J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2020-05-01 15:27:55 Central Sea of Japan     10 3.7Unkn 
2020-05-02 03:51:26 Near the coast of Amami Oshima     20 3.42  
2020-05-02 11:26:13 Off the east coast of Chiba     10 3.73  
2020-05-03 09:35:04 Off the southeast coast of Mie     380 3.6Unkn 
2020-05-03 12:09:52 Off the southeast coast of Nemuro Peninsula     120 3.92  
2020-05-03 12:24:33 Near Taiwan     110 5.22  
2020-05-03 20:54:11 Off the west coast of Satsuma Peninsula     10 5.9Unkn 
2020-05-03 21:01:15 Off the west coast of Satsuma Peninsula     10 41  
2020-05-04 22:34:32 Off the coast of Ibaraki     40 4.53  
2020-05-04 23:59:40 Off the southeast coast of Nemuro Peninsula     50 3.62  
2020-05-05 02:01:54 Off the southeast coast of Nemuro Peninsula     10 3.51  
2020-05-06 10:16:11 Off the coast of Fukushima     40 42  
2020-05-08 01:48:15 Off the coast of Miyagi     30 3.72  
2020-05-08 12:34:32 Off the west coast of Satsuma Peninsula     10 41  
2020-05-11 02:23:49 Iyonada     60 3.52  
2020-05-11 08:58:33 Off the coast of Ibaraki     50 5.44  
2020-05-12 11:44:33 Off the coast of Kushiro     40 4.33  
2020-05-13 13:39:21 Hyuganada     40 3.82  
2020-05-13 14:56:33 Off the southwest coast of Hokkaido     180 4.4Unkn 
2020-05-13 21:29:02 Off the coast of Uraga     70 3.52  
2020-05-13 22:46:22 Off the coast of Kushiro     90 4.22  
2020-05-14 02:59:55 Near the coast of Okinawa     10 3.61  
2020-05-14 04:30:26 Off the coast of Iwate     10 4.23  
2020-05-15 06:40:14 Off the coast of Miyagi     40 4.63  
2020-05-16 01:48:31 Off the coast of Iwate     10 3.82  
2020-05-16 06:27:13 Off the coast of Ibaraki     50 4.43  
2020-05-16 23:42:27 Off the west coast of Hokkaido     240 3.7Unkn 
2020-05-17 04:00:05 Near the coast of Tokara Islands     10 4.5Unkn 
2020-05-17 20:38:26 Kii Channel     40 4.73  
2020-05-18 12:00:38 Off the coast of Miyagi     50 4.84  
2020-05-19 08:42:23 Off the west coast of Ishikawa     370 3.7Unkn 
2020-05-19 09:46:13 Off the coast of Iwate     80 3.62  
2020-05-19 12:17:12 Off the coast of Fukushima     60 4.63  
2020-05-19 16:25:10 Off the coast of Ibaraki     30 3.71  
2020-05-19 18:45:48 Near the coast of Amami Oshima     20 4.53  
2020-05-20 00:52:27 Near the coast of Amami Oshima     10 41  
2020-05-20 20:45:25 Off the coast of Hachijojima     30 4.31  
2020-05-20 21:31:42 Off the coast of Fukushima     40 3.61  
2020-05-21 16:57:40 Off the coast of Fukushima     30 3.81  
2020-05-22 15:22:10 Near the coast of Okinawa     10 3.71  
2020-05-22 20:11:45 Near the coast of Okinawa     50 4.93  
2020-05-23 04:33:07 Near the coast of Okinawa     50 5.34  
2020-05-23 16:42:45 Off the southeast coast of Mie     380 4.3Unkn 
2020-05-24 18:36:03 Near the coast of Torishima     190 4.6Unkn 
2020-05-24 21:10:20 Miyakejima     10 4.33  
2020-05-25 02:11:20 Off the coast of Ibaraki     60 3.52  
2020-05-26 01:54:51 Near the coast of Yonagunijima     20 3.52  
2020-05-26 04:38:12 Near the coast of Tanegashima     10 4.84  
2020-05-26 14:57:59 Off the east coast of Kanto     10 4.82  
2020-05-26 18:05:05 Off the east coast of Kanto     10 4.31  
2020-05-27 15:32:04 Off the east coast of Kanto     10 4.72  
2020-05-27 18:19:53 Near the coast of Miyakojima     30 5.24  
2020-05-27 21:56:49 Amakusanada     10 3.52  
2020-05-27 22:23:41 Off the coast of Iwate     10 3.51  
2020-05-28 04:08:55 Off the coast of Kushiro     50 3.51  
2020-05-28 21:29:42 Off the coast of Ibaraki     40 4.53  
2020-05-28 22:17:40 Near the coast of Miyakojima     50 3.52  
2020-05-29 02:46:10 Off the coast of Miyagi     50 3.52  
2020-05-29 05:01:20 Off the coast of Okinawa Main Island     10 3.61  
2020-05-31 03:13:49 Off the coast of Tokachi     100 5.74  
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