Table 1 Characteristics of the earthquakes used in the analysis
Number | Origin time (local time) | Longitude | Latitude | Depth (km) | Mw |
|---|---|---|---|---|---|
1 | 4 April 2008 19:01 | 139.828 | 36.120 | 56.0 | 4.8 |
2 | 2 April 2011 16:55 | 139.962 | 36.207 | 56.0 | 4.8 |
3 | 26 April 2011 21:12 | 139.976 | 36.086 | 59.0 | 4.9 |
4 | 11 February 2012 10:26 | 139.789 | 36.088 | 59.0 | 4.8 |
5 | 18 May 2012 17:18 | 139.841 | 36.136 | 59.0 | 4.8 |
6 | 16 July 2012 04:31 | 139.817 | 36.152 | 62.0 | 4.8 |
7 | 1 February 2013 01:04 | 139.893 | 36.056 | 50.0 | 4.3 |