Violent Eruption: Mystery of Volcanic Tsunami Solved After 373 Years
GEOMAR researchers reconstruct historic volcanic eruption using 3D seismics. The explosion of the underwater volcano Kolumbo in the Aegean Sea in 1650 triggered a destructive…
Tsunami News
Tsunamis are large, powerful ocean waves caused primarily by underwater earthquakes, volcanic eruptions, landslides, or meteorite impacts. When an abrupt displacement of a large volume of water occurs, it generates waves that travel across the ocean at high speeds. As these waves approach shallow coastal waters, they slow down but increase in height and energy, potentially rising to devastating heights upon reaching the shore. The impact of a tsunami can be catastrophic, leading to massive flooding, destruction of infrastructure, and loss of life. Tsunamis are distinguished from regular ocean waves by their incredible wavelength, often exceeding 100 kilometers, which allows them to carry high energy across vast distances with little loss. Early warning systems and international cooperation are crucial in mitigating the impact of tsunamis, especially in vulnerable coastal regions. The study of tsunamis is a critical part of oceanographic and geological sciences, aiming to better predict and respond to these natural disasters.
Deciphering Disasters: How Santorini’s Seafloor Is Unveiling the Secrets of Volcanic Tsunamis
The imprints left on the seafloor of the Aegean serve as valuable indicators for improved evaluation of hazards of volcanic tsunamis. The colossal Minoan eruption…
NASA’s GUARDIAN: Innovative GPS-Based Tsunami Detection System
New hazard-monitoring technology uses GPS signals to go wave-hunting in the Pacific Ring of Fire. GUARDIAN’s long-term objective is to augment early warning systems. Triggered…
Antarctica’s Massive Underwater Landslides – Which Could Generate Giant Tsunamis – Caused by Past Climate Change
Scientists have identified weak, biologically-rich sediments beneath Antarctica’s seafloor as the cause of giant underwater landslides that could generate far-reaching tsunamis. These sediments formed in…
Harnessing Artificial Intelligence for a Cutting-Edge Tsunami Early Warning System
Real-time classification of underwater earthquakes based on acoustic signals enables earlier, more reliable disaster preparation. Researchers have developed an AI-powered early warning system for tsunamis…
Ancient Volcanic Clues From the Deep: Hazards and Climate Impacts of Massive Underwater Eruptions
Bronze-age underwater volcanic deposits are helping researchers understand the size, hazards, and climate impact of massive caldera-forming eruptions. The findings will guide the development of…
Dinosaur-Killing Asteroid Triggered Monstrous Global Tsunami With Mile-High Waves
Sixty-six million years ago a miles-wide asteroid struck Earth, wiping out nearly all the dinosaurs and around three-quarters of the planet’s plant and animal species….
A Global Tsunami: How Did the Tonga Tsunami Jump From Ocean to Ocean?
Scientists explain an unusual tsunami. A new study published in the journal Nature describes the process that produced and propagated an unusual tsunami following the catastrophic…
Ancient Underwater Landslide Discovery Could Help Middle Eastern Nations Realize Tsunami Hazards
UM Rosenstiel School scientist Sam Purkis discovered evidence of a 500-year-old landslide, and a sizable tsunami, that could have implications for coastline development of coastlines…
Hidden Magnitude-8.2 Earthquake Source of Mysterious Global Tsunami
Researchers uncover why a complex earthquake in the south Atlantic sent an unexpected tsunami around the world in 2021. A 47 km-deep (29 mi-deep), magnitude…
Sulfur Dioxide From Massive Volcanic Eruption Near Tonga Spreads Over Australia
The Hunga-Tonga-Hunga-Ha’apai volcano’s eruption in 2022 was the most significant in 30 years, sending ash high into the atmosphere and causing tsunamis across the Pacific….
Indonesian Island Collapse and Devastating Tsunami Not Caused by Powerful Volcanic Blast
The 2018 collapse of Indonesia’s Anak Krakatau volcano, which triggered a devastating tsunami, resulted from long-term geological processes rather than sudden magmatic changes. Researchers from…
Early Disaster Warning: Tsunamis’ Magnetic Fields Are Detectable Before Sea Level Change
Magnetic fields from tsunamis could provide earlier warning signs than sea level changes, potentially improving disaster response and saving lives. A new study finds the…
Resolving a Dangerous Conundrum: Earthquake Depth Impacts Potential Tsunami Threat
Earthquakes of similar magnitude can cause tsunamis of greatly varying sizes. This commonly observed, but not well-understood phenomenon has hindered reliable warnings of local tsunamis….
Threat of Sudden Destruction of Coastal Cities: Humanity Does Not Have Effective Tools to Resist the Tsunami
This threatens with sudden destruction of coastal cities and numerous human casualties. An international team of scientists from 20 countries identified 47 problems that hinder…
Two of the Most Destructive Forces of Nature – Earthquakes and Tsunamis – May Be a Bigger Threat Than Thought
Two of the most destructive forces of nature — earthquakes and tsunamis — might actually be more of a threat than current estimates according to…
Ten Years After the Tsunami: One of the Hardest Hit Coastal Cities in Japan Is Still Working to Recover
On March 11, 2011, a magnitude 9.1 earthquake jolted the seafloor about 70 kilometers (45 miles) offshore of Japan’s Tohoku region. It was the largest…
Largest Earthquakes and Their Tsunamis May Be Directed by Deep, Slow-Slip Action
Megathrust earthquakes and subsequent tsunamis that originate in subduction zones like Cascadia — Vancouver Island, Canada, to northern California — are some of the most…