@Milan1999 5 June 2021 more from that month

Earthquake Facts: 5 Things You Never Knew About Earthquakes Earthquakes are one of our most destructive natural hazards on the planet, caused by the constant movement of tectonic plates as they break into each other or separate. Thanks to rather smart scientific equipment, we know more about these events that are destroying the country than ever before. Here are 5 fantastic facts about earthquakes you’ve probably never heard of before ,, 1. Earthquakes can last shorter days You know those days at work when the end can’t come soon? Get ready to thank the Tohoku earthquake in Japan, because since 2011, every day has been 1.8 microseconds shorter. The earthquake turned the Earth a little, changing its rotation around an imaginary line called the axis of the figure. The earth's mass is balanced around the axis of the figures and oscillates as it rotates. That shift naturally changes by one meter per year due to moving glaciers and ocean currents, but since the 2011 earthquake, the Earth’s oscillation has increased by about 17 centimeters. Advertisement 2. Earthquakes can occur outside the Earth We are not the only ones suffering from the devastating effects of earthquakes, there is also evidence of "marches" on Mars, vibrations on Venus, movement on many moons of Jupiter, and one of the Moon's Moons - Titan - also shows signs , trembling. Seismometers on the Moon have detected tidal "moon strikes" caused by the Earth's gravity, vibrations of meteorites and vibrations caused by the warming of the Moon's cold crust after a two-week lunar night. 3. Earthquakes were recorded using pots The oldest known seismoscope was invented by a Chinese philosopher in 132 AD. He didn’t actually record ground movements, but simply showed that the quake had hit. The cylindrical vessel had eight dragon heads around the top, facing the eight main directions of the compass, and each was below it a frog with an open mouth. Inside the mouth of each dragon was a ball that would fall into the mouth of the frog below when an earthquake occurred. The direction of the tremor could be determined by which dragon released its ball. It is not known what was inside the vessel, but it is thought that some kind of pendulum was used to feel the tremor and activate the ball in the dragon's mouth. Advertisement 4. About 500,000 earthquakes occur annually Luckily, most of them are just tiny shivers. Only about 100,000 earthquakes can be felt each year, and of those only 100 or so, real damage can be created. In Southern California alone, there are about 10,000 each year, but most think these are caused by the overweight tourists who are in a hurry to rest much-needed rest. 5. California experienced a major earthquake As for California, the San Andreas bug stretches 1,300 kilometers along its coast, and when it fires, it unbuttons along its length. Each part of the fault releases energy - the longer the fault, the more energy is released and so the greater the earthquake , and zip, it seems. Scientists believe the San Andreas fault outgrew a potential earthquake of magnitude 8.1 over 547 kilometers. The southern segment remained static for more than a century, allowing enormous stresses to be created.