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Before and After Images

The USGS has science based work that often requires the comparison of two geographic areas over time. Though scientific data is critical to understanding changes over time, visually seeing those changes is a powerful tool in support of that data. 

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TNMCorps Mapping Challenge: City/Town Halls in NE & WY
TNMCorps Mapping Challenge: City/Town Halls in NE & WY
TNMCorps Mapping Challenge: City/Town Halls in NE & WY
TNMCorps Mapping Challenge: City/Town Halls in NE & WY as of 01/07/21
TNMCorps Mapping Challenge: City/Town Halls in NE & WY as of 01/07/21
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO as of 01/07/21
TNMCorps Mapping Challenge: Schools in MO as of 01/07/21
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX as of 01/07/21
TNMCorps Mapping Challenge: Schools in TX as of 01/07/21
TNMCorps Status Map: Unedited Points as of 09/30/2020
TNMCorps Status Map: Unedited Points as of 09/30/2020
TNMCorps Status Map: Unedited Points as of 09/30/2020
TNMCorps Status Maps: Unedited Points between 9/30/20 and 12/1/20
TNMCorps Status Maps: Unedited Points between 9/30/20 and 12/1/20
Color photograph of lava lake
KW webcam image taken December 27, 2020, just after 6:30 a.m. HST.
KW webcam image taken December 27, 2020, just after 6:30 a.m. HST.
Eruption continues in Halema‘uma‘u at Kīlauea's summit
Eruption continues in Halema‘uma‘u at Kīlauea's summit
Color photograph of lava lake
KW webcam image taken December 27, 2020, just after 6:30 a.m. HST.
KW webcam image taken December 27, 2020, just after 6:30 a.m. HST.
Eruption continues in Halema‘uma‘u at Kīlauea's summit

The KW webcam has documented the activity in Halema‘uma‘u crater wall at Kīlauea's summit. This photo comparison shows that activity has not changed significantly over the past several days.

The KW webcam has documented the activity in Halema‘uma‘u crater wall at Kīlauea's summit. This photo comparison shows that activity has not changed significantly over the past several days.

Color photograph of lava lake
KW webcam image taken December 27, 2020, just after 6:30 a.m. HST.
KW webcam image taken December 27, 2020, just after 6:30 a.m. HST.
Kīlauea summit changes - Dec. 25 to 27, 2020
Kīlauea summit changes - Dec. 25 to 27, 2020
Color photograph of lava lake
KW webcam image taken December 27, 2020, just after 6:30 a.m. HST.
KW webcam image taken December 27, 2020, just after 6:30 a.m. HST.
Kīlauea summit changes - Dec. 25 to 27, 2020

The KW webcam has captured the recent shift in vent activity in Halema‘uma‘u crater wall at Kīlauea's summit. The first image, taken on December 25, 2020, just after 6 p.m. HST shows the northern/eastern vent as more vigorous. HVO field crews observing the activity noted that at approximately 2:40 a.m.

Color photograph of lava lake
KW webcam image taken December 27, 2020, just after 6:30 a.m. HST.
KW webcam image taken December 27, 2020, just after 6:30 a.m. HST.

The KW webcam has captured the recent shift in vent activity in Halema‘uma‘u crater wall at Kīlauea's summit. The first image, taken on December 25, 2020, just after 6 p.m. HST shows the northern/eastern vent as more vigorous. HVO field crews observing the activity noted that at approximately 2:40 a.m.

Kīlauea summit eruption image from the KWcam webcam, taken on December 21
December 21 Kīlauea summit eruption image from the KWcam webcam
December 21 Kīlauea summit eruption image from the KWcam webcam
KWcam images comparing first 2 weeks of Halema‘uma‘u crater eruption
KWcam images comparing first 2 weeks of Halema‘uma‘u crater eruption
Kīlauea summit eruption image from the KWcam webcam, taken on December 21
December 21 Kīlauea summit eruption image from the KWcam webcam
December 21 Kīlauea summit eruption image from the KWcam webcam
KWcam images comparing first 2 weeks of Halema‘uma‘u crater eruption

KWcam webcam images compare the changes within Halema‘uma‘u crater since the eruption at Kīlauea Volcano’s summit started two weeks ago. The left image, taken on December 21 at 7:02 a.m. HST, shows the west vent (lower center) and north vent (center left) both erupting lava that is cascading into the new lava lake.

KWcam webcam images compare the changes within Halema‘uma‘u crater since the eruption at Kīlauea Volcano’s summit started two weeks ago. The left image, taken on December 21 at 7:02 a.m. HST, shows the west vent (lower center) and north vent (center left) both erupting lava that is cascading into the new lava lake.

Color photograph of lava lake
KW webcam image taken on December 24, 2020, around 6:30 a.m. HST
KW webcam image taken on December 24, 2020, around 6:30 a.m. HST
Recent Changes at Kīlauea Volcano
Recent Changes at Kīlauea Volcano
Color photograph of lava lake
KW webcam image taken on December 24, 2020, around 6:30 a.m. HST
KW webcam image taken on December 24, 2020, around 6:30 a.m. HST
Recent Changes at Kīlauea Volcano

Kīlauea summit KW webcam has captured the recent changes to the summit. The first image, taken on December 20, 2020, just before 6 p.m. HST shows the water lake that was present until Sunday evening. At 9:30 p.m. on December 20, an eruption began in the walls of Halemaʻumaʻu crater, vaporizing the lake.

Color photograph of lava lake
KW webcam image taken on December 24, 2020, around 6:30 a.m. HST
KW webcam image taken on December 24, 2020, around 6:30 a.m. HST

Kīlauea summit KW webcam has captured the recent changes to the summit. The first image, taken on December 20, 2020, just before 6 p.m. HST shows the water lake that was present until Sunday evening. At 9:30 p.m. on December 20, an eruption began in the walls of Halemaʻumaʻu crater, vaporizing the lake.

Color photograph of lava lake
KW webcam image taken on December 21, 2020, just after 6:30 a.m. HST.
KW webcam image taken on December 21, 2020, just after 6:30 a.m. HST.
Recent Changes at Kīlauea Volcano - Dec. 21 to Dec. 24
Recent Changes at Kīlauea Volcano - Dec. 21 to Dec. 24
Color photograph of lava lake
KW webcam image taken on December 21, 2020, just after 6:30 a.m. HST.
KW webcam image taken on December 21, 2020, just after 6:30 a.m. HST.
Recent Changes at Kīlauea Volcano - Dec. 21 to Dec. 24

Kīlauea's summit has changed dramatically over the past four days! The KW webcam has captured these recent changes. The first image, taken on December 21, 2020, just after 6:30 a.m. HST shows how much the lava lake had grown since 9:30 p.m. on December 20, when the eruption began. The second image, taken at just after 6:30 p.m.

Color photograph of lava lake
KW webcam image taken on December 21, 2020, just after 6:30 a.m. HST.
KW webcam image taken on December 21, 2020, just after 6:30 a.m. HST.

Kīlauea's summit has changed dramatically over the past four days! The KW webcam has captured these recent changes. The first image, taken on December 21, 2020, just after 6:30 a.m. HST shows how much the lava lake had grown since 9:30 p.m. on December 20, when the eruption began. The second image, taken at just after 6:30 p.m.

TNMCorps Mapping Challenge: City/Town Halls in NE & WY
TNMCorps Mapping Challenge: City/Town Halls in NE & WY
TNMCorps Mapping Challenge: City/Town Halls in NE & WY
TNMCorps Mapping Challenge: City/Town Halls in NE & WY as of 12/17/20
TNMCorps Mapping Challenge: City/Town Halls in NE & WY as of 12/17/20
TNMCorps Mapping Challenge: City/Town Halls in NE & WY
TNMCorps Mapping Challenge: City/Town Halls in NE & WY
TNMCorps Mapping Challenge: City/Town Halls in NE & WY
TNMCorps Mapping Challenge: City/Town Halls in NE & WY as of 12/23/20
TNMCorps Mapping Challenge: City/Town Halls in NE & WY as of 12/23/20
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO as of 12/23/20
TNMCorps Mapping Challenge: Schools in MO as of 12/23/20
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX as of 12/17/20
TNMCorps Mapping Challenge: Schools in TX as of 12/17/20
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX as of 12/23/20
TNMCorps Mapping Challenge: Schools in TX as of 12/23/20
TNMCorps Mapping Challenge: City/Town Halls in NE & WY
TNMCorps Mapping Challenge: City/Town Halls in NE & WY
TNMCorps Mapping Challenge: City/Town Halls in NE & WY
TNMCorps Mapping Challenge: City/Town Halls in NE & WY as of 12/10/20
TNMCorps Mapping Challenge: City/Town Halls in NE & WY as of 12/10/20
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO as of 12/03/20
TNMCorps Mapping Challenge: Schools in MO as of 12/03/20
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO as of 12/03/20
TNMCorps Mapping Challenge: Schools in MO as of 12/03/20
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO
TNMCorps Mapping Challenge: Schools in MO as of 12/10/20
TNMCorps Mapping Challenge: Schools in MO as of 12/10/20
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX as of 12/03/20
TNMCorps Mapping Challenge: Schools in TX as of 12/03/20
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX
TNMCorps Mapping Challenge: Schools in TX as of 12/10/20
TNMCorps Mapping Challenge: Schools in TX as of 12/10/20