Arezzo

Earthquakes near Arezzo through history

From 1900 to October 19, 2026, USGS recorded 2 earthquakes of magnitude 6 or more within 100 km of Arezzo, or 200 km for magnitude 7 and above. None reached magnitude 7: the strongest was a magnitude 6.2, twice: on April 30, 1279 (Forli, Spoleto, Romagna, Marche, Bologna) and on June 29, 1919 (1 km NNW of Vicchio, Italy).

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The last 30 days · as of

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

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What the record holds

The deadliest was not the strongest: an earthquake on December 25, 1352 (Sansepolcro), for which NOAA records 2,000 deaths. NOAA’s list of significant earthquakes has 39 here, back to 1279. NOAA records deaths in 9 of the events here, 4,472 in all. The latest on NOAA’s list is a magnitude 4.7 on January 26, 2003 (Spinello, Santa Sofia, Bagno Di Romagna). NOAA’s record here begins on April 30, 1279 with an earthquake (Forli, Spoleto, Romagna, Marche, Bologna). 29 of the 39 significant earthquakes NOAA lists here came before 1927. NOAA lists 5 tsunamis that began within 100 km of Arezzo.

The events

  • January 26, 2003Earthquake · M 4.7Spinello, Santa Sofia, Bagno Di RomagnaNOAA NCEI
  • June 29, 1919Earthquake · M 6.21 km NNW of Vicchio, ItalyUSGS · NOAA NCEI
  • April 22, 1661TsunamiGulf Of VeniceNOAA NCEI
  • December 25, 1352EarthquakeSansepolcro · 2,000 deaths (NOAA)NOAA NCEI
  • April 30, 1279Earthquake · M 6.2 (est.)Forli, Spoleto, Romagna, Marche, BolognaNOAA NCEI

Good to know

  • An event counts for Arezzo 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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