Kushiro

Earthquakes near Kushiro, 1927–2026

From 1927 to October 19, 2026, USGS recorded 40 earthquakes of magnitude 6 or more within 100 km of Kushiro, or 200 km for magnitude 7 and above. 12 of them reached magnitude 7 or more; the strongest was a magnitude 8.2 on September 25, 2003 (2003 Tokachi-Oki Earthquake).

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The last 30 days · as of

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

The latest: magnitude 4.5 on October 12 (53 km S of Kushiro, Japan).

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What the record holds

The deadliest was not the strongest: a magnitude 8.1 on March 4, 1952 (1952 Tokachi-Oki Earthquake), for which NOAA records 33 deaths. 12 earthquakes here in these years are on NOAA’s list of significant earthquakes. NOAA records deaths in 5 of the events here, 65 in all. The ten years with the most magnitude 6+ earthquakes were 1997–2006, with 12 of the 40. The latest on NOAA’s list is a magnitude 6.8 on December 6, 2004 (54 km SSW of Nemuro, Japan). NOAA lists 3 tsunamis that began within 100 km of Kushiro, and 11 from elsewhere that reached it with deaths or a metre of water or more. The highest water NOAA records here was 6.54 m, on March 4, 1952. The deadliest here came on September 25, 2003 from a magnitude 8.3 earthquake (Hokkaido Island): NOAA’s runup records count 2 deaths within 100 km of Kushiro.

The events

  • December 6, 2004Earthquake · M 6.854 km SSW of Nemuro, JapanUSGS · NOAA NCEI
  • September 25, 2003Earthquake · M 8.22003 Tokachi-Oki Earthquake · 2 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
  • September 25, 2003Tsunami · 4.4 m hereHokkaido Island · 2 deaths here (NOAA)NOAA NCEI · Wikipedia
  • March 4, 1952Earthquake · M 8.11952 Tokachi-Oki Earthquake · 33 deaths (NOAA)USGS · NOAA NCEI
  • March 4, 1952Tsunami · 6.54 m hereSe. Hokkaido IslandNOAA NCEI

Good to know

  • An event counts for Kushiro 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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