November 16-December 2, 2022— Mauna Loa Ground Surface Change
This map shows areas of surface change as determined through a comparison of satellite radar images acquired on November 16, 2022 and December 2 at 6:13 a.m. HST. Bluish colors show areas of major change and indicate lava flows that were active during the time spanned. Pink and yellow colors show areas of no surface change. The image depicts lava flow activity in the SW summit region, within Mokuʻāweoweo (Mauna Loa’s summit caldera), and along the NE Rift Zone, where the eruption has localized at Fissure 3. Though the SW activity appears to have occurred outside of Mokuʻāweoweo, the structural definition of Mauna Loa's summit region is larger than the main topographic caldera and is approximated by the dashed white line. These data will be used by HVO geologists to precisely map the areas covered by lava flows during the first few days of the eruption, since they provide high-resolution and comprehensive views that are not available from other data. Stay tuned for the forthcoming HVO map! Data are from the COSMO-SkyMed constellation of radar satellites, provided by the Italian Space Agency (Agenzia Spaziale Italiana) through the Hawaiʻi Supersite.