J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2013-12-18 19:14:07 Off the coast of Miyagi     20 4.42  
2013-12-18 22:50:17 South Central Kushiro     140 3.51  
2013-12-18 22:54:14 Off the coast of Sanriku     10 3.51  
2013-12-19 13:25:50 Off the coast of Sanriku     10 4.21  
2013-12-19 22:55:56 Near the coast of Okinawa Island     50 4.33  
2013-12-20 15:43:08 Near Iriomotejima     30 4.42  
2013-12-21 01:10:54 Southern Ibaraki     10 3.73  
2013-12-21 10:34:18 Northeast Chiba     10 4.84  
2013-12-21 16:19:05 Central East Iburi Subprefecture     10 3.53  
2013-12-21 22:54:07 Off the coast of Fukushima     10 3.61  
2013-12-25 07:41:57 Off the coast of Fukushima     50 3.82  
2013-12-26 03:43:20 Off the east coast of Aomori     60 3.92  
2013-12-26 06:47:37 Off the coast of Kushiro     60 3.72  
2013-12-26 18:14:30 Off the coast of Fukushima     10 3.81  
2013-12-27 19:31:18 Off the coast of Iwate     30 4.12  
2013-12-28 21:27:04 Off the coast of Fukushima     50 3.61  
2013-12-29 10:22:15 Off the coast of Miyagi     50 4.12  
2013-12-29 23:29:12 Off the southeast coast of Nemuro Peninsula     100 3.62  
2013-12-29 23:51:47 Off the coast of Fukushima     10 3.51  
2013-12-30 18:44:14 Off the coast of Ibaraki     60 3.61  
2013-12-30 21:55:55 Izu Islands     10 5.24  
2013-12-30 22:09:57 Izu Islands     10 4.83  
2013-12-31 10:02:58 Northern Ibaraki     10 5.85 Upper  
2013-12-31 10:09:49 Northern Ibaraki     10 3.83  
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