J1 Earthquake Early Warning
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Quake Time Epicenter Latitude Longitude Depth Mag Intensity Remarks
2014-04-01 07:36:17 Off the east coast of Aomori 40.6 142.7 10 3.62  
2014-04-01 08:02:05 Off the coast of Ibaraki 36.8 141.3 10 3.52  
2014-04-01 09:50:43 Off the coast of Iwate 39.1 142.6 20 3.51  
2014-04-01 13:08:47 Off the coast of Miyagi 38.2 141.6 50 4.73  
2014-04-01 22:38:31 Off the coast of Fukushima 36.7 142.1 10 3.71  
2014-04-02 00:37:30 Off the coast of Iwate 39.1 142.6 10 3.61  
2014-04-02 03:57:09 Off the east coast of Kanto 36.9 145.3 10 3.9Unkn 
2014-04-03 08:22:48 Southern coast of Iwate 39.2 141.8 60 5.44  
2014-04-03 14:58:42 Off the southeast coast of Kyushu 30.6 132.1 10 3.81  
2014-04-04 00:46:45 Hyuganada 32.6 132.1 30 4.73  
2014-04-04 03:47:05 Off the coast of Miyagi 38.2 142.3 10 3.51  
2014-04-04 14:12:39 Off the coast of Kushiro 43.0 145.4 50 3.21  
2014-04-05 10:16:16 Off the coast of Iwate 39.2 142.5 10 5.33  
2014-04-06 01:24:24 Mino, Eastern Gifu 35.4 137.1 50 3.52  
2014-04-09 00:02:05 Off the coast of Ibaraki 36.3 141.9 10 4.11  
2014-04-10 13:17:14 Northwest Chiba 35.8 140.2 60 4.12  
2014-04-10 13:19:04 Northwest Chiba 35.8 140.2 60 4.23  
2014-04-11 07:43:21 Southwest Hyogo 35.0 134.6 10 4.13  
2014-04-11 23:21:37 Near the coast of Amami Oshima 28.6 129.6 50 4.23  
2014-04-12 00:18:21 Off the east coast of Aomori 40.9 143.1 10 4.02  
2014-04-13 00:19:03 Off the coast of Fukushima 37.7 142.9 10 4.52  
2014-04-13 18:16:02 Off the coast of Fukushima 37.3 141.2 60 5.13  
2014-04-16 03:36:09 Off the coast of Ibaraki 36.2 141.0 30 4.02  
2014-04-16 21:16:19 Off the coast of Iwate 39.1 142.5 30 3.82  
2014-04-17 02:20:10 Off the coast of Miyagi 38.3 142.0 40 4.02  
2014-04-17 03:17:17 Off the coast of Fukushima 37.2 142.2 10 4.82  
2014-04-17 17:23:51 Sea of Ariake 33.0 130.3 10 3.32  
2014-04-17 20:01:40 Off the coast of Miyagi 38.3 142.7 10 3.71  
2014-04-17 23:15:42 Off the coast of Fukushima 37.6 142.1 10 3.81  
2014-04-17 23:43:56 Off the coast of Fukushima 37.5 142.3 10 4.82  
2014-04-18 07:53:03 Southern Ibaraki 36.1 139.9 40 4.84  
2014-04-18 09:02:29 Western Hidaka 42.5 142.2 110 4.43  
2014-04-18 11:00:44 Off the southeast coast of Nemuro Peninsula 42.9 146.5 10 4.12  
2014-04-18 14:02:31 Off the southeast coast of Nemuro Peninsula 42.9 146.5 10 3.51  
2014-04-19 17:09:09 Off the coast of Miyagi 38.1 141.9 90 3.62  
2014-04-20 16:08:04 Off the east coast of Aomori 40.7 142.4 50 3.72  
2014-04-21 04:30:09 Off the coast of Fukushima 36.8 142.1 10 4.21  
2014-04-21 16:46:53 Off the coast of Tokachi 42.4 143.7 80 4.53  
2014-04-22 04:36:14 Off the coast of Miyagi 38.6 142.3 20 3.62  
2014-04-22 06:22:54 Off the east coast of Chiba 35.7 141.0 10 4.63  
2014-04-22 13:58:00 Off the coast of Fukushima 36.8 141.6 10 3.71  
2014-04-22 14:40:35 Off the coast of Miyagi 38.3 142.3 10 3.82  
2014-04-22 20:46:39 Off the east coast of Hachijojima 33.5 141.2 10 5.02  
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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