8 large earthquakes in 1975 according to USGS.
Earthquakes will often occur in Japan once every few days, give or take. This is because Japan is located on four tectonic plates, which are constantly moving and grinding together. This tectonic activity is also responsible for Japan's mountain ranges and active volcanos. The vast majority of quakes in Japan are minor and do not cause much damage if any at all. This is due to the fact that Japan's modern structures are built to withstand earthquakes to a certain scale. However, because of its high amount of tectonic activity, Japan is more prone to get major, destructive earthquakes than most other nations; most notably the Great Kanto Earthquake (in 1923), the 6.9 magnitude Kobe earthquake in 1995, and most recently the 8.9 magnitude quake that struck on 11th March 2011.
There are so many earthquakes in Japan because the country is in what is called the Pacific Ring of Fire which is an area where large numbers of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean. The Ring of Fire has 452 volcanoes and is home to over 75% of the world's active and dormant. Another reason why Japan has so many earquakes is because there are so many different tectonic plates (layers of the earth's crust) underneath it and each plate keeps rubbing with the other plates. Earthquakes cause a bit of damage but not a lot in Japan, this is because they have happened lots of times so people in Japan have managed create buildings that probabley won't get destroyed by an earthquake. Japan also has an Earthquake and tsunami warnings which are basically alarms so they knew when an earthquake was happening. most houses in Japan are made out of cheap, light materials so they won't kill people who are inside.
This is a tough question to answer because earthquakes occur in so many places all over the world. They are generally recorded by magnitute, death tolls, and frequency for each country, but I was unable to find a list that compiled all of the data together. For more information, please refer to the Related Link below.
on 11th march 2011 at 9.am earthquake occur exactly in Japan
Japan is stuctured mainly from volcanos and earthquakes, it is made up of these things becuase there are 3 tectonic plates near or on japan(tectonic plate=earths crust/a part of it) and the tectonic plates constantly move and the eurasain plate goes over the pacific plate which is a hard process and therefore creates the earthquake and possibly a tsunami P.S: i cant remeber the 3rd plate :3 o and on the island Hokkido there isnt many there as it is close to the 3rd one that doesnt move much :3 :D
One 8.9 Magnitude and about 100 6.0 Aftershocks
Because the island of Japan lies in an area where several plates meet, it has experienced frequent earthquakes. Earthquakes are caused by the release of energy or seismic waves when these plates move. See the related links below for a list of earthquakes that have hit Japan in the past. The most recent earthquake and biggest to ever hit Japan occured March 11, 2011 and measured 8.9 on the Richter scale.
1 big one and at least >200 aftershocks
As of Oct 2011 there were 17 earthquakes of magnitude 7.0 and greater in 2011 with the largest being magnitude 9.0 in Japan on March 11th. The list of earthquakes by year (1990-Present) or by country can be found at the USGS Earthquake Hazards website. It provides a list of significant earthquakes for 2011 as well as a worldwide map of earthquakes for 2011. See link below maps, lists, and statistics.
Christchurch, New Zealand has experienced several significant earthquakes, with the most notable being the Canterbury Earthquake sequence in 2010 and 2011. These earthquakes caused widespread damage and loss of life in the region.
japan
One 9.0Near the East Coast of Honshu, Japan 2011/03/11 05:46:23
Yes, Japan is an earthquake-prone spot. Japan is more likely to have earthquakes than many other countries.
about 1,300,000
Earthquakes are not only in Japan - they happen all over the world. In the last two years there have been notable earthquakes in Japan, China, New Zealand and many other places around the world.
No. It is only one of many times that an earthquake and tsunami have hit Japan. Earthquakes in subduction zones such as the one of the coast of Japan often trigger tsunamis. The March 2011 earthquake, at magnitude 9.0, was the strongest on record in Japan though.
There are many earthquakes and volcanic eruptions in Japan. ----