An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves.Earthquakes can range in size from those that are so weak that they cannot be felt to those violent enough to propel objects and people into the air, and wreak destruction across entire cities. 11 countries were hit and 225,000 lives were lost that year. 2. An earthquake is capable of releasing energy which is 100 times more powerful than the energy released by atomic bomb dropped on Japan’ Hiroshima in 1945. 27. Quakes on one side of Earth can shake the other side. Through advanced detection systems, scientists can alert residents of an upcoming quake but only seconds or sometimes minutes in advance. Rayleigh waves are surface acoustic waves that travel through earth’s surface. They move at a rate of 3 inches per year. See: thank you so much this helped me on my school work!!!! March 14 2011. The longest earthquake in recorded history took place in 2004 in Indian Ocean. Well that’s because some are more powerful than others. Tremors Felt in the Neighboring Countries The country was also the victim of … The biggest factor in determining the impact on humans of an earthquake all depends on where the epicenter is located. Epicenter is the point on ground right above the focus of the earthquake. 22. The actual figure may be way more than that. The most deadly earthquakes occur in populated areas with poor infrastructure or in the ocean close to land which causes a giant wave known as a Tsunami. Interestingly ionosphere is around 80-480 kilometers or 50-300 miles above the surface of earth. Read more about Pagodas here. The nature of earthquakes Causes of earthquakes. Earthquakes produce a type of wave known as Rayleigh wave. They actually cause minor tides on earth’s crust. the destructive power of an earthquake. You can think of tectonic plates like Earth’s egg shell, the hard and sometimes cracked shell around a fluid, moving center. Majority of these are too weak to be recorded. The energy release best indicates Do you know what a Pagoda is? Tectonic plates move at a very slow pace. 12. year. However, NEIC or National Earthquake Information Center records around 20,000 quakes every year of which only 100 or so are capable of causing damage. During 1930s Richter Scale was used for measuring the size of earthquakes. Many Southern California residents felt the earth shake violently under them twice in two days last week. As more and more seismographs are installed in the world, more earthquakes can be and have been located. An earthquake may last anywhere between a few seconds and a few minutes. Page, Jake and Charles Officer. © 2020 | Facts Legend | A Unit of Akṣa Ventures. Aftershocks may last for days and even weeks and even years. The 2004 Indian Ocean earthquake, according to Seismologists, weakened the famous San Andreas Fault of California. Earth’s 80% of earthquakes occur near Pacific Ring of Fire. As these plates separate and collide, it causes vibrations beneath the ground which can cause a lot of damage on the surface. World Earthquakes Live™ YouTube MODERATE EARTHQUAKE A moderate earthquake hit VOLCANO ISLANDS, JAPAN REGION with a moment magnitude of Mw 5.0 at a depth of 80 km (intermediate-depth earthquake, 4h and 25m ago) Washington D.C.: National Geographic. releases about 32 times more energy. Earthquakes: Witness to Disaster. Find a vetted, verified project that you want to make a donation to: GlobalGiving makes it easy and safe for you to give to local projects anywhere in the world. URL: http://neic.usgs.gov/neis/eqlists/eqstats.html Antarctica has the least amount of earthquakes of any continent. Collapse of buildings, landslides, avalanches, volcanic eruptions and tsunamis triggered by earthquakes are actually responsible for killing people. Fast facts: Earthquakes and tsunamis. What is referred to as deep earthquake is actually an earthquake occurring on the crust but the only difference is that the crust slides down below another tectonic plate. By using our website, you agree to the cookie and privacy policy of Facts Legend. Interesting Earthquake Facts: 6-10. MMS actually measure the size of an earthquake in terms of energy released by it. 2006. It lasted for 10 minutes. http://earthquake.usgs.gov/learn/glossary/?term=hypocenter, http://earthquake.usgs.gov/research/earlywarning/. Even meteor impacts and volcanic eruptions can cause earthquakes. The country experiences thousands of earthquakes each year but most of them are too weak to cause massive damage. Similarly, the earthquake that occurred in Chile in 1960 was so massive that the entire earth was shaken for several days. Canals and ponds may start releasing strange smell before an earthquake. The NEIC now locates about 50 earthquakes each day, or about 8. However, if there is a large earthquake the aftershock sequence will produce many more earthquakes of all magnitudes for months. Colson Mary. 26. 2006. Washington D.C.: National Geographic. 2004. 12. The fastest seismic wave recorded till date is 225 miles or 360 kilometers an hour. Colson Mary. 20,000 a year. There are significantly less earthquakes on the southern hemisphere, due to the shapes of earth’s tectonic plates. A major earthquake is usually preceded by a series of smaller quakes. These plates keep moving constantly. 11 Facts About Earthquakes (and how to help) Tweet: 1. This is the region where many of earth’s tectonic plates meet. Second to Pacific Ring of Fire is the Alpide Belt region where major earthquakes take place. This table shows that a magnitude 7.2 earthquake produces Earthquakes can happen anywhere; even on the moon! “Moonquakes” are typically less intense than earthquakes because they are caused by drastic changes in surface temperature rather than shifts in tectonic plates.

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