Chattogram

Earthquakes near Chattogram through history

From 1900 to October 19, 2026, USGS recorded one earthquake of magnitude 6 or more within 100 km of Chattogram, or 200 km for magnitude 7 and above. None reached magnitude 7: the strongest was a magnitude 6.1 on November 21, 1997 (42 km SW of Saiha, India).

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The last 30 days · as of

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

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What the record holds

The deadliest was not the strongest: an earthquake on April 2, 1762 (Chittagong, Dacca, Arracan), for which NOAA records 200 deaths. NOAA’s list of significant earthquakes has 7 here, back to 1762. NOAA records deaths in 4 of the events here, 231 in all. The latest on NOAA’s list is a magnitude 5 on January 12, 2008 (Rangamati, Bangladesh). NOAA’s record here begins on April 2, 1762 with an earthquake (Chittagong, Dacca, Arracan). It grows thinner going back: 6 of the 7 significant earthquakes NOAA lists here are from 1927 on. NOAA lists one tsunami that began within 100 km of Chattogram, and one from elsewhere that reached it with deaths or a metre of water or more. The highest water NOAA records here was 2.4 m, on December 26, 2004.

The events

  • January 12, 2008Earthquake · M 5.0Rangamati, BangladeshNOAA NCEI
  • December 26, 2004Tsunami · 2.4 m hereOff W. Coast Of SumatraNOAA NCEI · Wikipedia
  • July 26, 2003Earthquake · M 5.7Rangamati · 2 deaths (NOAA)NOAA NCEI
  • November 21, 1997Earthquake · M 6.142 km SW of Saiha, India · 23 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
  • April 2, 1762EarthquakeChittagong, Dacca, Arracan · 200 deaths (NOAA)NOAA NCEI · Wikipedia

Good to know

  • An event counts for Chattogram 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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