J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2023-03-27 00:04:20 Off the coast of Miyagi     50 54  
2023-03-28 18:18:28 Off the east coast of Aomori     40 5.94  
2023-05-01 12:22:10 Near the coast of Okinawa     30 64  
2023-05-06 02:47:16 Off the east coast of Aomori     60 5.54  
2023-05-09 11:05:53 Off the coast of Noto Peninsula     10 4.64  
2023-05-10 21:54:47 Off the coast of Noto Peninsula     10 5.24  
2023-05-11 12:11:04 Near the coast of Tokara Islands     20 5.44  
2023-05-11 22:33:15 Near the coast of Miyakojima     20 5.94  
2023-05-14 17:11:54 Hachijo-jima     10 5.44  
2023-05-18 19:49:19 Toyama Bay     10 4.54  
2023-05-22 10:53:10 Niijima-Kozu     10 4.44  
2023-05-22 17:27:13 Niijima-Kozu     10 4.44  
2023-05-22 19:46:26 Niijima-Kozu     10 4.74  
2023-05-23 04:31:35 Niijima-Kozu     10 4.64  
2023-06-01 00:03:46 Off the coast of Noto Peninsula     10 4.54  
2023-06-01 20:11:06 Near the coast of Tokara Islands     10 4.94  
2023-06-09 20:45:30 Off the coast of Niigata Chuetsu     10 4.64  
2023-06-22 10:24:17 Near the coast of Okinawa     50 5.24  
2023-09-08 18:28:48 Off the coast of Miyagi     30 5.34  
2023-09-09 02:28:51 Near the coast of Tokara Islands     10 54  
2023-09-09 03:08:14 Near the coast of Tokara Islands     10 4.94  
2023-09-10 14:28:33 Near the coast of Tokara Islands     10 4.64  
2023-11-01 07:34:00 Kii Channel     60 5.34  
2023-11-07 12:55:52 Near the coast of Tokara Islands     10 4.84  
2023-11-11 22:02:38 Near the coast of Tokara Islands     10 4.74  
2023-11-18 22:49:37 Near the coast of Tokara Islands     10 4.74  
2023-11-20 06:01:31 Off the east coast of Aomori     60 5.64  
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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