Earthquakes near Silchar through history

The deadliest was not the strongest: a magnitude 6 on December 30, 1984 (20 km SW of Lakhipur, India), for which NOAA records 20 deaths. NOAA’s list of significant earthquakes has 9 here, back to 1846. NOAA records deaths in 3 of the events here, 35 in all. The latest on NOAA’s list is a magnitude 6.7 on January 3, 2016 (Impahl). NOAA’s record here begins on December 10, 1846 with an earthquake. 4 of the 9 significant earthquakes NOAA lists here came before 1927.

• January 3, 2016Earthquake · M 6.7Impahl · 13 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
• December 30, 1984Earthquake · M 6.020 km SW of Lakhipur, India · 20 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
• February 4, 1961Earthquake · M 7.6NOAA NCEI
• July 8, 1918Earthquake · M 7.124 km N of Kishorganj, BangladeshUSGS · NOAA NCEI
• December 10, 1846Earthquake · M 7.5 (est.)NOAA NCEI

• An event counts for Silchar 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