Intellect PlusEarthquakes & tsunamis
14 cards. Each one is a 40-second story with a five-minute read behind it.
Mapping the planet's most powerful seismic shiftsThis video explores the most significant earthquakes in recorded history. Rather than listing every tremor, it curates specific events across various magnitude ranges that were ch…
A volcanic eruption on the Korean Peninsula triggers a continental catastropheThe 2019 disaster thriller Ashfall explores the terrifying chain reaction of geological instability. Watch as a massive eruption initiates a sequence of earthquakes and explosions…
The sea retreated for an hour before it destroyed a cityIn AD 365, the Mediterranean Sea didn't just rise; it vanished. For nearly sixty minutes, the seabed of Alexandria lay exposed to the sun as ships sat stranded in the mud. Crowds …
A century-old stone carving saved lives while modern walls failedIn 2011, a massive tsunami obliterated the Japanese city of Miyako, sweeping away houses and cars as if they were toys. Yet, in one small village, a simple warning carved into a r…
How 122 million people thrive in one of Earth's most unstable landsJapan is a land defined by extremes: towering mountains, active volcanoes, and frequent tsunamis. Yet, it remains one of the world's most advanced and prosperous societies. This s…
The 4,000-mile tsunami that killed people while they slept in CaliforniaOn Good Friday in 1964, the ocean floor beneath Alaska tore open for 600 miles. While the shaking lasted only minutes, the resulting underwater landslides turned harbors into wave…- The science behind the 2004 Indian Ocean tsunamiThe 2004 tsunami was one of the deadliest natural disasters in modern history. This documentary explores the geological mechanics that turned a massive undersea earthquake into a …
The restless power reshaping New Zealand's fractured landscapeNew Zealand sits atop one of the planet's most active tectonic boundaries. This documentary explores the immense geological forces and massive fault lines that constantly reshape …
Earthquakes release energy differently depending on how deep they occurResearchers analyzing three massive earthquakes—in Sumatra, Chile, and Tohoku—found that the way these faults rupture changes significantly with depth. They observed that while th…
Slow earthquakes may reveal the stress patterns preceding massive megathrust eventsResearchers have found that slow earthquakes, which differ from traditional quakes in their slip behavior, may act as sensitive indicators of stress changes. Because these slow ev…
New estimator confirms subtle earthquake magnitude-ratio shifts despite data gapsA seismologist developed a new estimator called b-positive to measure the b-value, a number describing the ratio of large to small earthquakes. Unlike older methods, it relies onl…
New algorithm produces sharper images of earthquake locations on California faultsResearchers developed a new computational method to pinpoint exactly where earthquakes occur. By using the differences in arrival times between P-waves and S-waves, the algorithm …
Türkiye's 2023 earthquake doublet ruptured faults at dramatically different speedsSeismologists who analyzed GNSS and strong-motion data from the February 2023 Türkiye earthquake doublet found that the magnitude-7.8 quake began on a previously unmapped fault be…- Complex rupture patterns in Turkey's 2023 earthquake doublet revealed by modelingResearchers using seismic and space-geodetic data found that the destructive 2023 Kahramanmaraş earthquake doublet involved highly complex movements. By combining observations wit…