# Ora Caldera

- **Country:** Italy
- **Coordinates:** 46.346870, 11.297470
- **Age:** 274 Ma
- **Type:** Caldera
- **Country:** Italy
- **Geology:** Rhyolite
- **Orogeny:** Alps
- **Area Km2:** 1680
- **Width Km:** 42
- **Formed By:** Trans-tensional
- **Length Km:** 40
- **Elevation M:** 234
- **Last Eruption:** 274 Ma
- **Volcanic Belt:** Athesian Volcanic Group

The Ora Caldera is an extinct Permian supervolcano in the Southern Alps of northern Italy. This and caldera was formed by a supereruption 277–274 million years ago that produced more than of rhyodacitic-rhyolitic ignimbrite. The ignimbrite from this eruption forms the Ora Formation, which represents the youngest eruptive unit of the Athesian Volcanic Group.

**Source:** https://en.wikipedia.org/wiki/Ora_Caldera (Wikipedia, CC BY-SA)