The Japan is located in an area where several continental and oceanic plates meet and create a major fault line; this is the cause of frequent earthquakes and the presence of many volcanoes and hot springs across Japan. If earthquakes occur below or close to the ocean, they may trigger tidal waves known as tsunami. Historic earthquakes
Here is a brief history of earthquake in Japan.
Many parts of this country have experienced devastating earthquakes and tidal waves in the past. The Great Kanto Earthquake, the worst in Japanese history, hit the Kanto plain around Tokyo in 1923 and resulted in the deaths of over 100,000 people. In January 1995 a strong earthquake hit the city of Kobe and surroundings. Known as the Southern Hyogo Earthquake or Great Hanshin Earthquake, it killed 6,000 and injured 415,000 people. 100,000 homes were completely destroyed and 185,000 were severely damaged Earthquake measurement
Question arises that how the earthquake is measured?
The Japanese "shindo" scale for measuring earthquakes is more commonly used in Japan than the Richter scale to describe earthquakes. Shindo refers to the intensity of an earthquake at a given location, i.e. what people actually feel at a given location, while the Richter scale measures the magnitude of an earthquake, i.e. the energy an earthquake releases at the epicenter. 2011 Earthquake
The 2011 Sendai earthquake and tsunami was a 9.0 mega thrust earthquake off the coast of Japan that occurred at 14:46 JST on Friday 11 March 2011. The epicenter was 130 kilometers off the east coast of the Oshika Peninsula, Tokyo, with the hypocenter at a depth of 32 km (20 mi). The earthquake triggered tsunami warnings and evacuations along Japan's Pacific coast and in at least 20 countries, including the entire Pacific coast of North America and South America. The earthquake created extremely destructive tsunami waves of up to 10 meters that struck Japan minutes after the quake, in some cases...