J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2020-03-01 09:08:37 Off the coast of Fukushima     40 3.81  
2020-03-02 09:47:39 Off the coast of Sanriku     10 41  
2020-03-03 03:28:57 Kii Channel     10 3.93  
2020-03-03 12:20:23 Off the coast of Uraga     60 3.52  
2020-03-03 18:31:04 Near the coast of Tanegashima     10 4.73  
2020-03-04 07:17:23 Near the coast of Okinawa     10 3.61  
2020-03-04 16:25:46 Off the east coast of Chiba     10 4.13  
2020-03-05 09:39:32 Off the east coast of Chiba     10 3.83  
2020-03-06 23:55:06 Off the coast of Kushiro     50 3.72  
2020-03-07 04:15:31 Near the coast of Okinawa     20 3.52  
2020-03-08 01:18:44 Off the east coast of Chiba     10 3.83  
2020-03-09 04:28:45 Bungo channel     60 53  
2020-03-10 09:13:30 Off the coast of Miyagi     40 42  
2020-03-10 18:29:25 Near the coast of Iwo Jima     10 5.12  
2020-03-11 14:03:37 Off the coast of Miyagi     30 3.72  
2020-03-12 20:07:11 Off the coast of Miyagi     40 3.52  
2020-03-13 00:38:34 Near the coast of Chichijima     10 4.8Unkn 
2020-03-13 18:07:31 Off the coast of Kushiro     60 3.72  
2020-03-13 22:06:40 Hachijo-jima     10 4.53  
2020-03-14 05:39:27 Off the coast of Miyagi     40 3.51  
2020-03-14 13:34:33 Hachijo-jima     10 3.92  
2020-03-14 16:55:39 Off the northwest coast of Amami Oshima     10 42  
2020-03-14 19:34:05 Off the coast of Miyagi     10 3.41  
2020-03-15 14:16:31 Near the coast of Okinawa     80 4.22  
2020-03-16 20:42:16 Off the coast of Northwest Fukuoka     10 3.93  
2020-03-17 16:54:52 Off the coast of Miyagi     30 3.52  
2020-03-17 21:38:33 Off the coast of Fukushima     60 3.62  
2020-03-18 16:54:10 Off the coast of Fukushima     40 3.52  
2020-03-19 01:32:40 Tomakomai Bay     20 4.43  
2020-03-20 13:11:17 Near Taiwan     50 41  
2020-03-21 12:37:53 Off the east coast of Aomori     60 3.52  
2020-03-21 18:03:06 Off the coast of Fukushima     10 3.82  
2020-03-23 22:57:28 Near the coast of Okinawa     10 4.22  
2020-03-24 02:07:47 Near the coast of Miyakojima     50 3.62  
2020-03-24 20:13:15 Off the coast of Iwate     30 3.52  
2020-03-25 00:59:57 Off the coast of Ibaraki     100 3.62  
2020-03-26 07:18:20 Off the coast of Miyagi     20 3.52  
2020-03-27 23:11:09 Niijima-Kozu     10 4.13  
2020-03-28 04:33:00 Off the coast of Uraga     60 3.52  
2020-03-28 09:57:52 Off the coast of Uraga     70 53  
2020-03-28 20:33:55 Near the coast of Okinawa     80 3.51  
2020-03-29 12:38:58 Near the coast of Ishigakijima     10 43  
2020-03-29 12:52:01 Near the coast of Ishigakijima     10 3.92  
2020-03-29 20:05:38 Off the east coast of Aomori     90 3.52  
2020-03-30 00:01:34 Near the coast of Ishigakijima     10 3.93  
2020-03-31 00:52:48 Near the coast of Ishigakijima     30 5.33  
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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