J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2020-07-01 07:31:57 Off the east coast of Aomori     10 3.62  
2020-07-01 07:33:49 Off the east coast of Aomori     10 3.51  
2020-07-01 18:25:03 Off the east coast of Chiba     50 4.63  
2020-07-02 04:22:33 Off the northwest coast of Ishigaki Island     40 4.52  
2020-07-03 14:12:54 Off the coast of Fukushima     40 4.63  
2020-07-03 22:33:00 Off the southeast coast of Chiba     70 3.51  
2020-07-07 03:18:57 Near the coast of Torishima     480 5Unkn 
2020-07-07 13:49:34 Off the coast of Ibaraki     50 3.52  
2020-07-08 05:18:58 Off the coast of Sanriku     10 3.61  
2020-07-09 02:18:50 Off the coast of Fukushima     10 3.71  
2020-07-09 02:32:00 Off the coast of Fukushima     10 3.51  
2020-07-09 11:54:55 Off the coast of Sanriku     10 3.91  
2020-07-13 04:22:09 Near the coast of Amami Oshima     10 3.81  
2020-07-13 10:42:49 Off the east coast of Aomori     20 4.42  
2020-07-14 22:21:08 Off the east coast of Hokkaido     110 4.92  
2020-07-15 05:48:02 Off the coast of Ibaraki     100 3.92  
2020-07-16 18:07:46 Off the coast of Miyagi     60 3.52  
2020-07-17 01:33:22 Off the coast of Fukushima     30 3.82  
2020-07-17 05:26:20 Off the coast of Ibaraki     80 3.72  
2020-07-17 13:49:35 Off the coast of Fukushima     40 4.42  
2020-07-17 14:15:48 Central Sea of Japan     380 3.5Unkn 
2020-07-19 09:28:10 Hyuganada     30 3.62  
2020-07-19 21:01:29 Off the coast of Ibaraki     40 3.72  
2020-07-20 00:16:23 Off the coast of Miyagi     10 3.82  
2020-07-20 03:02:46 Off the coast of Fukushima     40 4.52  
2020-07-20 04:14:46 Near the coast of Torishima     450 4.3Unkn 
2020-07-20 14:25:06 Near the coast of Miyakojima     10 5.13  
2020-07-21 17:54:22 Off the southeast coast of Tanegashima     20 4.52  
2020-07-23 22:19:06 Off the coast of Fukushima     20 4.52  
2020-07-25 09:17:01 Off the coast of Miyagi     20 3.52  
2020-07-26 06:38:04 Central Sea of Japan     290 3.7Unkn 
2020-07-26 17:42:33 Off the west coast of Satsuma Peninsula     10 3.41  
2020-07-26 21:52:32 Near the coast of Yonagunijima     10 5.13  
2020-07-26 23:11:19 Near the coast of Okinawa     10 4.11  
2020-07-27 01:32:20 Off the coast of Iwate     50 3.52  
2020-07-27 16:56:01 Off the coast of Miyagi     40 3.92  
2020-07-28 19:46:30 Off the coast of Miyagi     50 3.52  
2020-07-29 05:33:23 Off the coast of Ibaraki     20 4.44  
2020-07-30 02:35:11 Off the coast of Akita     20 4.33  
2020-07-30 09:36:51 Off the south coast of the Boso Peninsula     50 3.62  
2020-07-31 11:11:45 Near the coast of Okinawa     10 42  
2020-07-31 22:57:36 Northern Sea of Japan     290 3.9Unkn 
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
2020 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