Ueda

Earthquakes near Ueda through history

From 1900 to October 19, 2026, USGS recorded 8 earthquakes of magnitude 6 or more within 100 km of Ueda, or 200 km for magnitude 7 and above. 3 of them reached magnitude 7 or more; the strongest on either list was an estimated magnitude 8.4 on October 27, 1891 (Mino-Owari).

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The last 30 days · as of

USGS recorded one earthquake of magnitude 4.5 or more within 100 km of Ueda in the last 30 days.

The latest: magnitude 4.6 on October 7 (9 km NNE of Midori, Japan).

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What the record holds

The deadliest was not the strongest: a magnitude 8 on September 1, 1923 (Tokyo, Yokohama), for which NOAA records 105,385 deaths. NOAA’s list of significant earthquakes has 27 here, back to AD 745. NOAA records deaths in 41 of the events here, 162,432 in all. The latest on NOAA’s list is a magnitude 7.5 on January 1, 2024 (2024 Noto Peninsula, Japan Earthquake). NOAA’s record here begins on June 5, 745 with an earthquake (Mino). 23 of the 27 significant earthquakes NOAA lists here came before 1927. NOAA lists 3 tsunamis that began within 100 km of Ueda, and 6 from elsewhere that reached it with deaths or a metre of water or more. The highest water NOAA records here was 7.23 m, on January 1, 2024. The deadliest, on May 20, 1751, killed 2,100 people here by NOAA’s runup records. NOAA lists 32 significant eruptions of 7 volcanoes within 100 km of Ueda. The largest was Asamayama on August 5, 1783, at 4 on the volcanic explosivity index. It killed 1,491 people by NOAA’s count.

The events

Good to know

  • An event counts for Ueda 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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