Earthquakes Japan 2013

This is an overview of all the earthquakes in Japan in 2013, sorted per magnitude and shindo (震度, shaking intensity). This data was generated by using the Japan Meteorological Agency database.

The most earthquakes in a single category were shindo 1 and magnitude 3-3.9, still roughly double the amount of 2010.
Shindo 1 earthquakes ranged from magnitude 1 to 7.9.
Shindo 2 earthquakes ranged from magnitude 2 to 6.9.
Shindo 3 earthquakes ranged from magnitude 2 to 8.9 (Sea of Okhotsk, North of Hokkaido).
Shindo 4 earthquakes ranged from magnitude 3 to 7.9.
Shindo 5- earthquakes ranged from magnitude 4 to 5.9.
Shindo 5+ earthquakes ranged from magnitude 5 to 6.9.
The Shindo 6- earthquake fell into magnitude 6 to 6.9.

Below the frequency distribution of earthquakes during the year is shown:

Comparing the JMA statistics with the data from their database, all earthquakes were found in the database.

JMA:

Intensity	震度７	震度６強	震度６弱	震度５強	震度５弱	震度４	震度３	震度２	震度１	Total
2013	0	0	1	6	5	52	187	613	1523	2387

Database:

Intensity	震度７	震度６強	震度６弱	震度５強	震度５弱	震度４	震度３	震度２	震度１	Total
2013	0	0	1	6	5	52	187	613	1523	2387