J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2021-05-01 02:45:36 Off the southeast coast of Mie     450 4.2Unkn 
2021-05-01 15:58:35 Off the coast of Miyagi     50 3.52  
2021-05-02 20:06:33 Off the coast of Hachijojima     130 3.61  
2021-05-03 14:07:36 Off the northwest coast of Ishigaki Island     110 5.12  
2021-05-03 14:29:17 Off the coast of Miyagi     50 3.52  
2021-05-07 00:15:14 Off the coast of Uraga     80 3.72  
2021-05-08 13:19:03 Near the coast of Torishima     110 4.92  
2021-05-09 01:57:29 Off the coast of Ibaraki     10 3.71  
2021-05-10 00:17:58 Niijima-Kozu     10 3.83  
2021-05-10 00:22:31 Niijima-Kozu     10 3.63  
2021-05-10 01:23:52 Off the southeast coast of Nemuro Peninsula     40 3.71  
2021-05-10 20:10:01 Off the south coast of Tokaido     400 3.5Unkn 
2021-05-11 00:47:04 Off the east coast of Aomori     60 3.52  
2021-05-12 08:30:00 Off the coast of Iwate     20 3.82  
2021-05-12 12:21:20 Central Sea of Japan     470 3.6Unkn 
2021-05-13 10:26:34 Off the coast of Fukushima     50 3.31  
2021-05-14 08:58:14 Off the coast of Fukushima     50 6.24  
2021-05-14 09:23:18 Off the coast of Fukushima     20 3.51  
2021-05-14 21:50:59 Off the coast of Fukushima     40 3.51  
2021-05-15 20:03:54 Off the coast of Ibaraki     40 4.42  
2021-05-16 12:23:55 Off the coast of Tokachi     10 5.33  
2021-05-16 14:07:12 Off the coast of Tokachi     10 4.32  
2021-05-16 14:18:02 Off the coast of Tokachi     70 3.51  
2021-05-16 15:41:10 Off the coast of Fukushima     60 4.53  
2021-05-16 17:52:31 Off the coast of Kushiro     60 3.61  
2021-05-17 20:01:31 Near Iriomotejima     10 4.33  
2021-05-18 00:49:04 Hachijo-jima     220 3.5Unkn 
2021-05-18 03:46:27 Off the coast of Miyagi     30 3.62  
2021-05-18 08:58:36 Off the coast of Kushiro     100 3.82  
2021-05-18 14:23:43 Off the west coast of Ogasawara Islands     440 4.5Unkn 
2021-05-19 00:48:28 Off the coast of Kushiro     20 3.91  
2021-05-19 02:17:43 Off the coast of Miyagi     20 3.51  
2021-05-19 06:40:08 Off the coast of Miyagi     50 3.52  
2021-05-19 19:21:40 Off the coast of Iwate     30 3.62  
2021-05-19 20:54:30 Off the coast of Fukushima     20 3.61  
2021-05-20 05:27:25 Off the coast of Iwate     30 3.92  
2021-05-20 06:32:54 Off the coast of Kushiro     90 3.61  
2021-05-21 07:11:00 Off the east coast of Chiba     10 4.13  
2021-05-23 14:50:43 Near the coast of Miyakojima     30 3.52  
2021-05-23 18:15:58 Off the coast of Fukushima     40 3.72  
2021-05-24 01:27:34 Off the coast of Akita     170 3.9Unkn 
2021-05-24 12:52:16 Hachijo-jima     10 4.22  
2021-05-24 12:59:56 Hachijo-jima     10 3.51  
2021-05-24 14:15:57 Hachijo-jima     10 3.72  
2021-05-24 23:41:03 Near the coast of Okinawa     10 4.72  
2021-05-25 01:19:20 Off the coast of Fukushima     40 3.92  
2021-05-25 03:11:14 Near Iriomotejima     20 3.52  
2021-05-25 16:52:44 Near the coast of Miyakojima     40 3.82  
2021-05-25 20:10:43 Off the coast of Okinawa Main Island     10 3.92  
2021-05-27 06:04:02 Off the east coast of Aomori     30 4.52  
2021-05-27 12:06:16 East China Sea     10 62  
2021-05-27 23:56:53 Off the coast of Miyagi     10 3.51  
2021-05-28 10:05:47 Tsugaru Strait     160 3.7Unkn 
2021-05-29 08:21:07 Off the coast of Ibaraki     20 4.72  
2021-05-29 09:04:51 Off the coast of Ibaraki     30 4.62  
2021-05-29 09:42:55 Off the coast of Ibaraki     70 3.51  
2021-05-29 10:02:44 Off the coast of Ibaraki     10 4.62  
2021-05-29 19:10:41 Off the coast of Uraga     70 5.13  
2021-05-30 00:30:17 Off the southeast coast of Nemuro Peninsula     10 3.92  
2021-05-30 22:33:46 Off the east coast of the Ogasawara Islands     10 5.91  
2021-05-31 00:21:05 Off the south coast of Tokaido     400 3.6Unkn 
2021-05-31 05:35:54 Near the coast of Yonagunijima     10 4.12  
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
2021 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