J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2012-09-01 00:31:20 Off the coast of Fukushima     40km 4.93  
2012-09-02 13:33:45 Off the coast of Ibaraki     60km 4.43  
2012-09-09 01:48:32 Near the coast of Amami Oshima     30km 4.13  
2012-09-09 03:38:30 West Shizuoka     30km 4.73  
2012-09-14 02:22:10 Northeast Chiba     10km 5.54  
2012-09-14 13:42:34 Near the coast of Amami Oshima     10km 4.63  
2012-09-16 01:09:40 Off the coast of Ibaraki     10km 4.64  
2012-09-18 04:09:22 Off the coast of Iwate     10km 5.13  
2012-09-26 09:08:20 Off the coast of Ibaraki     10km 4.03  
2012-09-30 10:39:26 Off the coast of Miyagi     20km 4.83  
2012-09-30 16:06:55 Off the coast of Ibaraki     10km 3.83  
Archive Earthquake Data
  JMA (final quake data) EEW (preliminary reports)
2011 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2012 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2013 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2014 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2015 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2016 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2017 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7