Ōita

Earthquakes near Ōita through history

From 1900 to October 19, 2026, USGS recorded 23 earthquakes of magnitude 6 or more within 100 km of Ōita, or 200 km for magnitude 7 and above. 10 of them reached magnitude 7 or more; the strongest was a magnitude 8 on November 18, 1941 (1941 Hyuganada Earthquake).

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The last 30 days · as of

USGS recorded no earthquake of magnitude 4.5 or more within 100 km of Ōita in the last 30 days.

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What the record holds

The deadliest was not the strongest: an estimated magnitude 7.5 on June 16, 1026 (Off Masuda, Shimane Prefecture), for which NOAA records 1,001 deaths. NOAA’s list of significant earthquakes has 26 here, back to AD 744. NOAA records deaths in 27 of the events here, 4,640 in all. The latest on NOAA’s list is a magnitude 7.1 on August 8, 2024 (2024 Hyuganada Sea, Japan Earthquake). NOAA’s record here begins on June 30, 744 with a tsunami (Sw. Kyushu Island). It grows thinner going back: 14 of the 26 significant earthquakes NOAA lists here are from 1927 on. NOAA lists 6 tsunamis that began within 100 km of Ōita, and 8 from elsewhere that reached it with deaths or a metre of water or more. The highest water NOAA records here was 8 m, on September 4, 1596. The deadliest here came on June 30, 744 from a magnitude 6.4 earthquake (Sw. Kyushu Island): NOAA’s runup records count 1,520 deaths within 100 km of Ōita. NOAA lists 16 significant eruptions of one volcano within 100 km of Ōita. The largest was Asosan in December 1872, at 3 on the volcanic explosivity index. It killed 4 people by NOAA’s count.

The events

  • August 8, 2024Earthquake · M 7.12024 Hyuganada Sea, Japan EarthquakeUSGS · NOAA NCEI · Wikipedia
  • November 18, 1941Earthquake · M 8.01941 Hyuganada Earthquake · 2 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
  • November 2, 1931Earthquake · M 7.958 km ESE of Takanabe, Japan · one death (NOAA)USGS · NOAA NCEI
  • December 1872Eruption · VEI 3Asosan · 4 deaths (NOAA)NOAA NCEI · Wikipedia
  • September 4, 1596Tsunami · 8 m hereBeppu Bay, Kyushu · 708 deaths here (NOAA)NOAA NCEI · Wikipedia
  • June 16, 1026Earthquake · M 7.5 (est.)Off Masuda, Shimane Prefecture · 1,001 deaths (NOAA)NOAA NCEI · Wikipedia
  • June 30, 744TsunamiSw. Kyushu Island · 1,520 deaths here (NOAA)NOAA NCEI

Good to know

  • An event counts for Ōita when it began within 100 km of its centre, or 200 km for an earthquake of magnitude 7 or more. Damage can reach further.
  • USGS counts here start at magnitude 6: the catalogue’s smaller quakes thin out going back, where few instruments listened.
  • NOAA lists significant events only: earthquakes that killed, did about $1 million of damage, reached magnitude 7.5 or intensity X, or raised a tsunami, and eruptions and tsunamis by like measures. Magnitudes before 1900 are its estimates from written accounts.
  • Deaths are NOAA’s total for each event, wherever people died, its tsunami and fires included. A tsunami counts the dead its runup records give for this place: NOAA’s total for a tsunami includes its source quake’s.
  • A tsunami from elsewhere counts where one of its runups killed or rose a metre or more.
  • Counted to October 19, 2026, as is the map. The last 30 days ask USGS again.

How the layers work, where their data comes from and what they can’t tell you: Earthquakes, live, The world through history

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