J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2018-01-01 04:42:37 Off the coast of Ibaraki     10 4.83  
2018-01-02 15:35:16 Off the coast of Miyagi     20 3.62  
2018-01-02 19:48:40 東京湾     50 3.72  
2018-01-03 06:24:10 Off the coast of Fukushima     10 3.51  
2018-01-04 10:36:21 Off the coast of Uraga     40 3.51  
2018-01-04 15:20:07 Chiba-Northwestern     70 4.33  
2018-01-04 22:15:26 Off the southwest of Hokkaido     210 3.8Unkn 
2018-01-05 11:02:23 Toyama-West     10 4.33  
2018-01-05 23:27:47 Off the coast of Ibaraki     10 3.51  
2018-01-06 00:25:51 Off the coast of Fukushima     10 3.61  
2018-01-06 00:54:16 Chiba-Northwestern     50 5.24  
2018-01-06 04:37:58 伊豆半島東方沖     20 4.13  
2018-01-06 05:47:59 Izu Islands     10 4.33  
2018-01-06 22:45:21 Off the east coast of Aomori     10 3.92  
2018-01-07 11:23:11 Off the coast of Miyagi     50 3.52  
2018-01-07 18:19:57 Off the coast of Ibaraki     50 4.63  
2018-01-08 08:52:53 Off the southeast coast of Mie     360 3.7Unkn 
2018-01-09 05:52:08 Iyonada     60 3.72  
2018-01-09 13:43:19 Off the coast of Iwate     40 4.42  
2018-01-10 07:20:49 Off the east coast of Chiba     20 4.42  
2018-01-10 07:30:22 Off the east coast of Chiba     10 5.33  
2018-01-10 15:23:17 Off the southeast coast of Kyushu     10 3.5Unkn 
2018-01-10 20:01:01 Off the southeast coast of Kyushu     10 3.91  
2018-01-10 20:03:26 Hidaka-Central     140 4.02  
2018-01-12 01:55:19 Miyagi-North     70 3.52  
2018-01-12 18:51:03 Off the southeast coast of Kyushu     10 4.31  
2018-01-13 08:56:18 Off the coast of Miyagi     70 3.82  
2018-01-13 13:13:08 Off the southeast coast of Kyushu     10 3.71  
2018-01-14 11:45:20 Near the coast of Amami Oshima     10 4.31  
2018-01-14 18:07:34 Off the coast of Uraga     10 4.12  
2018-01-16 05:41:30 Off the southeast coast of Kyushu     10 3.7Unkn 
2018-01-16 15:39:59 Off the coast of Fukushima     10 3.52  
2018-01-16 17:58:49 Off the coast of Fukushima     60 3.52  
2018-01-16 18:49:47 Off the southeast coast of Nemuro Peninsula     60 4.42  
2018-01-16 20:05:28 Off the east coast of Hachijojima     70 4.01  
2018-01-17 00:07:07 Near the coast of Okinawa Island     10 3.93  
2018-01-19 08:22:40 Off the east coast of Chiba     10 3.62  
2018-01-19 15:45:34 Nagano-South     10 3.43  
2018-01-19 19:24:32 Off the southeast coast of Kyushu     10 3.51  
2018-01-19 20:59:59 Near Kunashir     80 4.42  
2018-01-20 11:05:02 Off the south coast of Wakayama     10 3.71  
2018-01-21 08:15:55 Fukushima-Aizu     10 4.23  
2018-01-21 15:15:30 Shizuoka-Central     10 3.53  
2018-01-24 02:32:04 Off the coast of Ibaraki     40 4.23  
2018-01-24 19:51:20 Off the east coast of Aomori     50 6.35 Lower  
2018-01-24 22:55:36 Off the coast of Fukushima     60 3.82  
2018-01-27 05:24:42 Off the east coast of Hachijojima     120 3.61  
2018-01-27 15:00:19 Off the south coast of Tokaido     10 3.51  
2018-01-29 05:21:22 Off the coast of Sanriku     10 4.52  
2018-01-29 12:59:54 Off the east coast of Aomori     10 4.22  
2018-01-29 19:21:33 Off the coast of Uraga     70 3.62  
2018-01-30 08:42:13 Off the east coast of Aomori     10 3.92  
2018-01-30 09:25:57 Off the coast of Miyagi     50 4.02  
2018-01-30 13:09:59 Hidaka-Central     30 3.52  
2018-01-31 05:11:51 Off the coast of Uraga     10 4.73  
2018-01-31 10:15:23 Off the coast of Ibaraki     50 3.92  
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
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