Kilauea volcano (Hawai'i): recent magma inflation lifts caldera by up to 18 cm

Fri, 3 Sep 2021, 14:50
14:50 PM | BY: T
Radar-measured changes of the ground elevation between Aug 19, and Sep 1, 2021, calculated by the difference between two radar images taken by the Italian COSMO-SkyMed satellite on these dates. Each colored ring cycle corresponds to a vertical movement of the surface of 1.55 cm (image: HVO / USGS)
Radar-measured changes of the ground elevation between Aug 19, and Sep 1, 2021, calculated by the difference between two radar images taken by the Italian COSMO-SkyMed satellite on these dates. Each colored ring cycle corresponds to a vertical movement of the surface of 1.55 cm (image: HVO / USGS)
New satellite data shows that the summit of the caldera has uplifted by up as much as 18 cm during the recent earthquake swarms, which supports the interpretation that they had been caused by pulses of magma that intruded at shallow depth, thus causing the inflation of the ground above.
The inflation continues at slow rate while earthquake rates are back to normal levels, suggesting that the volcano-tectonic events have come to (at least a temporary) end.

Previous news

Sun, 29 Aug 2021, 21:08
Halema‘uma‘u from the western crater rim on 13 August (image: HVO)
The intrusive activity that began on 23 August continues south of Kilauea caldera. ... Read all
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