French volcanologist Katia Krafft observes blocky ejecta from the 1977 eruptions that formed Ukinrek Maars. The 10-day-long eruption produced two new maars, 170-m-wide West Maar and 300-m-wide East Maar. Phreatomagmatic explosions formed an ejecta blanket of ash and blocks that surrounded the new vents.

Copyrighted photo by Katia and Maurice Krafft, 1978.

Copyrighted image used with permission. All Rights Reserved. Contact photographer for any usage requests.

Ukinrek Maars