Join Donate

The Bruce Murray Space Image Library

Eruption at Tvashtar Catena, Io

Eruption at Tvashtar Catena, Io


Eruption at Tvashtar Catena, Io
The Galileo spacecraft caught Io in the act of an active volcanic eruption on Februrary 22, 2000. Tvashtar Catena is a chain of calderas, collapse pits formed by volcanic eruptions. The active site of the eruption is visible on the left edge of the image, where infrared imaging sees the glow of a hot lava flow more than 60 kilometers long.

This picture is about 250 kilometers across. North is toward the top and illumination from the Sun is from the west (left).

Most NASA images are in the public domain. Reuse of this image is governed by NASA's image use policy.

Original image data dated on or about February 22, 2000

Explore related images: Jupiter's moons, BMSIL, Io, pretty pictures, Galileo

You are here:
Comments & Sharing
More Images
Bill Nye and people
Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Today

Bruce Murray and Carl Sagan
Pretty Pictures

Support the Bruce Murray Space Image Library and help us share the wonders of other worlds.


"We're changing the world. Are you in?"
- CEO Bill Nye

I'm In!