J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2018-01-06 00:54:16 Chiba-Northwestern     50 5.24  
2018-01-24 19:51:20 Off the east coast of Aomori     50 6.35 Lower  
2018-03-01 22:42:26 Near Iriomotejima     10 5.24  
2018-03-13 15:10:51 Near Iriomotejima     10 4.74  
2018-04-14 04:00:02 Off the southeast coast of Nemuro Peninsula     50 5.25 Lower  
2018-04-14 15:13:27 Aichi-West     10 4.24  
2018-05-17 12:12:34 Chiba-Northeastern     30 5.14  
2018-05-18 03:42:00 Off the coast of Kushiro     10 7.34  
2018-05-25 21:13:42 Chuetsu, Niigata     10 4.84  
2018-06-17 15:27:21 Gunma-South     10 4.65 Lower  
2018-06-18 07:58:33 Osaka-North     20 6.16 Lower  
2018-06-26 17:00:09 Hiroshima-North     10 4.74  
2018-07-07 20:23:49 Off the east coast of Chiba     50 5.74  
2018-08-19 09:29:19 Off the south coast of the Boso Peninsula     10 5.94  
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