J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2020-09-01 09:49:37 Near the coast of Miyakojima     50 3.62  
2020-09-02 19:35:42 Off the southeast coast of Nemuro Peninsula     50 4.93  
2020-09-03 00:21:38 Near the coast of Chichijima     10 5Unkn 
2020-09-04 23:20:41 Near the coast of Ishigakijima     60 4.22  
2020-09-05 04:54:57 Off the northeast coast of Amami Oshima     60 41  
2020-09-05 10:34:35 Off the coast of Ibaraki     10 4.42  
2020-09-05 16:27:00 Off the coast of Miyagi     30 3.62  
2020-09-07 06:33:48 Off the coast of Ibaraki     40 53  
2020-09-07 08:53:00 Off the east coast of Chiba     10 4.32  
2020-09-07 10:19:24 Off the coast of Kushiro     50 4.12  
2020-09-07 12:30:37 Off the coast of Ibaraki     20 3.61  
2020-09-07 22:33:26 Off the coast of Fukushima     50 3.52  
2020-09-08 11:58:14 Near the coast of Okinawa     60 4.73  
2020-09-09 01:31:49 Off the coast of Iwate     10 3.72  
2020-09-09 11:45:26 Off the coast of Iwate     50 3.42  
2020-09-09 21:05:15 Off the coast of Kushiro     50 31  
2020-09-10 12:26:25 Off the coast of Ibaraki     20 43  
2020-09-11 06:16:46 Off the coast of Hachijojima     60 3.51  
2020-09-11 11:13:20 Off the coast of Miyagi     40 4.22  
2020-09-12 06:23:04 Off the coast of Iwate     30 3.41  
2020-09-12 11:37:59 Off the coast of Ibaraki     60 4.43  
2020-09-12 11:44:08 Off the coast of Miyagi     40 6.15 Lower  
2020-09-12 11:50:42 Off the coast of Miyagi     30 4.83  
2020-09-12 12:00:14 Off the coast of Miyagi     10 3.61  
2020-09-12 12:02:50 Off the coast of Miyagi     10 3.72  
2020-09-12 12:30:52 Off the coast of Miyagi     40 4.53  
2020-09-12 12:49:04 Off the coast of Miyagi     40 4.53  
2020-09-12 14:47:22 Off the southeast coast of Nemuro Peninsula     50 3.62  
2020-09-12 19:04:55 Off the coast of Miyagi     20 3.62  
2020-09-13 05:29:36 Off the coast of Miyagi     40 4.43  
2020-09-13 19:44:39 Off the east coast of Aomori     10 4.63  
2020-09-13 22:26:44 Off the coast of Hachijojima     50 4.32  
2020-09-14 00:57:41 Near the coast of Okinawa     10 4.42  
2020-09-14 06:25:00 Off the coast of Miyagi     40 3.82  
2020-09-14 20:30:19 Off the northwest coast of Ishigaki Island     80 4.42  
2020-09-15 01:05:12 Off the west coast of Satsuma Peninsula     10 3.71  
2020-09-15 14:58:05 Central Sea of Japan     370 4Unkn 
2020-09-15 15:06:55 Off the east coast of Chiba     10 4.43  
2020-09-17 04:04:51 Tsugaru Strait     140 3.92  
2020-09-17 09:17:59 Off the coast of Iwate     50 4.33  
2020-09-19 14:24:40 Off the east coast of Aomori     40 3.31  
2020-09-20 19:48:35 Off the southeast coast of Chiba     70 4.32  
2020-09-26 01:46:45 Off the coast of Hachijojima     120 4.52  
2020-09-26 03:07:00 Off the coast of Miyagi     10 3.51  
2020-09-26 04:57:04 Hyuganada     30 3.52  
2020-09-26 15:23:49 Near the coast of Yonagunijima     40 4.62  
2020-09-27 15:38:21 Near the coast of Miyakojima     30 4.73  
2020-09-30 13:37:16 Near Taiwan     120 4.82  
2020-09-30 16:47:38 Near the coast of Miyakojima     30 3.51  
2020-09-30 22:58:43 Off the coast of Miyagi     30 4.53  
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
2022 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
2023 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
2024 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

Information provided by the Japan Meteorological Agency.
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