Valtiberina is a valley crossed by the upper course of the

Tiber The Tiber ( ; it, Tevere ; la, Tiberis) is the third-longest river in Italy and the longest in Central Italy, rising in the Apennine Mountains in Emilia-Romagna and flowing through Tuscany, Umbria, and Lazio, where it is joined by the ...

(which originates from Monte Fumaiolo in

Emilia-Romagna egl, Emigliàn (man) egl, Emiglièna (woman) rgn, Rumagnòl (man) rgn, Rumagnòla (woman) it, Emiliano (man) it, Emiliana (woman) or it, Romagnolo (man) it, Romagnola (woman) , population_note = , population_blank1_title ...

), unfolding between

Tuscany it, Toscano (man) it, Toscana (woman) , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = Citizenship , demographics1_footnotes = , demographics1_title1 = Italian , demogra ...

Umbria it, Umbro (man) it, Umbra (woman) , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = , demographics1_footnotes = , demographics1_title1 = , demographics1_info1 = , ...

and

Romagna Romagna ( rgn, Rumâgna) is an Italian historical region that approximately corresponds to the south-eastern portion of present-day Emilia-Romagna, North Italy. Traditionally, it is limited by the Apennines to the south-west, the Adriatic to t ...

, parallel to the

Casentino The Casentino is the valley in which the first tract of the river Arno flows to Subbiano, Italy. It is one of the four valleys (alongside Valdarno, Valdichiana, and Valtiberina) in which the Province of Arezzo is divided. Mount Falterona, fr ...

Geography

Valtiberina is bordered to the west by Alpe di Catenaia and to the east by Alpe della Luna. The description of the valley made between the 1st and 2nd centuries AD is very famous. by

Pliny the Younger Gaius Plinius Caecilius Secundus, born Gaius Caecilius or Gaius Caecilius Cilo (61 – c. 113), better known as Pliny the Younger (), was a lawyer, author, and magistrate of Ancient Rome. Pliny's uncle, Pliny the Elder, helped raise and educa ...

(61-113) in a letter written to his friend Apollinare. Pliny had his favorite villa in Valtiberina and thus describes the landscape: In recent times, the scholar Mariella Zoppi wrote:

Seismicity

Historically, Valtiberina has a medium-high level of seismicity. Among the earthquakes of the past, the strongest with ML between 5 and 6 were those of 1352–1353, 1358, 1389, 1458, 1558, 1694, 1781, 1789, 1917, of 1948, known as the

Sansepolcro Sansepolcro, formerly Borgo Santo Sepolcro, is a town and '' comune'' founded in the 11th century, located in the Italian Province of Arezzo in the eastern part of the region of Tuscany. Situated on the upper reaches of the Tiber river, the town ...

earthquake. More recently, there have been tremors in 1997 and 2001 with ML slightly higher than 4. In 1997, the shock of 2 October had its epicenter in Sansepolcro. According to legislative provision 3274 of 20 March 2003, the Valtiberina area has been classified as having medium seismic intensity, that is, among those areas in which seismic events, albeit of lesser intensity, can create very serious damage.

Climate

The climatic classification (ex DPR 412 of 26 August 1993) includes the Valtiberina among the areas of Italy in which it is possible to use natural gas heating in buildings from 15 October to 15 April for 14 hours a day.

References

{{reflist Valleys of Tuscany Valleys of Umbria