J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2025-10-01 23:50:05 Off the coast of Miyagi     70 4.63  
2025-10-02 09:08:59 Iwate Northern Inland     10 3.63  
2025-10-03 12:37:07 Off the southeast coast of Chiba     60 4.22  
2025-10-03 15:20:16 Off the coast of Fukushima     70 4.43  
2025-10-05 00:21:08 Off the coast of Fukushima     60 5.94  
2025-10-05 14:38:26 Off the southeast coast of Mie     30 3.81  
2025-10-06 00:35:38 Kushiro-South Central     110 3.92  
2025-10-07 09:30:23 Off the coast of Fukushima     70 53  
2025-10-07 10:17:17 Off the coast of Fukushima     30 4.51  
2025-10-07 14:10:52 Off the coast of Okinawa Main Island     130 4.32  
2025-10-08 02:02:56 Near the coast of Tokara Islands     10 42  
2025-10-08 06:38:37 Near the coast of Tokara Islands     10 5.34  
2025-10-08 06:51:07 Near the coast of Tokara Islands     10 4.12  
2025-10-10 21:24:53 Off the coast of Miyagi     60 3.62  
2025-10-11 07:06:35 Off the coast of Uraga     80 3.51  
2025-10-11 23:24:22 Off the coast of Okinawa Main Island     90 4.12  
2025-10-13 12:25:45 Off the coast of Miyagi     90 4.63  
2025-10-14 07:06:03 Iwate Northern Coast     20 43  
2025-10-14 12:34:24 Off the coast of Akita     20 4.63  
2025-10-15 17:50:19 Miyagi-South     80 3.72  
2025-10-16 03:57:20 Off the coast of Fukushima     20 3.72  
2025-10-19 22:23:26 Off the coast of Okinawa Main Island     160 4.7Unkn 
2025-10-21 14:20:46 Off the coast of Miyagi     50 3.62  
2025-10-22 03:48:31 Off the coast of Fukushima     40 4.22  
2025-10-22 18:17:31 Off the coast of Kushiro     50 54  
2025-10-24 06:09:26 Off the coast of Fukushima     70 4.83  
2025-10-24 09:27:14 Off the coast of Miyagi     60 3.52  
2025-10-24 15:47:24 Chiba-Northwestern     70 4.12  
2025-10-25 01:40:09 Off the southeast coast of Nemuro Peninsula     50 6.15 Lower  
2025-10-26 12:04:54 Tochigi-South     10 4.43  
2025-10-26 12:07:41 Tochigi-South     10 4.13  
2025-10-26 22:34:56 Chiba-Northwestern     80 4.33  
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
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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