J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2013-12-18 19:14:08 宮城県沖     20 4.73  
2013-12-18 22:50:17 釧路地方中南部     140 3.51  
2013-12-18 22:54:16 三陸沖     10 3.61  
2013-12-19 13:25:51 三陸沖     10 4.92  
2013-12-19 22:55:56 沖縄本島近海     40 4.23  
2013-12-20 15:43:10 西表島付近     30 4.23  
2013-12-21 01:10:46 茨城県南部     60 5.64  
2013-12-21 10:34:15 千葉県北東部     30 5.44  
2013-12-21 16:19:05 胆振地方中東部     10 3.32  
2013-12-21 22:54:09 宮城県沖     10 4.32  
2013-12-25 07:41:57 茨城県沖     40 3.82  
2013-12-26 03:43:22 青森県東方沖     50 3.72  
2013-12-26 06:47:38 釧路沖     60 3.62  
2013-12-26 18:14:32 福島県沖     10 3.51  
2013-12-27 19:31:17 岩手県沖     20 4.93  
2013-12-28 21:27:05 福島県沖     50 4.62  
2013-12-29 10:22:16 宮城県沖     40 4.53  
2013-12-29 23:29:13 根室半島南東沖     100 3.41  
2013-12-29 23:51:47 福島県沖     10 3.71  
2013-12-30 18:44:15 茨城県沖     20 3.72  
2013-12-30 21:55:55 伊豆大島近海     10 4.73  
2013-12-30 22:09:57 伊豆大島近海     10 4.33  
2013-12-31 10:02:59 茨城県北部     10 5.35 Lower  
2013-12-31 10:09:50 茨城県北部     10 3.63  
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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