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Creating a Tsunami Early Warning System Using Artificial Intelligence

Apr. 25, 2023 —Researchers develop an early warning system that combines acoustic technology with AI to immediately classify earthquakes and determine potential tsunami risk. They propose using underwater microphones, called hydrophones, to measure the acoustic radiation produced by the earthquake, which carries ...

Ridgecrest Faults Increasingly Sensitive to Solid Earth Tides Before Earthquakes

Apr. 21, 2023 —Faults in the Ridgecrest, California area were very sensitive to solid earth tidal stresses in the year and a half before the July 2019 Ridgecrest earthquake ...

Turkey's Next Quake: Research Shows Where, How Bad -- But Not 'When'

Apr. 20, 2023 —Using remote sensing, geophysicists have documented the massive Feb. 6 quake that killed more than 50,000 people in Eastern Turkey and toppled more than 100,000 buildings. Alarmingly, researchers found that a section of the fault remains unbroken and locked -- a sign that the plates there may, when ...

Puerto Rico Tsunami Deposit Could Have Come from Pre-Columbian Megathrust Earthquake

Apr. 20, 2023 —Tsunami deposits identified in a coastal mangrove pond in Northwest Puerto Rico could have come from a megathrust earthquake at the Puerto Rico Trench that occurred between 1470 and 1530, according to new ...

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2022 Tongan Volcanic Explosion Was Largest Natural Explosion in Over a Century, New Study Finds

Apr. 14, 2023 —The 2022 eruption of a submarine volcano in Tonga was more powerful than the largest U.S. nuclear explosion, according to a new study. The 15-megaton ...

Earthquake Scientists Have a New Tool in the Race to Find the Next Big One

Feb. 16, 2023 —New research on friction between faults could aid in predicting the world's most powerful earthquakes. Researchers discovered that fault surfaces bond together, or heal, after an earthquake. A fault ...

Looking Back at the Tonga Eruption

Jan. 27, 2023 —A 'back-projection' technique reveals new details of the volcanic eruption in Tonga that literally shook the ...

Signals from the Ionosphere Could Improve Tsunami Forecasts

Dec. 12, 2022 —The powerful volcanic eruption in January 2022 created ripple effects throughout the world's atmosphere and oceans. Analysis of the Hunga Tonga eruption shows how signals from the ionosphere could ...

Finding Faults Deeply Stressful

Dec. 8, 2022 —Evidence that a complete stress release may have contributed to the 2011 Tohoku earthquake that broke records. Both sedimentary formations above and below the plate boundary fault lie in the stress ...

Exploring the Deep: Drones Offer New Ways to Monitor Sea Floor

Nov. 21, 2022 —Researchers have developed a novel method for measuring the earth's crust on the seafloor. A lightweight geodetic measurement device was mounted on a sea-surface landing unmanned aerial vehicle ...

Violent Supershear Earthquakes Are More Common Than Previously Thought

Oct. 31, 2022 —About 14% of magnitude 6.7 or greater strike-slip earthquakes since 2000 have been supershear. That's 50% more than previously thought. Supershear earthquakes occur when a fault ruptures faster than ...

Impact That Killed the Dinosaurs Triggered 'Mega-Earthquake' That Lasted Weeks to Months

Oct. 6, 2022 —Some 66 million years ago, a 10-kilometer asteroid hit Earth, triggering the extinction of the dinosaurs. New evidence suggests that the Chicxulub ...

Dinosaur-Killing Asteroid Triggered Global Tsunami That Scoured Seafloor Thousands of Miles from Impact Site

Oct. 4, 2022 —The miles-wide asteroid that struck Earth 66 million years ago wiped out nearly all the dinosaurs and roughly three-quarters of the planet's plant ...

Edge Waves, Continental Shelf Fueled the 2021 Acapulco Bay Tsunami

Sep. 27, 2022 —Trapped inside the shoreline of a bay, the resonant interactions of a tsunami with regular waves can prolong the tsunami disturbance. For the 2021 magnitude 7 Acapulco, Mexico earthquake and tsunami, ...