Episodes

  • 1575 Valdivia earthquake

    1575 Valdivia earthquake
    Jul 5 2026
    The 1575 Valdivia earthquake occurred at 14:30 local time on December 16. It had an estimated magnitude of 8.5 of on the surface-wave magnitude scale and an estimated magnitude of 9.0+ on the Moment magnitude scale and led to the flood of Valdivia, Chile. Pedro Mariño de Lobera, who was corregidor of Valdivia by that time, wrote that the waters of the river opened like the Red Sea, one part flowin
    Show More Show Less
    1 min
  • 1861 Sumatra earthquake

    1861 Sumatra earthquake
    Jul 5 2026
    The 1861 Sumatra earthquake occurred on 16 February and was the last in a sequences of earthquakes that ruptured adjacent parts of the Sumatran segment of the Sunda megathrust. It caused a devastating tsunami which led to several thousand fatalities. The earthquake was felt as far away as the Malay peninsula and the eastern part of Java. The rupture area for the 2005 Nias–Simeulue earthquake is si
    Show More Show Less
    1 min
  • 2018 Hawaii earthquake

    2018 Hawaii earthquake
    Jul 4 2026
    On May 4, 2018, an earthquake with a magnitude of Mw 6.9 struck Hawaii island in the Hawaii archipelago at around 12:33 p.m. local time. The earthquake's epicenter was near the south flank of Kīlauea, which has been the site of seismic and volcanic activity since late April of that year. According to the United States Geological Survey the quake was related to the new lava outbreaks at the volcano
    Show More Show Less
    1 min
  • Great Atlanta fire of 1917

    Great Atlanta fire of 1917
    Jul 4 2026
    The Great Atlanta Fire of 1917 began just after noon on 21 May 1917 in the Old Fourth Ward of Atlanta, Georgia. It is unclear just how the fire started, but it was fueled by hot temperatures and strong winds which propelled the fire. The fire, which burned for nearly 10 hours, destroyed 300 acres (120 ha) and 1,900 structures displacing over 10,000 people. Damages were estimated at $5 million, ($1
    Show More Show Less
    1 min
  • 1303 Hongdong earthquake

    1303 Hongdong earthquake
    Jul 4 2026
    The 1303 Hongdong earthquake occurred in Yuan dynasty of the Mongol Empire, on September 25. The shock was estimated to have a moment magnitude of 7.6 and it had a maximum Mercalli intensity of XI (Extreme). This was one of the most deadly earthquakes in China, in turn making it one of the top disasters in China by death toll. == Geology == In 2018, the epicentre was revised to be at 36.8°N 111.
    Show More Show Less
    1 min
  • 2017 Pohang earthquake

    2017 Pohang earthquake
    Jul 3 2026
    The 2017 Pohang earthquake, measuring magnitude 5.4 on the local magnitude scale (5.5 Mw), struck Heunghae, Pohang, South Korea on November 15, 2017, and the hypocenter was 7 km below the surface. It is tied with the 2016 Gyeongju earthquake as the country's strongest earthquake in modern history since seismological observations started in Korea in 1978, and the most destructive ever recorded with
    Show More Show Less
    1 min
  • 1940 Vrancea earthquake

    1940 Vrancea earthquake
    Jul 3 2026
    The 1940 Vrancea earthquake, also known as the 1940 Bucharest earthquake, (Romanian: Cutremurul din 1940) occurred on Sunday, 10 November 1940, in Romania, at 03:39 (local time), when the majority of the population was at home. The 1940 earthquake registered a magnitude of 7.7 on the moment magnitude scale, being the strongest earthquake recorded in the 20th century in Romania. Its epicenter lay i
    Show More Show Less
    1 min
  • 1868 Hawaii earthquake

    1868 Hawaii earthquake
    Jul 3 2026
    The 1868 Hawaiʻi earthquake was the largest recorded in the history of Hawaiʻi island, with an estimated magnitude of 7.9 Mfa and a maximum Mercalli intensity of X (Extreme). The earthquake occurred at 4 p.m. local time on April 2, 1868, and caused a landslide and tsunami that led to 77 deaths. The aftershock sequence for this event has continued up to the present day. == Background == The islan
    Show More Show Less
    1 min