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Delineating the Pierre Shale from geophysical surveys east and southeast of Ellsworth Air Force Base, South Dakota, 2021 Delineating the Pierre Shale from geophysical surveys east and southeast of Ellsworth Air Force Base, South Dakota, 2021
The U.S. Geological Survey, in cooperation with the U.S. Air Force Civil Engineer Center, used surface-geophysical methods to delineate the top of Cretaceous Pierre Shale along survey transects in selected areas east and southeast of Ellsworth Air Force Base, South Dakota, from April to September 2021. Two complementary geophysical methods—electrical resistivity and passive seismic—were...
December 12, 2022 — Mauna Loa Eruption Map December 12, 2022 — Mauna Loa Eruption Map
This reference map depicts the ongoing Mauna Loa eruption on Dec. 12, 2022.
December 11, 2022 — Mauna Loa Eruption Map December 11, 2022 — Mauna Loa Eruption Map
This reference map depicts the ongoing Mauna Loa eruption on Dec. 11, 2022.
December 10, 2022 — Mauna Loa Eruption Map December 10, 2022 — Mauna Loa Eruption Map
This reference map depicts the ongoing Mauna Loa eruption on Dec. 10, 2022
December 9, 2022 — Mauna Loa Eruption Map December 9, 2022 — Mauna Loa Eruption Map
This reference map depicts the ongoing Mauna Loa eruption on Dec. 9, 2022.
December 8, 2022 — Mauna Loa Eruption Map December 8, 2022 — Mauna Loa Eruption Map
This reference map depicts the ongoing Mauna Loa eruption on Dec. 8, 2022.
December 7, 2022 — Mauna Loa Eruption Map December 7, 2022 — Mauna Loa Eruption Map
This reference map depicts the ongoing Mauna Loa eruption on Dec. 7, 2022.
December 7, 2022 — Mauna Loa Northeast Rift Zone eruption fissure 3 lava flow thermal map December 7, 2022 — Mauna Loa Northeast Rift Zone eruption fissure 3 lava flow thermal map
This reference map depicts the ongoing Mauna Loa eruption on Dec. 7, 2022.
December 6, 2022 — Mauna Loa Eruption Map December 6, 2022 — Mauna Loa Eruption Map
This reference map depicts the ongoing Mauna Loa eruption on Dec. 6, 2022.
December 5, 2022 — Mauna Loa Eruption Map December 5, 2022 — Mauna Loa Eruption Map
This reference map depicts the ongoing Mauna Loa eruption on Dec. 5, 2022.
December 5, 2022 — Thermal Maps Showing Evolution of Mauna Loa Fissure 3 Lava Flow December 5, 2022 — Thermal Maps Showing Evolution of Mauna Loa Fissure 3 Lava Flow
These maps show evolution of the lava flow from fissure 3 over 5 days.
December 4, 2022 — Mauna Loa Eruption Map December 4, 2022 — Mauna Loa Eruption Map
This reference map depicts the ongoing Mauna Loa eruption on Dec. 4, 2022.