J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2013-12-18 19:14:08 Off the coast of Miyagi     20 4.73  
2013-12-18 22:50:17 43.2 North - 144.1 East     140 3.51  
2013-12-18 22:54:16 Off the coast of Sanriku     10 3.61  
2013-12-19 13:25:51 Off the coast of Sanriku     10 4.92  
2013-12-19 22:55:56 Near the coast of Okinawa Island     40 4.23  
2013-12-20 15:43:10 Near Iriomotejima     30 4.23  
2013-12-21 01:10:46 Southern Ibaraki     60 5.64  
2013-12-21 10:34:15 Northeast Chiba     30 5.44  
2013-12-21 16:19:05 42.6 North - 141.3 East     10 3.32  
2013-12-21 22:54:09 Off the coast of Miyagi     10 4.32  
2013-12-25 07:41:57 Off the coast of Ibaraki     40 3.82  
2013-12-26 03:43:22 Off the east coast of Aomori     50 3.72  
2013-12-26 06:47:38 Off the coast of Kushiro     60 3.62  
2013-12-26 18:14:32 Off the coast of Fukushima     10 3.51  
2013-12-27 19:31:17 Off the coast of Iwate     20 4.93  
2013-12-28 21:27:05 Off the coast of Fukushima     50 4.62  
2013-12-29 10:22:16 Off the coast of Miyagi     40 4.53  
2013-12-29 23:29:13 Off the southeast coast of Nemuro Peninsula     100 3.41  
2013-12-29 23:51:47 Off the coast of Fukushima     10 3.71  
2013-12-30 18:44:15 Off the coast of Ibaraki     20 3.72  
2013-12-30 21:55:55 34.6 North - 139.6 East     10 4.73  
2013-12-30 22:09:57 34.6 North - 139.7 East     10 4.33  
2013-12-31 10:02:59 Northern Ibaraki     10 5.35 Lower  
2013-12-31 10:09:50 Northern Ibaraki     10 3.63  
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