NOAA / NCEI
Tsunamis in Japan
229 confirmed tsunamis originating in Japan. Highest documented wave: 90.0 m (W. Hokkaido Island, 1741).
Map of observation sites
Tsunami source locations; colour and size show the highest documented water height. Click to open the event.
All documented events
229| Date | Location / station | Magnitude | Maximum documented water height | Deaths | Observation records |
|---|---|---|---|---|---|
| Apr 20, 2026, 7:53 AM UTC | Off Northeast Coast Honshu | 7.4 | 0.80 m | — | 24 |
| Dec 12, 2025, 2:44 AM UTC | Off Northeast Coast Honshu | 6.7 | 0.20 m | — | 3 |
| Dec 8, 2025, 2:15 PM UTC | Off Northeast Coast Honshu | 7.6 | 0.70 m | — | 19 |
| Nov 9, 2025, 8:03 AM UTC | Sanriku | 6.8 | 0.20 m | — | 4 |
| Jan 13, 2025, 12:19 PM UTC | Hyuganada Sea | 6.8 | 0.23 m | — | 9 |
| Sep 23, 2024, 11:14 PM UTC | Izu Islands, Japan | 5.6 | 0.50 m | — | 12 |
| Aug 8, 2024, 7:42 AM UTC | Hyuganada Sea | 7.1 | 0.50 m | — | 21 |
| Jan 1, 2024, 7:10 AM UTC | Honshu: W Coast | 7.5 | 11.3 m | 549 | 537 |
| Oct 8, 2023 | Izu Islands, Japan | 4.9 | 0.60 m | — | 29 |
| Oct 6, 2023, 1:31 AM UTC | Izu Islands, Japan | 6.1 | 0.08 m | — | 4 |
| May 5, 2023, 5:42 AM UTC | Noto Peninsula, Japan | 6.2 | 0.10 m | 1 | 2 |
| Mar 16, 2022, 2:36 PM UTC | Off Fukushima Prefecture | 7.3 | 0.31 m | 4 | 11 |
| Feb 13, 2021, 2:07 PM UTC | Off Fukushima Prefecture | 7.1 | 0.10 m | 1 | 4 |
| Jun 18, 2019, 1:22 PM UTC | Niigata | 6.4 | 0.11 m | — | 8 |
| Nov 21, 2016, 8:59 PM UTC | E. Coast Honshu Island | 6.9 | 1.44 m | — | 44 |
| Feb 16, 2015, 11:06 PM UTC | Honshu | 6.7 | 0.27 m | — | 3 |
| Jul 11, 2014, 7:23 PM UTC | Sanriku | 6.5 | 0.20 m | — | 6 |
| Oct 25, 2013, 5:10 PM UTC | E. Coast Honshu Island | 7.1 | 0.40 m | — | 9 |
| Dec 7, 2012, 8:18 AM UTC | Off East Coast of Honshu Island | 7.2 | 1.00 m | — | 3 |
| Jul 10, 2011, 12:57 AM UTC | Off East Coast of Honshu Island | 7.0 | 0.09 m | — | 3 |
| Apr 7, 2011, 2:32 PM UTC | E. Coast Honshu Island | 7.1 | 0.08 m | 3 | 1 |
| Mar 11, 2011, 5:46 AM UTC | Honshu Island | 9.1 | 39.3 m | 18,423 | 6406 |
| Mar 9, 2011, 2:45 AM UTC | Honshu Island | 7.3 | 0.60 m | — | 24 |
| Dec 21, 2010, 5:19 PM UTC | Bonin Islands | 7.4 | 0.15 m | — | 15 |
| Aug 10, 2009, 8:07 PM UTC | Honshu: S Coast | 6.4 | 0.60 m | 1 | 5 |
| Sep 11, 2008, 12:20 AM UTC | Hokkaido Island | 6.8 | 0.09 m | 6 | 1 |
| Jul 19, 2008, 2:39 AM UTC | Off East Coast of Honshu Island | 6.9 | 0.20 m | — | 3 |
| Jun 13, 2008, 11:43 PM UTC | Aratozawa, Japan | 6.9 | 2.50 m | 23 | — |
| Jul 16, 2007, 1:13 AM UTC | Honshu: W Coast | 6.6 | — | 15 | 1 |
| Mar 25, 2007, 12:41 AM UTC | Honshu: W Coast | 6.7 | 0.10 m | 1 | 6 |
| Oct 23, 2006, 9:17 PM UTC | Izu Islands, Japan | 6.4 | 0.16 m | — | 5 |
| Nov 14, 2005, 9:38 PM UTC | E. Coast Honshu Island | 7.0 | 0.42 m | — | 1 |
| Aug 16, 2005, 2:46 AM UTC | E. Coast Honshu Island | 7.2 | 0.05 m | — | 1 |
| Jan 19, 2005, 6:11 AM UTC | E. Honshu Island | 6.6 | 0.39 m | — | 11 |
| Nov 28, 2004, 6:32 PM UTC | Hokkaido Island | 7.0 | 0.12 m | — | 2 |
| Sep 5, 2004, 2:57 PM UTC | South Coast Honshu Island | 7.4 | 0.93 m | — | 24 |
| Sep 5, 2004, 10:07 AM UTC | South Coast Honshu Island | 7.2 | 0.63 m | — | 12 |
| Oct 31, 2003, 1:06 AM UTC | E. Honshu Island | 7.0 | 0.32 m | — | 4 |
| Sep 25, 2003, 7:50 PM UTC | Hokkaido Island | 8.3 | 4.40 m | 2 | 268 |
| Jul 1, 2000, 7:01 AM UTC | Kozu-Shima Island, Honshu | 6.1 | 0.07 m | 1 | 4 |
| Dec 2, 1996, 10:17 PM UTC | Sea of Japan | 6.7 | 0.20 m | — | 4 |
| Oct 19, 1996, 2:44 PM UTC | Kyushu Island | 6.7 | 0.55 m | — | 6 |
| Sep 4, 1996, 6:16 PM UTC | Honshu Island | 5.7 | 0.30 m | — | 14 |
| Oct 19, 1995, 2:41 AM UTC | Ryukyu Islands | 6.8 | 1.50 m | — | 16 |
| Oct 18, 1995, 10:37 AM UTC | Ryukyu Islands | 7.1 | 2.59 m | — | 42 |
| Jan 16, 1995, 8:46 PM UTC | Kobe, Japan | 6.9 | 0.34 m | 6,434 | 2 |
| Dec 28, 1994, 12:19 PM UTC | Tohuku, Japan | 7.8 | 0.53 m | 3 | 13 |
| Apr 8, 1994, 1:10 AM UTC | Hokkaido Island | 6.4 | 0.11 m | — | 3 |
| Jul 12, 1993, 1:17 PM UTC | Sea of Japan | 7.7 | 32.0 m | 231 | 190 |
| Jul 18, 1992, 8:36 AM UTC | Honshu Island | 7.0 | 0.30 m | — | 4 |
| Sep 23, 1990, 9:13 PM UTC | W. of Bonin Islands, Izu Is., Japan | 6.5 | 0.20 m | — | 4 |
| Oct 29, 1989, 5:25 AM UTC | N. Honshu Island | 6.5 | 0.11 m | — | 4 |
| Mar 24, 1987, 12:49 PM UTC | Honshu Island | 5.1 | 0.16 m | — | 3 |
| Mar 18, 1987, 3:36 AM UTC | Kyushu Island | 6.7 | 0.04 m | 2 | 1 |
| Feb 6, 1987, 1:16 PM UTC | E. Honshu Island | 6.7 | 0.10 m | — | 3 |
| Sep 18, 1984, 5:02 PM UTC | Honshu Island | 6.9 | 0.13 m | — | 12 |
| Aug 6, 1984, 7:06 PM UTC | Kyushu, Japan | 7.0 | 0.20 m | — | 6 |
| Jun 13, 1984, 2:29 AM UTC | Tori Shima, Okinawa | 5.5 | 0.50 m | — | 9 |
| Jun 21, 1983, 6:25 AM UTC | N. Honshu Island | 6.9 | 1.00 m | — | 27 |
| May 26, 1983, 2:59 AM UTC | Noshiro, Japan | 7.8 | 14.9 m | 104 | 233 |
| Jul 23, 1982, 2:23 PM UTC | Ibaraki, Japan | 7.2 | 0.40 m | — | 22 |
| Mar 21, 1982, 2:32 AM UTC | Hokkaido Island | 6.9 | 1.30 m | 110 | 31 |
| Jan 18, 1981, 6:17 PM UTC | E. Honshu Island | 6.9 | 0.37 m | — | 26 |
| Jun 29, 1980, 7:20 AM UTC | Honshu Island | 6.2 | 0.56 m | — | 16 |
| Feb 20, 1979, 6:32 AM UTC | Iwate, Japan | 6.4 | 0.12 m | — | 11 |
| Jun 12, 1978, 8:14 AM UTC | Sanriku | 7.7 | 0.60 m | 28 | 31 |
| Jan 14, 1978, 3:24 AM UTC | Tokaido | 6.6 | 0.35 m | 25 | 14 |
| May 8, 1974, 11:33 PM UTC | Tokaido | 6.7 | 0.20 m | 30 | 5 |
| Jun 17, 1973, 3:55 AM UTC | Hokkaido Island | 7.7 | 5.96 m | — | 70 |
| Dec 4, 1972, 10:16 AM UTC | Chichi Jima | 7.4 | 0.50 m | — | 39 |
| Feb 29, 1972, 9:22 AM UTC | East Off Hachijo Island | 7.4 | 0.42 m | — | 28 |
| Aug 2, 1971, 7:24 AM UTC | Japan Trench | 7.3 | 0.51 m | — | 17 |
| Jul 25, 1970, 10:41 PM UTC | Seikaido | 7.0 | 0.32 m | — | 35 |
| Apr 21, 1969, 7:19 AM UTC | Ryukyu Islands | 6.5 | 0.10 m | — | 6 |
| Jun 12, 1968, 1:41 PM UTC | Sanriku | 7.2 | 0.95 m | — | 28 |
| May 16, 1968, 10:39 AM UTC | Off Coast of Honshu Island | 7.5 | 0.58 m | — | 10 |
| May 16, 1968, 12:48 AM UTC | Off East Coast of Honshu Island | 8.2 | 6.00 m | 52 | 321 |
| Apr 1, 1968, 12:42 AM UTC | Seikaido | 7.5 | 3.07 m | 1 | 61 |
| Dec 10, 1964, 3:11 PM UTC | NW. Honshu Island | 6.3 | 0.10 m | — | 3 |
| Jun 16, 1964, 4:01 AM UTC | NW. Honshu Island | 7.6 | 5.80 m | 36 | 157 |
| May 7, 1964, 7:58 AM UTC | NW. Honshu Island | 6.9 | 0.60 m | — | 34 |
| Apr 23, 1962, 5:58 AM UTC | SE. Hokkaido Island | 7.0 | 0.10 m | — | 10 |
| Apr 12, 1962, 12:52 AM UTC | Sanriku | 7.2 | 1.00 m | — | 12 |
| Nov 15, 1961, 7:17 AM UTC | SE. Hokkaido Island | 6.9 | 0.10 m | — | 9 |
| Aug 11, 1961, 3:51 PM UTC | SE. Hokkaido Island | 7.0 | 0.10 m | — | 9 |
| Jul 18, 1961, 2:04 PM UTC | Ryukyu Islands | 6.6 | 0.20 m | — | 6 |
| Feb 26, 1961, 6:10 PM UTC | Seikaido | 7.6 | 0.65 m | 2 | 29 |
| Jan 16, 1961, 12:12 PM UTC | Kashima, Japan | 6.5 | 0.40 m | — | 4 |
| Jan 16, 1961, 7:20 AM UTC | Kashima, Japan | 6.8 | 0.40 m | — | 5 |
| Jul 29, 1960, 5:31 PM UTC | Sanriku | 6.7 | 0.30 m | — | 5 |
| Mar 23, 1960, 12:23 AM UTC | Sanriku | 6.7 | 0.75 m | — | 12 |
| Mar 20, 1960, 5:07 PM UTC | Sanriku | 7.5 | 1.00 m | — | 19 |
| Oct 26, 1959, 7:35 AM UTC | Sanriku | 6.7 | 0.11 m | — | 8 |
| Jan 22, 1959, 5:10 AM UTC | Sanriku | 6.8 | 0.80 m | — | 9 |
| Nov 18, 1954, 8:44 PM UTC | Miyagi, Japan | 6.1 | — | — | 3 |
| Nov 25, 1953, 5:48 PM UTC | Kashima, Japan | 7.4 | 3.00 m | 1 | 33 |
| Mar 11, 1953 | Myojinsho Submarine Volcano | — | 6.00 m | — | 2 |
| Sep 24, 1952, 3:23 AM UTC | Myojinsho Submarine Volcano | — | 0.46 m | 31 | 1 |
| Mar 9, 1952, 5:04 PM UTC | SE. Hokkaido Island | 7.0 | 0.30 m | — | 4 |
| Mar 4, 1952, 1:22 AM UTC | SE. Hokkaido Island | 8.1 | 6.54 m | 33 | 204 |
| Apr 17, 1948, 4:11 PM UTC | Tokaido | 7.2 | 0.60 m | — | 3 |
| Nov 4, 1947, 12:09 AM UTC | W. Hokkaido Island | 7.0 | 2.00 m | — | 4 |
| Dec 20, 1946, 7:19 PM UTC | Honshu: S Coast | 8.3 | 6.60 m | 1,362 | 253 |
| Feb 10, 1945, 4:57 AM UTC | Sanriku | 7.3 | 0.40 m | 2 | 1 |
| Jan 12, 1945, 6:38 PM UTC | Tokaido | 7.1 | 1.00 m | 2,306 | 7 |
| Dec 7, 1944, 4:35 AM UTC | Off Southeast Coast Kii Peninsula | 8.1 | 10.0 m | 1,223 | 136 |
| Jun 13, 1943, 5:12 AM UTC | SE. Hokkaido Island | 7.1 | 0.60 m | — | 1 |
| Nov 18, 1941, 4:46 PM UTC | Seikaido | 7.4 | 1.20 m | 2 | 11 |
| Aug 1, 1940, 3:08 PM UTC | W. Hokkaido Island | 7.5 | 5.00 m | 10 | 58 |
| May 1, 1939, 5:58 AM UTC | NW. Honshu Island | 7.0 | 1.20 m | 27 | 22 |
| Mar 20, 1939, 3:22 AM UTC | Seikaido | 6.6 | 0.80 m | 1 | 4 |
| Nov 30, 1938, 2:29 AM UTC | Sanriku | 7.0 | 0.20 m | — | 9 |
| Nov 22, 1938, 1:14 AM UTC | Sanriku | 6.9 | 0.30 m | — | 4 |
| Nov 13, 1938, 10:31 PM UTC | Sanriku | 6.0 | 0.75 m | — | 7 |
| Nov 6, 1938, 9:38 PM UTC | Off Fukushima Prefecture | 7.1 | 1.25 m | — | 11 |
| Nov 6, 1938, 8:53 AM UTC | Off Fukushima Prefecture | 7.5 | 1.26 m | — | 15 |
| Nov 5, 1938, 10:50 AM UTC | Sanriku | 7.6 | 0.56 m | — | 12 |
| Nov 5, 1938, 8:43 AM UTC | Sanriku | 7.7 | 0.57 m | 1 | 17 |
| Jun 10, 1938, 9:53 AM UTC | Ryukyu Islands | 7.6 | 1.50 m | — | 1 |
| May 28, 1938, 4:42 PM UTC | E. Hokkaido Island | 6.1 | 0.90 m | 1 | 2 |
| May 23, 1938, 7:18 AM UTC | Japan Trench | 7.1 | 0.83 m | — | 7 |
| Nov 2, 1936, 8:46 PM UTC | Sanriku | 7.7 | 0.70 m | — | 10 |
| Oct 18, 1935, 12:11 AM UTC | Sanriku | 7.0 | 0.20 m | — | 2 |
| Oct 12, 1935, 4:45 PM UTC | Sanriku | 7.2 | 0.30 m | — | 8 |
| Jun 18, 1933, 9:37 PM UTC | Sanriku | 7.1 | 0.20 m | — | 8 |
| Mar 2, 1933, 5:31 PM UTC | Sanriku | 8.4 | 29.0 m | 3,022 | 293 |
| Nov 2, 1931, 10:02 AM UTC | Seikaido | 7.1 | 0.80 m | 1 | 9 |
| Mar 9, 1931, 3:49 AM UTC | Sanriku | 7.6 | 0.40 m | — | 7 |
| May 21, 1929, 4:35 PM UTC | Hyuganada Sea | 7.1 | 0.70 m | — | 1 |
| May 27, 1928, 9:50 AM UTC | Sanriku | 7.0 | 0.45 m | — | 8 |
| Aug 5, 1927, 9:13 PM UTC | Sanriku | 6.9 | 0.10 m | — | 5 |
| Mar 7, 1927, 9:27 AM UTC | SW. Honshu Island | 7.6 | 11.3 m | 3,022 | 9 |
| Sep 2, 1923, 2:46 AM UTC | Ryukyu Islands | 7.7 | 0.30 m | — | 6 |
| Sep 1, 1923, 2:58 AM UTC | Sagami Bay | 7.9 | 13.0 m | 105,385 | 118 |
| Jun 1, 1923, 5:24 PM UTC | Kashima, Japan | 7.3 | 0.40 m | — | 1 |
| Nov 1, 1915, 7:23 AM UTC | Sanriku | 7.8 | 1.00 m | — | 3 |
| Jun 15, 1911, 2:26 PM UTC | Ryukyu Islands | 8.0 | — | 12 | 2 |
| Aug 14, 1909, 6:30 AM UTC | Anegawa, Japan | 6.9 | 1.80 m | 41 | 1 |
| Mar 13, 1909, 2:29 PM UTC | Off Boso Peninsula | 7.5 | — | — | 1 |
| Aug 9, 1901, 6:33 PM UTC | Off Northeast Coast Honshu | 7.4 | 0.25 m | 18 | 2 |
| Aug 9, 1901, 9:23 AM UTC | Off Northeast Coast Honshu | 7.2 | 0.60 m | — | 3 |
| Jun 24, 1901 | Ryukyu Islands | 7.5 | 0.25 m | — | 4 |
| Nov 24, 1899, 6:43 PM UTC | Seikaido | 7.1 | 0.30 m | — | 1 |
| Apr 22, 1898, 11:37 PM UTC | Honshu Island | 7.2 | 0.10 m | — | 2 |
| Aug 5, 1897, 12:10 AM UTC | Sanriku | 7.7 | 3.60 m | — | 34 |
| Feb 19, 1897, 8:50 PM UTC | Sanriku | 7.4 | 1.00 m | — | 2 |
| Jun 15, 1896, 10:33 AM UTC | Sanriku | 8.3 | 38.2 m | 27,122 | 72 |
| Jan 9, 1896 | Kashima, Japan | 7.6 | 0.25 m | — | 6 |
| Oct 22, 1894, 8:35 AM UTC | Yamagata, Japan | 7.0 | — | 726 | — |
| Mar 22, 1894, 10:23 AM UTC | SE. Hokkaido Island | 7.9 | 4.00 m | 1 | 19 |
| Dec 9, 1892 | SW. Honshu Island | 6.5 | — | 1 | 2 |
| Mar 14, 1872, 8:20 AM UTC | SW. Honshu Island | 7.4 | 3.00 m | 804 | 11 |
| Oct 20, 1861, 5:30 PM UTC | Off Miyagi | 7.4 | 3.90 m | — | 2 |
| Aug 23, 1856, 4:30 AM UTC | SE. Hokkaido Island | 8.0 | 6.00 m | 26 | 31 |
| Nov 11, 1855 | Tokaido | 7.0 | — | 6,757 | 2 |
| Nov 7, 1855 | Enshunada | 7.0 | 3.00 m | — | 5 |
| Dec 24, 1854, 8:00 AM UTC | Nankaido | 8.4 | 28.0 m | 3,000 | 76 |
| Dec 23, 1854, 12:46 AM UTC | Enshunada Sea | 8.3 | 21.0 m | 1,000 | 70 |
| March 1846 | Sanriku | 6.9 | 2.00 m | — | 2 |
| Apr 25, 1843 | SE. Hokkaido Island | 8.4 | 4.50 m | 45 | 8 |
| Jul 20, 1835 | Sanriku | 7.6 | 5.00 m | many (about 101–1,000) | 4 |
| Dec 7, 1833 | NW. Honshu Island | 7.4 | 9.00 m | 85 | 23 |
| Sep 25, 1810 | NW. Honshu Island | 6.6 | 1.00 m | 57 | 1 |
| Aug 8, 1808 | E. Awa, Tokushima Prefecture | 6.5 | 1.50 m | — | 1 |
| Jul 10, 1804, 1:00 PM UTC | NW. Honshu Island | 7.3 | 1.00 m | 450 | 2 |
| Dec 9, 1802, 5:00 AM UTC | NW. Honshu Island | 6.6 | — | 19 | 1 |
| Feb 17, 1793 | Sanriku | 8.3 | 4.50 m | 745 | 8 |
| Feb 8, 1793, 3:00 AM UTC | W. Off Aomori | 6.9 | 1.80 m | 12 | 2 |
| Jun 13, 1792 | W. Hokkaido Island | 6.9 | — | some (about 51–100) | 5 |
| May 21, 1792 | Shimabara Bay, Kyushu Island | 6.4 | 55.0 m | 15,000 | 24 |
| Aug 22, 1782 | Odawara, Sagami Bay | 7.3 | — | many (about 101–1,000) | 3 |
| Apr 11, 1781 | SW. Kyushu Island | — | — | 38 | 1 |
| Sep 9, 1780 | SW. Kyushu Island | — | 6.00 m | — | 2 |
| Apr 24, 1771 | Ryukyu Islands | 7.4 | 85.4 m | 13,486 | 17 |
| Aug 29, 1769 | SW. Kyushu Island | 7.4 | 2.50 m | — | 5 |
| Jul 22, 1768 | Ryukyu Islands | 6.5 | 1.20 m | — | 1 |
| Mar 8, 1766 | Sanriku | 6.9 | — | 1,700 | 3 |
| Mar 15, 1763 | Sanriku, Hachionhe | 7.1 | — | many (about 101–1,000) | 1 |
| Mar 11, 1763 | N. Sanriku | 7.8 | — | — | 1 |
| May 20, 1751 | NW. Honshu Island | 6.6 | — | 2,100 | 1 |
| Aug 29, 1741 | W. Hokkaido Island | 6.9 | 90.0 m | 2,000 | 63 |
| Dec 20, 1711 | Seionaikai, Japan | 6.7 | 2.00 m | 1,000 | 1 |
| Feb 13, 1708 | Tokaido | 7.0 | — | — | 4 |
| Oct 28, 1707, 4:00 AM UTC | Enshunada | 8.4 | 11.0 m | 2,000 | 2 |
| Oct 28, 1707, 5:00 AM UTC | Nankaido | 8.4 | 25.7 m | 5,000 | 29 |
| Dec 30, 1703, 5:00 PM UTC | Off SW Boso Peninsula | 8.2 | 11.7 m | 5,233 | 46 |
| Nov 4, 1677 | Off SE. Boso Peninsula | 7.4 | 8.00 m | 500 | 23 |
| Apr 13, 1677 | Sanriku | 8.1 | 6.00 m | few (up to about 50) | 4 |
| Dec 17, 1670 | Boso, Japan | 6.4 | 2.00 m | — | — |
| Oct 30, 1662, 2:00 PM UTC | Hiuganada | 7.9 | 5.00 m | 200 | 6 |
| Oct 18, 1644 | Honjo, Akita | 6.9 | — | 117 | 1 |
| Jul 31, 1640 | SE. Hokkaido Island | 6.5 | 8.00 m | 700 | 3 |
| Mar 1, 1633 | Sagami Bay | 7.1 | — | 150 | 3 |
| Sep 9, 1616 | Miyagi Prefecture | 7.0 | — | many (about 101–1,000) | 3 |
| Nov 26, 1614 | Niigata Prefecture | 7.7 | — | many (about 101–1,000) | 1 |
| Dec 2, 1611 | Sanriku | 8.1 | 25.0 m | 5,000 | 11 |
| Feb 3, 1605 | Enshunada | 7.9 | — | 1,001 | 7 |
| Feb 3, 1605 | Nankaido | 7.9 | 10.0 m | 5,000 | 10 |
| Feb 8, 1602 | Boso, Japan | 7.2 | — | many (about 101–1,000) | 2 |
| Sep 4, 1596 | Beppu Bay, Kyushu | 6.9 | 8.00 m | 708 | 6 |
| Mar 21, 1589 | Suruga, Japan | 6.7 | — | many (about 101–1,000) | 3 |
| Jan 18, 1586 | Ise Bay | 8.2 | — | 8,000 | 4 |
| March 1520 | Kii, Kumananonada | 7.0 | 2.00 m | — | 1 |
| August 1510 | Osaka Bay | 6.7 | 2.00 m | — | 1 |
| August 1498 | Nankaido | 7.5 | — | — | 1 |
| August 1498 | Enshunada Sea | 8.3 | 10.0 m | 5,000 | 6 |
| August 1495 | Kamakura, Sagami Bay, Tokaido | 7.1 | 5.00 m | 200 | 2 |
| October 1433 | Off Izu-Oshima | 7.1 | 2.00 m | many (about 101–1,000) | 1 |
| December 1407 | Kumanonada | 7.0 | 2.00 m | — | 2 |
| November 1403 | Kumanonada | 7.0 | 2.00 m | — | 2 |
| July 1361 | Nankaido | 8.4 | — | 660 | 6 |
| October 1360 | Kumanonada | 7.0 | — | many (about 101–1,000) | 3 |
| July 1331 | Off Tanabe, Wakayama Prefecture | 7.0 | — | — | — |
| September 1257 | Sagami Bay, Japan | 7.0 | — | — | 3 |
| September 1257 | Off Sanriku | 7.5 | — | — | 1 |
| April 1241 | Kamakura, Sagami Bay | 7.0 | — | — | 2 |
| January 1099 | Nankaido | 8.4 | — | — | 1 |
| November 1096 | Enshunada | 8.4 | 7.00 m | — | 5 |
| May 1088 | Miyako, Iwate Prefecture | 7.0 | — | — | 1 |
| 922 | Kumanonada | 7.0 | 2.00 m | — | 1 |
| 887 | Nankaido | 8.6 | — | many (about 101–1,000) | 2 |
| 869 | Sanriku | 8.6 | — | 1,000 | 5 |
| 863 | NW. Honshu Island | 7.0 | — | many (about 101–1,000) | 1 |
| 850 | NW. Honshu Island | 7.0 | — | many (about 101–1,000) | 1 |
| 818 | Tokaido | 7.9 | — | many (about 101–1,000) | 1 |
| 744 | SW. Kyushu Island | 6.4 | — | 1,520 | 1 |
| 704 | Kumanonada | 7.0 | — | — | — |
| 701 | Sea of Japan | 7.0 | — | — | 1 |
| 684 | Nankaido | 8.4 | 3.00 m | many (about 101–1,000) | 2 |
Source: NOAA National Centers for Environmental Information (NCEI), Global Historical Tsunami Database. Confirmed events only. Deaths and damage are database estimates; older records are incomplete. Water heights come from different types of observation.