J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2013-08-01 01:33:09 Off the east coast of Souya     290 4.3Unkn 
2013-08-01 20:13:23 Off the east coast of Chiba     20 3.51  
2013-08-02 12:08:00 42.9 North - 143.7 East     100 3.52  
2013-08-03 00:12:14 Off the coast of Miyagi     20 3.51  
2013-08-03 09:56:15 34.6 North - 137.5 East     30 5.03  
2013-08-03 15:12:13 Off the coast of Iwate     10 3.51  
2013-08-03 17:05:22 Off the coast of Miyagi     40 3.52  
2013-08-04 12:28:50 Off the coast of Miyagi     40 6.24  
2013-08-04 13:08:46 Off the coast of Miyagi     50 3.52  
2013-08-04 14:51:12 Northern Ibaraki     50 4.13  
2013-08-05 00:56:40 Southern Sea of Okhotsk     370 5.9Unkn 
2013-08-05 02:15:57 Near the coast of Miyakojima     10 4.13  
2013-08-05 23:31:24 Near the coast of Niijima / Kouzujima     10 3.63  
2013-08-06 00:35:06 Off the coast of Miyagi     50 3.52  
2013-08-06 02:20:02 Off the coast of Miyagi     50 3.72  
2013-08-07 16:51:31 Off the east coast of Aomori     60 4.13  
2013-08-09 02:43:10 Off the coast of Iwate     20 3.51  
2013-08-09 11:59:33 Off the coast of Sanriku     10 5.02  
2013-08-09 18:58:04 Off the coast of Fukushima     10 3.71  
2013-08-09 23:57:21 Off the coast of Sanriku     10 4.41  
2013-08-10 01:40:16 Off the coast of Sanriku     10 4.82  
2013-08-10 06:36:47 Off the coast of Miyagi     10 3.51  
2013-08-10 07:30:09 Hamado-ri, Fukushima     10 3.63  
2013-08-10 07:56:01 Off the coast of Fukushima     40 4.93  
2013-08-10 08:05:44 Off the coast of Fukushima     60 3.52  
2013-08-11 15:04:54 Off the east coast of Kanto     10 4.0Unkn 
2013-08-12 05:39:30 Off the coast of Sanriku     10 4.92  
2013-08-12 09:32:01 Off the southeast coast of Nemuro Peninsula     40 4.33  
2013-08-12 09:51:11 Off the coast of Uraga     60 4.53  
2013-08-12 14:00:22 Off the coast of Kushiro     50 3.51  
2013-08-12 15:17:00 Off the coast of Iwate     50 3.52  
2013-08-12 20:35:26 Off the coast of Miyagi     10 3.51  
2013-08-12 21:59:31 Off the coast of Fukushima     10 4.73  
2013-08-13 01:25:38 Off the southeast coast of Mie     380 4.1Unkn 
2013-08-13 09:09:43 43.6 North - 143.6 East     190 4.7Unkn 
2013-08-13 10:01:37 Off the coast of Miyagi     10 4.12  
2013-08-13 11:18:44 42.9 North - 143.2 East     140 3.62  
2013-08-13 19:17:19 Off the coast of Fukushima     10 3.51  
2013-08-14 00:10:21 Off the east coast of Kanto     10 3.7Unkn 
2013-08-14 09:45:29 Off the coast of Ibaraki     10 4.64  
2013-08-14 14:31:26 Northern Ibaraki     10 4.34  
2013-08-14 20:56:38 Near the coast of Miyakejima     10 4.43  
2013-08-15 07:31:27 Near the coast of Miyakojima     30 3.72  
2013-08-15 07:53:52 Off the coast of Ibaraki     10 4.43  
2013-08-16 04:03:08 Off the coast of Ibaraki     20 3.52  
2013-08-16 05:38:34 Near the coast of Amami Oshima     10 3.71  
2013-08-17 01:28:04 Off the coast of Iwate     50 3.81  
2013-08-17 01:41:32 Off the coast of Uraga     70 3.62  
2013-08-17 13:15:59 Near the coast of Niijima / Kouzujima     10 3.63  
2013-08-17 18:12:50 26.7 North - 130.6 East     10 3.61  
2013-08-17 19:20:52 Off the coast of Ibaraki     10 4.02  
2013-08-18 08:00:46 Off the coast of Hachijojima     10 4.83  
2013-08-18 14:35:15 Off the coast of Sanriku     10 4.91  
2013-08-19 11:22:40 Northern Ibaraki     10 4.44  
2013-08-20 02:45:54 Hyuganada     50 3.82  
2013-08-20 14:02:46 Off the coast of Iwate     10 3.61  
2013-08-21 02:41:16 Off the coast of Fukushima     10 5.12  
2013-08-22 00:28:00 Off the coast of Fukushima     20 4.02  
2013-08-22 00:35:39 Off the coast of Fukushima     10 3.51  
2013-08-22 01:14:20 Northern Ibaraki     50 4.23  
2013-08-22 01:57:35 Hyuganada     30 3.42  
2013-08-22 02:20:01 Off the coast of Ibaraki     10 3.82  
2013-08-22 15:53:05 42.3 North - 143.0 East     60 4.93  
2013-08-22 17:02:47 Off the coast of Iwate     50 3.62  
2013-08-23 01:55:13 Off the coast of Fukushima     10 3.61  
2013-08-23 04:29:53 Off the coast of Fukushima     10 3.71  
2013-08-23 12:34:17 Off the coast of Miyagi     10 3.61  
2013-08-23 15:03:41 Off the coast of Iwate     10 3.61  
2013-08-23 23:21:54 Northern Ibaraki     10 3.83  
2013-08-25 03:43:40 Off the coast of Miyagi     10 3.51  
2013-08-25 05:30:53 Off the coast of Kushiro     70 3.82  
2013-08-25 10:01:02 Off the northwest coast of Ishigaki Island     10 3.71  
2013-08-25 10:15:24 Off the northeast coast of Amami Oshima     40 3.61  
2013-08-25 11:00:48 Off the west coast of Satsuma Peninsula     10 3.51  
2013-08-25 18:18:31 Off the coast of Miyagi     50 3.82  
2013-08-26 14:24:27 Off the coast of Miyagi     50 4.43  
2013-08-26 23:51:40 42.4 North - 143.0 East     50 3.52  
2013-08-27 02:50:49 Off the coast of Ibaraki     50 3.52  
2013-08-28 02:09:19 Off the coast of Fukushima     10 4.42  
2013-08-28 06:40:52 Off the coast of Ibaraki     20 3.72  
2013-08-28 16:57:18 Off the southwest of Hokkaido     160 3.6Unkn 
2013-08-28 17:55:48 Off the coast of Fukushima     60 3.52  
2013-08-28 21:50:06 Off the coast of Fukushima     10 4.2Unkn 
2013-08-29 00:20:59 Off the coast of Fukushima     60 3.52  
2013-08-29 11:47:29 Off the coast of Sanriku     10 3.91  
2013-08-29 12:32:46 Off the coast of Miyagi     10 3.51  
2013-08-29 21:45:51 Nakado-ri, Fukushima     10 4.03  
2013-08-29 22:43:25 East Kanagawa     30 3.92  
2013-08-30 17:32:24 Off the south coast of Wakayama     10 4.54  
2013-08-30 19:32:49 Off the coast of Miyagi     10 3.71  
2013-08-31 05:32:11 Southern coast of Akita     170 3.8Unkn 
2013-08-31 10:34:52 Off the coast of Miyagi     60 3.52  
2013-08-31 17:59:40 Off the coast of Ibaraki     90 3.52  
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