| Severity |
Coastal Area |
Local Area |
Estimated Arrival Time |
Wave Height |
| 06:40:00 JST 09 Oct 2023 - Original tsunami report |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| 06:40:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| 06:45:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| 07:01:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| 07:21:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| 07:26:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| Slight sea level change |
Southern Pacific coast of Chiba |
0.2 m |
| Slight sea level change |
Chiba Uchibo |
0.2 m |
| Slight sea level change |
Sagami Bay/Miura Peninsula |
0.2 m |
| Slight sea level change |
Shizuoka |
0.2 m |
| Slight sea level change |
Southern coast of Aichi |
0.2 m |
| Slight sea level change |
Mie |
0.2 m |
| Slight sea level change |
Wakayama |
0.2 m |
| Slight sea level change |
Tokushima |
0.2 m |
| Slight sea level change |
Kochi |
0.2 m |
| 07:44:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| Tsunami Advisory |
Kochi |
1 m |
| Slight sea level change |
Southern Pacific coast of Chiba |
0.2 m |
| Slight sea level change |
Chiba Uchibo |
0.2 m |
| Slight sea level change |
Sagami Bay/Miura Peninsula |
0.2 m |
| Slight sea level change |
Shizuoka |
0.2 m |
| Slight sea level change |
Southern coast of Aichi |
0.2 m |
| Slight sea level change |
Mie |
0.2 m |
| Slight sea level change |
Wakayama |
0.2 m |
| Slight sea level change |
Tokushima |
0.2 m |
| Slight sea level change |
Miyazaki |
0.2 m |
| Slight sea level change |
Kagoshima-eastern |
0.2 m |
| Slight sea level change |
Tanegashima/Yakushima |
0.2 m |
| Slight sea level change |
Amami & Tokara Islands |
0.2 m |
| 07:45:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| Tsunami Advisory |
Kochi |
1 m |
| Slight sea level change |
Southern Pacific coast of Chiba |
0.2 m |
| Slight sea level change |
Chiba Uchibo |
0.2 m |
| Slight sea level change |
Sagami Bay/Miura Peninsula |
0.2 m |
| Slight sea level change |
Shizuoka |
0.2 m |
| Slight sea level change |
Southern coast of Aichi |
0.2 m |
| Slight sea level change |
Mie |
0.2 m |
| Slight sea level change |
Wakayama |
0.2 m |
| Slight sea level change |
Tokushima |
0.2 m |
| Slight sea level change |
Miyazaki |
0.2 m |
| Slight sea level change |
Kagoshima-eastern |
0.2 m |
| Slight sea level change |
Tanegashima/Yakushima |
0.2 m |
| Slight sea level change |
Amami & Tokara Islands |
0.2 m |
| 07:49:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| Tsunami Advisory |
Kochi |
1 m |
| Slight sea level change |
Southern Pacific coast of Chiba |
0.2 m |
| Slight sea level change |
Chiba Uchibo |
0.2 m |
| Slight sea level change |
Sagami Bay/Miura Peninsula |
0.2 m |
| Slight sea level change |
Shizuoka |
0.2 m |
| Slight sea level change |
Southern coast of Aichi |
0.2 m |
| Slight sea level change |
Mie |
0.2 m |
| Slight sea level change |
Wakayama |
0.2 m |
| Slight sea level change |
Tokushima |
0.2 m |
| Slight sea level change |
Miyazaki |
0.2 m |
| Slight sea level change |
Kagoshima-eastern |
0.2 m |
| Slight sea level change |
Tanegashima/Yakushima |
0.2 m |
| Slight sea level change |
Amami & Tokara Islands |
0.2 m |
| 07:51:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Southern Pacific coast of Chiba |
1 m |
| Tsunami Advisory |
Chiba Uchibo |
1 m |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| Tsunami Advisory |
Kochi |
1 m |
| Slight sea level change |
Sagami Bay/Miura Peninsula |
0.2 m |
| Slight sea level change |
Shizuoka |
0.2 m |
| Slight sea level change |
Southern coast of Aichi |
0.2 m |
| Slight sea level change |
Mie |
0.2 m |
| Slight sea level change |
Wakayama |
0.2 m |
| Slight sea level change |
Tokushima |
0.2 m |
| Slight sea level change |
Miyazaki |
0.2 m |
| Slight sea level change |
Kagoshima-eastern |
0.2 m |
| Slight sea level change |
Tanegashima/Yakushima |
0.2 m |
| Slight sea level change |
Amami & Tokara Islands |
0.2 m |
| 07:52:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Southern Pacific coast of Chiba |
1 m |
| Tsunami Advisory |
Chiba Uchibo |
1 m |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| Tsunami Advisory |
Kochi |
1 m |
| Slight sea level change |
Sagami Bay/Miura Peninsula |
0.2 m |
| Slight sea level change |
Shizuoka |
0.2 m |
| Slight sea level change |
Southern coast of Aichi |
0.2 m |
| Slight sea level change |
Mie |
0.2 m |
| Slight sea level change |
Wakayama |
0.2 m |
| Slight sea level change |
Tokushima |
0.2 m |
| Slight sea level change |
Miyazaki |
0.2 m |
| Slight sea level change |
Kagoshima-eastern |
0.2 m |
| Slight sea level change |
Tanegashima/Yakushima |
0.2 m |
| Slight sea level change |
Amami & Tokara Islands |
0.2 m |
| 07:54:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Southern Pacific coast of Chiba |
1 m |
| Tsunami Advisory |
Chiba Uchibo |
1 m |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| Tsunami Advisory |
Kochi |
1 m |
| Slight sea level change |
Sagami Bay/Miura Peninsula |
0.2 m |
| Slight sea level change |
Shizuoka |
0.2 m |
| Slight sea level change |
Southern coast of Aichi |
0.2 m |
| Slight sea level change |
Mie |
0.2 m |
| Slight sea level change |
Wakayama |
0.2 m |
| Slight sea level change |
Tokushima |
0.2 m |
| Slight sea level change |
Miyazaki |
0.2 m |
| Slight sea level change |
Kagoshima-eastern |
0.2 m |
| Slight sea level change |
Tanegashima/Yakushima |
0.2 m |
| Slight sea level change |
Amami & Tokara Islands |
0.2 m |
| 08:09:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Southern Pacific coast of Chiba |
1 m |
| Tsunami Advisory |
Chiba Uchibo |
1 m |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| Tsunami Advisory |
Kochi |
1 m |
| Slight sea level change |
Sagami Bay/Miura Peninsula |
0.2 m |
| Slight sea level change |
Shizuoka |
0.2 m |
| Slight sea level change |
Southern coast of Aichi |
0.2 m |
| Slight sea level change |
Mie |
0.2 m |
| Slight sea level change |
Wakayama |
0.2 m |
| Slight sea level change |
Tokushima |
0.2 m |
| Slight sea level change |
Miyazaki |
0.2 m |
| Slight sea level change |
Kagoshima-eastern |
0.2 m |
| Slight sea level change |
Tanegashima/Yakushima |
0.2 m |
| Slight sea level change |
Amami & Tokara Islands |
0.2 m |
| 08:24:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Southern Pacific coast of Chiba |
1 m |
| Tsunami Advisory |
Chiba Uchibo |
1 m |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| Tsunami Advisory |
Kochi |
1 m |
| Tsunami Advisory |
Miyazaki |
1 m |
| Tsunami Advisory |
Kagoshima-eastern |
1 m |
| Tsunami Advisory |
Tanegashima/Yakushima |
1 m |
| Tsunami Advisory |
Amami & Tokara Islands |
1 m |
| Slight sea level change |
Sagami Bay/Miura Peninsula |
0.2 m |
| Slight sea level change |
Shizuoka |
0.2 m |
| Slight sea level change |
Southern coast of Aichi |
0.2 m |
| Slight sea level change |
Mie |
0.2 m |
| Slight sea level change |
Wakayama |
0.2 m |
| Slight sea level change |
Tokushima |
0.2 m |
| 08:25:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Southern Pacific coast of Chiba |
1 m |
| Tsunami Advisory |
Chiba Uchibo |
1 m |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| Tsunami Advisory |
Kochi |
1 m |
| Tsunami Advisory |
Miyazaki |
1 m |
| Tsunami Advisory |
Kagoshima-eastern |
1 m |
| Tsunami Advisory |
Tanegashima/Yakushima |
1 m |
| Tsunami Advisory |
Amami & Tokara Islands |
1 m |
| Slight sea level change |
Sagami Bay/Miura Peninsula |
0.2 m |
| Slight sea level change |
Shizuoka |
0.2 m |
| Slight sea level change |
Southern coast of Aichi |
0.2 m |
| Slight sea level change |
Mie |
0.2 m |
| Slight sea level change |
Wakayama |
0.2 m |
| Slight sea level change |
Tokushima |
0.2 m |
| 08:30:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Southern Pacific coast of Chiba |
1 m |
| Tsunami Advisory |
Chiba Uchibo |
1 m |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| Tsunami Advisory |
Kochi |
1 m |
| Tsunami Advisory |
Miyazaki |
1 m |
| Tsunami Advisory |
Kagoshima-eastern |
1 m |
| Tsunami Advisory |
Tanegashima/Yakushima |
1 m |
| Tsunami Advisory |
Amami & Tokara Islands |
1 m |
| Slight sea level change |
Sagami Bay/Miura Peninsula |
0.2 m |
| Slight sea level change |
Shizuoka |
0.2 m |
| Slight sea level change |
Southern coast of Aichi |
0.2 m |
| Slight sea level change |
Mie |
0.2 m |
| Slight sea level change |
Wakayama |
0.2 m |
| Slight sea level change |
Tokushima |
0.2 m |
| 08:41:00 JST 09 Oct 2023 - Updated or additional information |
| Tsunami Advisory |
Southern Pacific coast of Chiba |
1 m |
| Tsunami Advisory |
Chiba Uchibo |
1 m |
| Tsunami Advisory |
Izu Islands |
1 m |
| Tsunami Advisory |
Ogasawara Islands |
1 m |
| Tsunami Advisory |
Kochi |
1 m |
| Tsunami Advisory |
Miyazaki |
1 m |
| Tsunami Advisory |
Kagoshima-eastern |
1 m |
| Tsunami Advisory |
Tanegashima/Yakushima |
1 m |
| Tsunami Advisory |
Amami & Tokara Islands |
1 m |
| Slight sea level change |
Sagami Bay/Miura Peninsula |
0.2 m |
| Slight sea level change |
Shizuoka |
0.2 m |
| Slight sea level change |
Southern coast of Aichi |
0.2 m |
| Slight sea level change |
Mie |
0.2 m |
| Slight sea level change |
Wakayama |
0.2 m |
| Slight sea level change |
Tokushima |
0.2 m |
| 12:00:00 JST 09 Oct 2023 - Tsunami advisory cancelled |
| 12:02:00 JST 09 Oct 2023 - Updated or additional information |
| Slight sea level change |
Southern Pacific coast of Chiba |
m |
| Slight sea level change |
Chiba Uchibo |
m |
| Slight sea level change |
Izu Islands |
m |
| Slight sea level change |
Ogasawara Islands |
m |
| Slight sea level change |
Sagami Bay/Miura Peninsula |
m |
| Slight sea level change |
Shizuoka |
m |
| Slight sea level change |
Southern coast of Aichi |
m |
| Slight sea level change |
Mie |
m |
| Slight sea level change |
Wakayama |
m |
| Slight sea level change |
Tokushima |
m |
| Slight sea level change |
Kochi |
m |
| Slight sea level change |
Miyazaki |
m |
| Slight sea level change |
Kagoshima-eastern |
m |
| Slight sea level change |
Tanegashima/Yakushima |
m |
| Slight sea level change |
Amami & Tokara Islands |
m |