J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2017-04-01 18:15:36 Off the east coast of Hachijojima     50 4.01  
2017-04-01 20:28:45 Ibaraki-North     10 4.13  
2017-04-01 21:52:00 Iwate Southern Inland     10 3.62  
2017-04-02 05:44:58 Off the coast of Sanriku     10 4.82  
2017-04-02 12:33:41 Off the coast of Miyagi     10 5.02  
2017-04-03 23:50:12 Off the coast of Miyagi     20 3.52  
2017-04-08 10:47:17 Off the coast of Iwate     20 3.62  
2017-04-08 23:18:25 Off the east coast of Hachijojima     40 4.22  
2017-04-09 07:21:14 Off the coast of Fukushima     40 5.03  
2017-04-10 03:11:38 Off the coast of Miyagi     60 4.33  
2017-04-10 06:06:29 Off the coast of Miyagi     60 3.62  
2017-04-10 21:38:07 Off the east coast of Chiba     10 3.63  
2017-04-12 03:11:38 Ibaraki-South     50 4.53  
2017-04-12 22:56:46 Near the coast of Amami Oshima     20 4.93  
2017-04-14 23:02:16 Chuetsu, Niigata     10 4.43  
2017-04-15 00:47:06 Chiba-Northwestern     60 4.33  
2017-04-15 07:30:53 Fukushima-Hamadori     110 3.41  
2017-04-16 04:25:12 Off the east coast of Aomori     10 4.02  
2017-04-18 02:40:03 Off the southeast coast of Chiba     90 4.42  
2017-04-18 14:50:22 Off the coast of Fukushima     40 4.02  
2017-04-19 02:37:40 Near the coast of Miyakojima     50 3.62  
2017-04-19 12:47:38     20 4.23  
2017-04-20 02:14:26 Ibaraki-North     10 4.34  
2017-04-20 02:16:55 Off the coast of Fukushima     30 5.13  
2017-04-20 04:47:07 Ibaraki-North     10 4.13  
2017-04-21 22:12:29 Near the coast of Amami Oshima     10 3.91  
2017-04-23 19:10:03 Off the coast of Fukushima     10 5.13  
2017-04-24 03:44:05 Off the coast of Tokachi     30 4.32  
2017-04-24 04:20:26 Off the coast of Fukushima     10 3.61  
2017-04-24 13:48:43 Off the south coast of Wakayama     450 3.5Unkn 
2017-04-24 16:15:14 Tomakomai Bay     120 3.62  
2017-04-24 22:59:11 Shizuoka-West     30 4.13  
2017-04-28 01:40:03 Off the east coast of Aomori     50 3.32  
2017-04-28 22:33:27 Off the southeast coast of Mie     350 3.7Unkn 
2017-04-29 06:01:54 Near the coast of Chichijima     10 4.12  
2017-04-29 14:56:05 Chiba-South     20 3.93  
2017-04-29 19:48:30 Off the coast of Miyagi     10 3.91  
2017-04-29 21:33:38 Off the southeast coast of Kyushu     60 5.73  
2017-04-29 22:41:40 Off the southeast coast of Kyushu     20 3.61  
2017-04-30 00:45:13 Off the southeast coast of Tanegashima     10 3.51  
2017-04-30 04:35:49 Off the coast of Uraga     70 3.31  
2017-04-30 04:41:56 Off the east coast of Osumi Peninsula     30 3.71  
2017-04-30 05:24:01 Off the southeast coast of Tanegashima     10 5.03  
2017-04-30 19:31:24 Chiba-Northwestern     60 4.22  
2017-04-30 23:43:28 Tokachi-South     50 5.74  
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
2018 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