Last week saw a surge in seismic and volcanic activity, even in regions where such processes are usually not expected. The submarine eruption of Titan Ridge volcano in the Bismarck Sea continues to form floating pumice islands. According to specialists, such intense submarine eruptions in this area are considered extremely rare and occur once every several hundred or even thousand years.
Noticeable seismic tremors were recorded in Europe, while strong seismic events also occurred in Turkey and Peru. These phenomena, observed simultaneously across different continents, allow researchers to track how the Earth’s deep energy interacts with its surface layers.
In parallel with tectonic processes, many regions experienced extreme precipitation. In the Turkish province of Hatay, rainfall exceeded historical norms, triggering widespread flooding and landslides. In China, prolonged rains led to rising river levels and destructive mudslides that claimed dozens of lives. Even spring thunderstorms in several regions of Ukraine were accompanied by intense hail and localized flooding, demonstrating how the character of familiar weather phenomena is changing.
Over the past week, processes that are typically rare or unusually intense for their respective regions have appeared almost simultaneously in different parts of the world. These include an earthquake in seismically quiet Denmark, one of the strongest seismic events in the area of the Campi Flegrei supervolcano in Campi Flegrei, extreme precipitation in China and Turkey, and a rare submarine eruption in the Bismarck Sea.
Such anomalies help us understand how natural systems are being reorganized and which patterns may become more pronounced in the coming years. Understanding the physics of these processes is key to interpreting what is happening — phenomena that already affect everyone — and a scientific approach to studying planetary changes is becoming a priority task for society.
Chronicle of climate processes and geophysical activity for the period from May 18 to May 24, 2026.
Time codes:
00:00 Introduction
00:18 Ukraine: thunderstorms, hail, and flooding in several regions
02:20 China: earthquakes in Guangxi, swarm activity, evacuations
04:34 Peru: M6.1 earthquake, damage to cultural heritage
06:05 Denmark: rare earthquake on the island of Zealand
07:15 Turkey: M5.6 earthquake in Malatya, school closures
08:09 Italy: strong tremor at Campi Flegrei, seismic swarm
09:42 Turkey, Hatay: extreme rainfall, flooding, landslides
11:36 Bismarck Sea: rare submarine eruption of Titan Ridge volcano
13:28 Conclusions: atypical seismic and volcanic events as indicators of change
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