Tsunamis

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.

  • Continental shelf shape leads to long-lasting tsunami edge waves during Mexican earthquake
    on May 17, 2018 at 3:33 pm

    The shape of the continental shelf off the southern Mexican coast played a role in the formation of long-lasting tsunami edge waves that appeared after last September's magnitude 8.2 earthquake. […]

  • How large can a tsunami be in the Caribbean?
    on May 16, 2018 at 2:23 pm

    The 2004 Indian Ocean tsunami has researchers reevaluating whether a magnitude 9.0 megathrust earthquake and resulting tsunami might also be a likely risk for the Caribbean region, seismologists report. […]

  • Eyewitness accounts fill in details of 1946 Dominican Republic tsunami
    on May 15, 2018 at 2:56 pm

    Almost 70 years later, the man remembers the August day in Playa Rincon, when he clung to the top of an almond tree to survive a tsunami where the waters rushed about 700 meters inland after a magnitude 8.1 earthquake. His recollections and other astonishing eyewitness accounts of the tsunami that struck the Dominican Republic in 1946 are being used to reconstruct the tsunami's heights and inundation distances. […]

  • Historical records help uncover new mechanism in deadly 1906 Taiwan quake
    on May 1, 2018 at 5:08 pm

    Researchers reexamining historical seismograms from the 1906 Meishan earthquake have uncovered a new mechanism for the quake, one of the deadliest to ever strike Taiwan. […]

  • Small earthquakes caused by migrating gasses in the underground
    on May 1, 2018 at 12:51 pm

    The metropolitan area of Istanbul with around 15 million inhabitants is considered to be particularly earthquake-prone. In order to be able to assess the risk correctly, researchers must decipher the processes underground. Below the Marmara Sea, an international research team detected earthquakes that were not directly caused by tectonic stresses but by rising natural gas. […]

  • Tsunamis could cause beach tourism to lose hundreds of millions of dollars every year
    on April 12, 2018 at 2:29 pm

    Going to the beach this summer? European tourists are more frequently going to places with significant tsunami risk, researchers have found. […]

  • Water pressure a critical factor for mega-earthquakes
    on April 2, 2018 at 11:26 pm

    Scientists propose a mechanism that explains how the biggest earthquake ever happened and how more than 50 years later another large earthquake in the same region released some of the stress that had built up in the depth. Water pressure in the underground plays a crucial role in both cases. […]

  • Modeling future earthquake and tsunami risk in southwestern Japan
    on April 2, 2018 at 4:32 pm

    Geoscience researchers unveil new, GPS-based methods for modeling earthquake-induced tsunamis for southwestern Japan along the Nankai Trough. A Nankai-induced tsunami is likely to hit there in the next few decades, and has the potential to displace four times the number of people affected by the massive Tohoku tsunami of 2011, according to new research. […]

  • Calculating the impacts of natural events on wildlife
    on March 30, 2018 at 2:58 pm

    A new method could help scientists understand how wildlife populations are affected by major natural events, such as hurricanes, severe winters, and tsunamis. […]

  • 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. […]