J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2012-03-01 07:32:36 Off the coast of Ibaraki     10km 5.54  
2012-03-01 11:12:22 Off the east coast of Chiba     10km 5.23  
2012-03-01 23:49:53 Off the coast of Fukushima     50km 4.73  
2012-03-02 19:11:35 Off the east coast of Chiba     10km 5.53  
2012-03-03 22:26:19 Off the coast of Miyagi     50km 4.73  
2012-03-05 15:24:24 Off the coast of Iwate     20km 5.13  
2012-03-07 15:18:11 Near the coast of Okinawa Island     30km 5.43  
2012-03-08 03:50:57 Southern Ibaraki     50km 4.73  
2012-03-08 12:23:27 Off the coast of Miyagi     50km 5.13  
2012-03-10 02:25:28 Off the coast of Ibaraki     10km 5.45 Lower  
2012-03-10 03:15:39 Off the coast of Ibaraki     10km 4.13  
2012-03-11 09:00:18 Off the coast of Ibaraki     10km 4.33  
2012-03-11 17:33:09 Southern Tokachi Subprefecture     50km 4.93  
2012-03-12 07:58:08 Kumamoto, Kumamoto     10km 3.53  
2012-03-12 20:07:42 Northwest Chiba     10km 3.43  
2012-03-14 18:08:36 Off the coast of Tokachi     10km 7.03  
2012-03-14 21:05:04 Off the east coast of Chiba     10km 6.26 Lower  
2012-03-14 22:29:50 Off the coast of Ibaraki     10km 4.54  
2012-03-15 07:11:50 Off the east coast of Chiba     10km 3.33  
2012-03-16 04:20:20 Southern Saitama     60km 5.24  
2012-03-16 10:38:56 Off the east coast of Chiba     10km 3.43  
2012-03-17 08:18:11 Off the east coast of Chiba     10km 4.74  
2012-03-17 08:38:51 Off the east coast of Chiba     10km 4.53  
2012-03-17 14:12:07 Off the coast of Ibaraki     10km 4.13  
2012-03-17 20:24:39 Northern Ibaraki     10km 3.73  
2012-03-17 22:47:38 Off the coast of Miyagi     70km 4.83  
2012-03-18 06:42:44 Off the east coast of Chiba     10km 4.33  
2012-03-18 09:36:28 Off the coast of Iwate     40km 5.43  
2012-03-19 11:56:01 Off the east coast of Aomori     60km 4.93  
2012-03-19 19:23:20 Off the southeast coast of Nemuro Peninsula     90km 4.93  
2012-03-21 01:53:34 Off the coast of Ibaraki     10km 4.13  
2012-03-23 22:55:44 Off the east coast of Chiba     10km 4.03  
2012-03-24 14:14:02 Off the east coast of Chiba     10km 4.53  
2012-03-25 06:54:45 Off the coast of Tokachi     10km 4.93  
2012-03-25 22:22:40 Off the coast of Fukushima     10km 5.63  
2012-03-26 07:43:56 Off the coast of Iwate     50km 4.43  
2012-03-27 19:21:58 Off the east coast of Chiba     10km 4.74  
2012-03-27 20:00:39 Off the coast of Iwate     10km 6.15 Lower  
2012-03-30 05:38:15 Off the coast of Miyagi     50km 5.13  
2012-03-30 13:38:32 Off the coast of Fukushima     50km 5.64  
2012-03-30 18:40:53 Off the coast of Iwate     20km 5.03  
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