J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2017-02-01 03:44:14 Off the coast of Miyagi     30 4.53  
2017-02-02 03:12:22 Near the coast of Amami Oshima     30 4.73  
2017-02-02 20:06:38 Near the coast of Okinawa Island     40 4.33  
2017-02-03 20:59:22 Off the coast of Ibaraki     40 4.22  
2017-02-03 23:16:35 Off the coast of Fukushima     10 4.62  
2017-02-04 21:36:21 Off the coast of Fukushima     30 3.61  
2017-02-05 09:17:58 Off the coast of Iwate     20 3.52  
2017-02-05 22:22:41 Off the east coast of Hachijojima     150 3.7Unkn 
2017-02-06 11:28:31 Off the coast of Miyagi     50 3.92  
2017-02-06 15:25:32 Off the coast of Ibaraki     20 3.92  
2017-02-07 06:17:21 Off the coast of Fukushima     30 4.22  
2017-02-07 16:22:34 Off the southeast coast of Kyushu     10 4.12  
2017-02-07 20:04:46 Ibaraki-North     10 4.33  
2017-02-07 22:04:23 Off the east coast of Aomori     60 3.42  
2017-02-08 03:55:20 Off the coast of Fukushima     10 3.51  
2017-02-08 04:02:32 Near the coast of Okinawa Island     50 3.52  
2017-02-08 21:16:04     10 4.13  
2017-02-08 21:29:56     10 3.62  
2017-02-08 22:45:04     10 3.62  
2017-02-09 11:12:15 Near the coast of Amami Oshima     30 4.53  
2017-02-09 14:08:13 Off the coast of Ibaraki     30 3.52  
2017-02-10 18:11:41     420 3.5Unkn 
2017-02-11 01:10:26 Off the coast of Miyagi     10 4.02  
2017-02-11 06:06:31 Off the coast of Fukushima     40 5.03  
2017-02-11 06:40:02 Off the coast of Fukushima     10 4.83  
2017-02-11 10:03:10 Miyazaki-Southern Mountains     110 3.62  
2017-02-11 21:04:34 Off the coast of Fukushima     10 3.52  
2017-02-12 12:43:37 Off the east coast of Kanto     10 4.21  
2017-02-14 04:19:54 Off the coast of Uraga     70 3.62  
2017-02-14 15:51:50 Off the coast of Fukushima     10 3.62  
2017-02-15 16:59:35 Off the coast of Akita     10 3.61  
2017-02-16 11:19:10 Off the coast of Fukushima     10 3.51  
2017-02-16 14:33:20     10 4.03  
2017-02-16 17:02:43 Off the coast of Ibaraki     10 3.51  
2017-02-17 10:18:59 Near the coast of Miyakojima     50 4.73  
2017-02-19 15:03:02 Off the coast of Fukushima     70 4.02  
2017-02-19 18:20:19 Chiba-Northeastern     40 5.34  
2017-02-21 07:52:56 Off the south coast of Tokaido     350 4.2Unkn 
2017-02-22 18:54:09 Ibaraki-North     10 3.83  
2017-02-23 13:02:18     50 4.12  
2017-02-24 11:51:25 Off the coast of Sanriku     10 3.91  
2017-02-24 21:36:52 Off the coast of Fukushima     30 4.01  
2017-02-25 00:48:59 Off the coast of Miyagi     40 3.62  
2017-02-25 11:51:04 Off the northeast coast of Amami Oshima     10 4.72  
2017-02-25 13:54:07 Off the coast of Miyagi     40 4.63  
2017-02-26 05:12:40 Ibaraki-South     50 4.13  
2017-02-26 23:55:44 Off the coast of Fukushima     70 4.12  
2017-02-27 00:04:34 Off the coast of Fukushima     50 5.33  
2017-02-27 03:10:21 Off the coast of Fukushima     50 3.52  
2017-02-27 06:39:10 Hidaka-East     50 3.52  
2017-02-27 10:55:10 Off the southeast coast of Mie     400 3.8Unkn 
2017-02-27 11:19:32 Off the coast of Sanriku     10 5.32  
2017-02-27 12:41:48 Off the coast of Sanriku     10 4.21  
2017-02-27 15:23:01 Near Kunashir     70 4.33  
2017-02-27 18:11:28 Tokachi-South     40 4.53  
2017-02-28 00:43:38     10 3.43  
2017-02-28 01:19:43 Near Taiwan     60 5.12  
2017-02-28 02:53:53 Off the coast of Sanriku     10 5.02  
2017-02-28 08:51:06 Miyazaki-Southern Plains     10 3.32  
2017-02-28 10:51:36 Off the coast of Sanriku     10 5.02  
2017-02-28 17:10:01 Off the coast of Fukushima     20 4.92  
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