# Tao-Rusyr Caldera

- **Country:** Russia
- **Coordinates:** 49.350000, 154.700000
- **Type:** Stratovolcano / Caldera
- **Listing:** Ribu
- **Location:** Onekotan, Kuril Islands, Russia
- **Elevation M:** 1325
- **Prominence M:** 1325
- **Last Eruption:** November 1952

Tao-Rusyr Caldera is a stratovolcano located at the southern end of Onekotan Island, Kuril Islands, Russia. It has 7.5 km wide caldera formed during a catastrophic eruption less than 10,000 years ago (reported ages range from 5,550 to 9,400 Before Present). The waters of Kol'tsevoe Lake (, Ring Lake) fill the caldera, along with a large symmetrical andesitic cone, Krenitsyn Peak (; Japanese 黒石山; Kuroishiyama), that rises as an island within the lake. This volcano was named after Captain Pyotr Krenitsyn of the Imperial Russian Navy.

![Photo of Tao-Rusyr Caldera](https://upload.wikimedia.org/wikipedia/commons/9/9c/OnekotanIslandNASA.jpg)

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