J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2018-08-01 09:19:07 Off the coast of Fukushima     10 3.51  
2018-08-01 13:02:56 Fukushima-Hamadori     100 3.52  
2018-08-03 23:40:09 Off the south coast of Wakayama     10 3.71  
2018-08-05 16:42:36 Tochigi-South     80 3.52  
2018-08-05 17:45:10 Off the east coast of Aomori     70 4.43  
2018-08-06 07:51:44 Off the coast of Sanriku     10 5.12  
2018-08-06 11:11:01 Central Sea of Japan     390 3.7Unkn 
2018-08-06 19:57:02 Off the east coast of Chiba     20 4.53  
2018-08-07 05:11:49 Chiba-Northwestern     60 4.23  
2018-08-07 07:52:16 Off the coast of Fukushima     30 3.61  
2018-08-08 00:14:51 Off the coast of Sanriku     10 6.53  
2018-08-08 01:55:16 Near the coast of Okinawa Island     10 3.51  
2018-08-08 06:04:56 Off the east coast of Chiba     10 4.13  
2018-08-08 18:08:17 Off the coast of Fukushima     10 5.03  
2018-08-10 08:28:10 Off the coast of Fukushima     40 3.51  
2018-08-10 21:19:07     20 4.33  
2018-08-11 04:49:16 Near the coast of Yonagunijima     20 3.71  
2018-08-11 06:12:12 Off the coast of Fukushima     10 4.83  
2018-08-11 08:04:47 Off the coast of Miyagi     50 4.12  
2018-08-11 14:19:55 Off the east coast of Chiba     30 4.32  
2018-08-13 00:34:29 Off the coast of Uraga     60 3.52  
2018-08-13 08:53:40 Kamikawa-North     260 3.8Unkn 
2018-08-14 11:43:11     10 3.82  
2018-08-14 12:36:40 Off the east coast of Chiba     50 4.63  
2018-08-14 15:10:02 Off the coast of Miyagi     30 3.42  
2018-08-14 20:51:55 Shizuoka-West     40 3.52  
2018-08-19 01:05:15 Off the coast of Kushiro     100 3.31  
2018-08-19 09:30:40 Off the south coast of the Boso Peninsula     10 5.94  
2018-08-19 11:02:05     230 3.9Unkn 
2018-08-20 03:11:04 Miyagi-North     110 4.63  
2018-08-20 19:46:49 Near Iriomotejima     20 4.23  
2018-08-21 02:47:55 Ibaraki-South     50 4.13  
2018-08-21 11:41:16 Off the coast of Fukushima     40 3.82  
2018-08-21 12:34:57 Off the southeast coast of Nemuro Peninsula     50 3.52  
2018-08-23 00:07:38 Off the east coast of Aomori     20 4.22  
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