Earthquakes near Comitán through history

The deadliest was not the strongest: a magnitude 7.5 on April 19, 1902 (Near Quetzaltenango, Guatemala), for which NOAA records 2,000 deaths. NOAA’s list of significant earthquakes has 7 here, back to 1816. NOAA records deaths in 3 of the events here, 44 in all. The latest on NOAA’s list is a magnitude 7.2 on September 10, 1993 (24 km W of Puerto Madero, Mexico). NOAA’s record here begins on July 22, 1816 with an earthquake (Soloma). 4 of the 7 significant earthquakes NOAA lists here came before 1927.

• September 10, 1993Earthquake · M 7.224 km W of Puerto Madero, Mexico · one death (NOAA)USGS · NOAA NCEI
• September 23, 1902Earthquake · M 7.8Central Chiapas, MexicoUSGS · NOAA NCEI · Wikipedia
• April 19, 1902Earthquake · M 7.5Near Quetzaltenango, Guatemala · 2,000 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
• July 22, 1816Earthquake · M 7.5 (est.)Soloma · 23 deaths (NOAA)NOAA NCEI · Wikipedia

• An event counts for Comitán 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