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June 7, 2025 — Kīlauea lava flow and tephra fall map following episode 24 June 7, 2025 — Kīlauea lava flow and tephra fall map following episode 24
This map shows lava flow and tephra accumulation at Kīlauea volcano associated with episode 24 of the ongoing eruption in Halemaʻumaʻu that started on December 23, 2024. The image covers the timespan from May 30–June 7, 2025.
June 6, 2025—Kīlauea summit eruption reference map June 6, 2025—Kīlauea summit eruption reference map
This reference map depicts the Kīlauea summit eruption within Halema‘uma‘u crater that began on December 23, 2024. As of this posting on June 6, the eruption continues episodically. Most of the map data included here were collected during a USGS Hawaiian Volcano Observatory helicopter overflight on May 28, between episodes 23 and 24.
May 30, 2025 — Kīlauea lava flow and tephra fall map following episode 23 May 30, 2025 — Kīlauea lava flow and tephra fall map following episode 23
This map shows lava flow and tephra accumulation at Kīlauea volcano associated with episode 23 of the ongoing eruption in Halemaʻumaʻu that started on December 23, 2024. The image covers the timespan from May 22–30, 2025.
May 29, 2025 — Kīlauea thermal maps following episode 21 and 23 May 29, 2025 — Kīlauea thermal maps following episode 21 and 23
This compilation shows thermal maps of Kīlauea summit collected on May 14 and 28, 2025. These maps followed episodes 21 and 23 of the ongoing Kīlauea summit eruption, respectively, and both show inactive but warm lava flows produced by the preceding lava fountaining episodes.
Bedrock geologic map of the Bellows Falls 7.5- x 15-minute quadrangle, Windham and Windsor Counties, Vermont, and Sullivan and Cheshire Counties, New Hampshire Bedrock geologic map of the Bellows Falls 7.5- x 15-minute quadrangle, Windham and Windsor Counties, Vermont, and Sullivan and Cheshire Counties, New Hampshire
Introduction The bedrock geology of the Bellows Falls 7.5- x 15-minute quadrangle, Vermont and New Hampshire, consists of polydeformed Ordovician to Devonian metasedimentary, metavolcanic, and metaplutonic rocks of the Connecticut Valley trough, Bronson Hill anticlinorium (or Bronson Hill terrane), and the Central Maine terrane. Previous work in this area includes a 1:62,500-scale...
May 21, 2025—Kīlauea summit eruption reference map May 21, 2025—Kīlauea summit eruption reference map
This reference map depicts the Kīlauea summit eruption within Halema‘uma‘u crater that began on December 23, 2024. As of this posting on May 21, the eruption continues episodically.
Cenozoic stratigraphy of Colorado Cenozoic stratigraphy of Colorado
As a successor to previous Colorado stratigraphy charts (MS-53 Colorado Stratigraphic Chart and MS-54 Cretaceous Stratigraphy of Colorado), this Colorado Geological Survey (CGS) publication resulted from a collaboration between the CGS, USGS, and the Denver Museum of Nature and Science (DMNS). The chart was designed to illustrate Cenozoic stratigraphy spanning the state’s many...
April 30, 2025—Kīlauea summit eruption reference map April 30, 2025—Kīlauea summit eruption reference map
This reference map depicts the Kīlauea summit eruption within Halema‘uma‘u crater that began on December 23, 2024. As of this posting on April 30, 2025, the eruption has had eighteen episodes, with the most recent occurring on April 22.
April 17, 2025—InSAR image of Kīlauea deformation associated with ongoing eruption April 17, 2025—InSAR image of Kīlauea deformation associated with ongoing eruption
This map shows deformation at Kīlauea volcano associated with the ongoing summit eruption that started on December 23, 2024.
Altitude of the potentiometric surface and depth to water in the Mississippi River Valley alluvial aquifer, spring 2022 Altitude of the potentiometric surface and depth to water in the Mississippi River Valley alluvial aquifer, spring 2022
Potentiometric-surface and depth-to-water maps for spring 2022 were created for the Mississippi River Valley alluvial aquifer (MRVA) using groundwater-altitude data from 1,136 wells completed in the MRVA and from the altitude of the top of the water surface in area rivers from 160 streamgages. The potentiometric-surface and depth-to-water maps for 2022 were created to support...
April 9, 2025 — Thermal map of episode 17 lava flow at Kīlauea summit April 9, 2025 — Thermal map of episode 17 lava flow at Kīlauea summit
This thermal map was taken on the 7 a.m. overflight of Kīlauea summit on April 9, 2025, and shows the expansive lava flow covering the floor of Halema‘uma‘u, supplied by lava fountains at the vent.
April 9, 2025—Kīlauea summit eruption reference map April 9, 2025—Kīlauea summit eruption reference map
This reference map depicts the Kīlauea summit eruption within Halema‘uma‘u crater that began on December 23, 2024.