8 large earthquakes in 1975 according to USGS.
As of August 10 there were 4,308 earthquakes in or near Japan in 2011 according to the USGS earthquake data (not including small quakes under M 3.0) with March the most active month of the year. That averages over 19 earthquakes per day (note many of these are on the ocean floor with little or no effect on land).
On March 11 alone, there were 200+ aftershocks. From the 9.0 magnitude earthquake on Friday March 11 05:46:23 UTC until March 31 midnight there were approximately 2,806 earthquakes ranging in magnitude 3.9 through 7.9.
There were approximately 4,908 earthquakes in or near Japan for year 2011 according to the USGS earthquake data (not including small quakes under magnitude 3.0) with March the most active month of the year. That's on average over 13 earthquakes per day.
On March 11 alone, there were 200+ aftershocks. From the 9.0 magnitude earthquake on Friday March 11 05:46:23 UTC until March 31 midnight there were approximately 2,806 earthquakes ranging in magnitude 3.9 through 7.
The three largest quakes in Japan 2011 where magnitude 9.0, 7.9, and 7.7 all on March 11, 2011.
8 large earthquakes in 1975 according to USGS.
To see a list of more recent (or historic) earthquakes, visit the USGS Earthquake Hazards Program.
Japan has had about 40 earthquakes in total.
No major earthquakes were reported for Japan in 1970.
Between 2008/June/09 and 2008/June/31 (23 days)
I have counted 705 for the planet.
An estimate for ten years: (365 * 10 / 23) * 705 = 111900 earthquakes.
Japan has about 1,500 earthquakes
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.
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.
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.
On March 11, 2011 alone, there were 200+ aftershocks. From the 9.0 magnitude earthquake on Friday March 11 05:46:23 UTC until March 31 midnight there were approximately 2,806 earthquakes ranging in magnitude 3.9 through 7.9. As of August 10 there were 4,308 earthquakes in or near Japan for year 2011 according to the USGS earthquake data (not including small quakes under M 3.0) with March the most active month of the year. That's on average over earthquakes 19 per day.
On average Japan has ~20 earthquakes per day (note many of these are on the ocean floor with little or no effect on land). On March 11, 2011 alone, there were 200+ aftershocks that day so the number can vary greater on a given day due to seismic activity.
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.
One 8.9 Magnitude and about 100 6.0 Aftershocks
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.
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.
3-4
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.
There are many earthquakes and volcanic eruptions in Japan. ----
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.