Yamagata

Earthquakes near Yamagata, 1927–2026

From 1927 to October 19, 2026, USGS recorded 24 earthquakes of magnitude 6 or more within 100 km of Yamagata, or 200 km for magnitude 7 and above. One stands far above the rest: a magnitude 9.1 on March 11, 2011 (2011 Great Tohoku Earthquake, Japan). The next strongest reached 7.7.

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The last 30 days · as of

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

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What the record holds

It was also the deadliest: NOAA records 18,423 deaths for it. 23 earthquakes here in these years are on NOAA’s list of significant earthquakes. NOAA records deaths in 12 of the events here, 18,527 in all. The latest on NOAA’s list is a magnitude 7.3 on March 16, 2022 (57 km ENE of Namie, Japan). NOAA lists 2 tsunamis that began within 100 km of Yamagata, and 11 from elsewhere that reached it with deaths or a metre of water or more. The highest water NOAA records here was 36.41 m, on March 11, 2011. The deadliest here came on March 11, 2011 from a magnitude 9.1 earthquake (Honshu Island): NOAA’s runup records count 9,044 deaths within 100 km of Yamagata. NOAA lists 3 significant eruptions of 3 volcanoes within 100 km of Yamagata. The deadliest was Bandaisan on May 9, 1938, which killed 2 people by NOAA’s count.

The events

  • March 16, 2022Earthquake · M 7.357 km ENE of Namie, Japan · 4 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
  • March 11, 2011Earthquake · M 9.12011 Great Tohoku Earthquake, Japan · 18,423 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
  • March 11, 2011Tsunami · 36.41 m hereHonshu Island · 9,044 deaths here (NOAA)NOAA NCEI · Wikipedia
  • November 6, 1938Earthquake · M 7.7116 km E of Namie, JapanUSGS · NOAA NCEI
  • May 9, 1938EruptionBandaisan · 2 deaths (NOAA)NOAA NCEI · Wikipedia

Good to know

  • An event counts for Yamagata 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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