J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2012-07-01 03:11:54 Off the coast of Ibaraki     10km 4.23  
2012-07-02 11:06:21 Off the coast of Iwate     10km 3.83  
2012-07-06 02:04:33 Nakado-ri, Fukushima     10km 4.63  
2012-07-10 04:25:05 Off the northeast coast of Amami Oshima     10km 5.53  
2012-07-10 12:48:58 Northern Nagano     10km 5.04  
2012-07-10 12:57:21 Northern Nagano     10km 4.54  
2012-07-10 13:03:16 Northern Nagano     10km 4.54  
2012-07-10 13:33:26 Northern Nagano     10km 4.84  
2012-07-11 19:54:28 Off the coast of Ibaraki     10km 4.53  
2012-07-12 13:54:46 Southern Ibaraki     50km 4.53  
2012-07-13 14:14:22 Off the coast of Miyagi     20km 4.93  
2012-07-14 13:04:29 Northern Nagano     10km 4.64  
2012-07-15 23:08:06 Southern Souya Subprefecture     10km 4.64  
2012-07-16 04:31:31 Southern Ibaraki     50km 4.93  
2012-07-16 06:49:46 Northern Kamikawa Subprefecture     10km 3.63  
2012-07-18 04:39:35 Northern Kamikawa Subprefecture     10km 3.63  
2012-07-18 04:50:19 Northern Kamikawa Subprefecture     10km 3.53  
2012-07-22 13:42:03 Southern Tokachi Subprefecture     10km 5.33  
2012-07-22 17:20:34 Off the coast of Miyagi     50km 4.73  
2012-07-26 02:20:12 Off the west coast of Satsuma Peninsula     130km 4.93  
2012-07-26 15:00:37 Aizu, Fukushima     10km 3.53  
2012-07-26 19:30:01 Southern Ibaraki     60km 4.43  
2012-07-27 23:40:04 Southern Ibaraki     60km 4.33  
2012-07-30 07:05:08 Off the coast of Iwate     10km 5.63  
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
2025 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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