June 1, 1231 Earthquake: S. Germano, Montecassino, Italy
An earthquake struck S. Germano, Montecassino, Italy on June 1, 1231.
Map
Where it struck, with the other significant earthquakes within 200 km. Circles are sized and colored by magnitude; select one for its page.
The earthquake
- Date
- June 1, 1231
- Place
- S. Germano, Montecassino, Italy
- Intensity
- 10 on the Modified Mercalli scale
- Tsunami
- None recorded
- Epicenter
- 41.500° N, 13.800° E
- Country
- Italy
The toll
- Damage
- Moderate (about $1 to $5 million)
- Houses destroyed
- Some (about 51 to 100)
Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.
What the record says
NCEI’s account, from the sources it cites.
1231, June 1, ~14. Montecassino, 41o30'N, 13o48'E, intensity VIII. (reference #1075)
1231, June 1, about noon. Monastery of St. Germain. The earthquake extended from Capua to Rome. The shocks continued at intervals for more than a month afterwards. The fountains were troubled, and the water remained salt for two hours, and exhaled a fetid odor. (reference #521)
1231, June 1. Italy, S. Germano, Monteccassino in (Latiura), felt at Capua and in (Molise). Intensity III which corresponds to an earthquake which destroyed towns and devastated districts. (reference #1055)
1231, June 1. Intensity X- X 1/2. Earthquake at Monte Cassino and S. Germano. In Rome: Violent Shaking and troubled sources for a month. (reference #1093)
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- January 14, 1703, Central Apennino, Norcia, L'Aquila, Perugia, Italy
- December 5, 1456, Avellino,napoli,abruzzi, Brindisi,benevento, Italy
- January 13, 1915, Marsica, Avezzano, Abruzzi, Italy
- February 2, 1703, L'Aquila (Aquila), Italy
- 1248, Sabaudia, Italy
- July 26, 1805, Molise, Rosolone, Napoli (Naples), Isernia, Italy
- July 30, 1627, Lesina, Italy
- December 1, 1328, Norcia, Italy
- November 23, 1980, Avellino, Potenza, Caserta, Naples, Italy
- September 8, 1694, Calitri, Italy
- December 16, 1631, Naples (Napoli), Italy
- March 20, 1731, Foggia, Italy
- June 5, 1688, Benevento, Italy
- July 28, 1883, Casamicciola, Forino, Lacco Ameno, Ischia Is, Italy
- August 24, 79, Naples (Napoli), Italy
More
Significant earthquakes of 1231The 1200sRecent earthquakes near hereThis day in weather history
Sources
Significant earthquakes from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. NCEI earthquake 457.