Reykjanes volcano update: new analysis reveals extent and volume of lava flow

Aerial insight into cinder cones within the eruptive fissure (image:IMO)

Aerial insight into cinder cones within the eruptive fissure (image:IMO)

No significant change in the activity has occurred during the past 24 hours and hence the eruption persists at well-balanced levels.

The constant spattering from the chain of seven-to-eight cinder cones, the so-called spatter rampart, continues to feed and keep the southern lava flow active.
Yesterday morning, scientists from the Institute of Natural History and Land Survey of Iceland made a reconnaissance flight over the eruption site to analyze the lava flow. The area covered by lava flows is estimated to be about 5.58 km2 with a volume of about nearly 21 million m3. The attached map depicts the extent and thickness (mean 16 m; the closer to the craters, the thicker the lava layers) of the lava as of yesterday.

The estimated discharge rate of magma during 17-20 March was approx. 14.5 m3/s. The supply rate is highly comparable to the 2021-2023 Fagradalsfjall eruptions.

Source: Icelandic Met Office volcano activity update 21 March 2024

The attached map depicts the extent and thickness (image: IMO)

The attached map depicts the extent and thickness (image: IMO)