J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2017-04-01 18:14:02 Off the east coast of Hachijojima     60 3.91  
2017-04-01 20:28:11 Northern Ibaraki     10 4.13  
2017-04-01 21:51:25 Southern inland of Iwate     10 3.83  
2017-04-02 03:23:09 Off the coast of Miyagi     40 3.52  
2017-04-02 05:43:31 Off the coast of Sanriku     10 3.91  
2017-04-02 12:32:10 Off the coast of Sanriku     10 3.71  
2017-04-03 23:49:03 Off the coast of Miyagi     20 3.62  
2017-04-08 10:46:11 Off the coast of Iwate     20 3.62  
2017-04-08 16:50:21 Southern Nagano     10 4.03  
2017-04-08 23:17:40 Off the coast of Hachijojima     10 4.02  
2017-04-09 07:20:12 Off the coast of Fukushima     50 4.52  
2017-04-10 03:10:41 Off the coast of Miyagi     50 4.02  
2017-04-10 06:05:27 Off the coast of Miyagi     60 3.72  
2017-04-10 21:37:31 Off the east coast of Chiba     10 3.72  
2017-04-12 03:10:48 Southern Ibaraki     60 4.23  
2017-04-12 22:55:38 Off the northeast coast of Amami Oshima     70 4.93  
2017-04-13 02:15:28 Off the south coast of Wakayama     10 4.73  
2017-04-14 23:01:20 Chuetsu, Niigata     20 3.62  
2017-04-15 00:46:12 Northwest Chiba     70 4.53  
2017-04-15 07:29:49 Hamado-ri, Fukushima     110 3.41  
2017-04-16 04:23:59 Off the east coast of Aomori     10 4.02  
2017-04-17 00:04:52 Off the east coast of Aomori     10 3.61  
2017-04-17 19:20:01 Off the coast of Fukushima     90 3.52  
2017-04-18 02:39:01 Off the southeast coast of Chiba     90 4.52  
2017-04-18 14:48:59 Off the coast of Fukushima     40 3.92  
2017-04-19 02:36:41 Near the coast of Miyakojima     40 3.52  
2017-04-19 12:46:32 橘湾     20 3.73  
2017-04-20 02:13:41 Northern Ibaraki     10 4.44  
2017-04-20 02:15:30 Off the coast of Fukushima     30 4.92  
2017-04-20 04:46:07 Northern Ibaraki     10 3.93  
2017-04-21 00:25:39 Off the coast of Fukushima     40 3.51  
2017-04-21 22:10:30 Near the coast of Amami Oshima     10 3.91  
2017-04-23 15:37:02 Near Southern Sakhalin     10 5.22  
2017-04-23 19:09:13 Off the coast of Fukushima     40 5.03  
2017-04-24 03:43:16 Off the coast of Uraga     40 4.22  
2017-04-24 04:19:09 Off the coast of Fukushima     40 3.61  
2017-04-24 13:45:52 Off the south coast of Wakayama     450 3.5Unkn 
2017-04-24 16:14:09 Tomakomai Bay     120 3.62  
2017-04-24 22:58:22 West Shizuoka     30 3.62  
2017-04-26 12:27:15 Off the coast of Miyagi     40 3.52  
2017-04-28 01:39:02 Off the east coast of Aomori     50 3.52  
2017-04-28 22:30:39 Off the southeast coast of Mie     350 3.7Unkn 
2017-04-29 06:01:12 Near the coast of Chichijima     10 4.12  
2017-04-29 14:55:18 Off the southeast coast of Chiba     30 5.23  
2017-04-29 19:47:03 Off the coast of Miyagi     10 3.81  
2017-04-29 21:32:32 Off the east coast of Osumi Peninsula     10 5.93  
2017-04-29 22:40:35 Off the east coast of Osumi Peninsula     30 3.51  
2017-04-30 00:43:59 Off the southeast coast of Tanegashima     10 3.51  
2017-04-30 04:34:51 Off the coast of Uraga     70 3.42  
2017-04-30 04:40:48 Off the east coast of Osumi Peninsula     20 3.51  
2017-04-30 05:23:00 Off the east coast of Osumi Peninsula     20 5.03  
2017-04-30 07:41:15 Near the coast of Ishigakijima     10 4.23  
2017-04-30 19:30:33 Northwest Chiba     60 4.33  
2017-04-30 23:42:35 Southern Tokachi     60 5.54  
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
2019 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