three nuclear reactors. Such structures may lurk unrecognized in other areas of the world, say the scientists. […]

  • Group relocation preserves social connections among elderly Japanese Tsunami survivors
    on July 26, 2017 at 6:16 pm

    Relocating in groups, rather than individually, increased informal socializing and social participation among older survivors of the 2011 Great East Japan Earthquake and Tsunami, a new study shows. […]

  • Sea cave preserves 5,000-year snapshot of tsunamis
    on July 19, 2017 at 12:48 pm

    Scientists digging in a sea cave in Indonesia have discovered the world's most pristine record of tsunamis, a 5,000-year-old sedimentary snapshot that reveals for the first time how little is known about when earthquakes trigger massive waves. […]

  • Forgotten archives reveal street-level impact of 1918 Puerto Rico earthquake and tsunami
    on July 5, 2017 at 5:29 pm

    Repair petitions filed in the wake of the 1918 Puerto Rico earthquake and tsunami, stored and forgotten in the San Juan archives for nearly 100 years, are giving scientists a house-by-house look at the damage wrought by the magnitude 7.3 event. […]

  • Distant earthquakes can cause underwater landslides
    on June 27, 2017 at 5:44 pm

    New research finds large earthquakes can trigger underwater landslides thousands of miles away, weeks or months after the quake occurs. […]

  • Japanese slow earthquakes could shed light on tsunami generation
    on June 15, 2017 at 6:27 pm

    Understanding slow-slip earthquakes in subduction zone areas may help researchers understand large earthquakes and the creation of tsunamis, according to researchers who used data from instruments placed on the seafloor and in boreholes east of the Japanese coast. […]

  • New evidence reveals source of 1586 Sanriku, Japan tsunami
    on June 6, 2017 at 9:03 pm

    A team of researchers re-examined historical evidence around the Pacific and discovered the origin of the tsunami that hit Sanriku, Japan in 1586 -- a mega-earthquake from the Aleutian Islands that broadly impacted the north Pacific. Until now, this was considered an orphan tsunami, a historical tsunami without an obvious local earthquake source, likely originating far away. […]

  • Why the Sumatra earthquake was so severe
    on May 25, 2017 at 6:15 pm

    An international team of scientists has found evidence suggesting the dehydration of minerals deep below the ocean floor influenced the severity of the Sumatra earthquake, which took place on Dec. 26, 2004. […]