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Maps


April 13, 2018


Map of Flow Field

This map shows recent changes to Kīlauea's East Rift Zone lava flow field. The area of the active flow field as of March 14 is shown in pink, while widening and advancement of the active flow as of April 13 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray. The yellow line is the trace of the active lava tubes. The Kamokuna ocean entry is inactive. The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map) (see large map)

(see large map)

April 12, 2018


Satellite image shows location of breakouts on flow field

This satellite image was captured on Thursday, April 12, by the Landsat 8 satellite. Although this is a false-color image, the color map has been chosen to mimic what the human eye would expect to see. Bright red pixels depict areas of high temperatures and show active lava. White areas are clouds.


The image shows that breakouts continue in several areas on the flow field. The largest breakout is in the upper flow field, about 1 km (0.6 miles) east of Pu‘u ‘Ō‘ō. The closest breakouts to the coast include a few small areas that are active near the top of the pali. (see large map)

March 22, 2018


Map of Flow Field

This map shows recent changes to Kīlauea's East Rift Zone lava flow field. The area of the active flow field as of February 27 is shown in pink, while widening and advancement of the active flow as of March 14 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray. The yellow line is the trace of the active lava tubes. The Kamokuna ocean entry is inactive.

The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map) (see large map)

February 27, 2018


Map of Flow Field

This map shows recent changes to Kīlauea's East Rift Zone lava flow field. The area of the active flow field as of February 20 is shown in pink, while widening and advancement of the active flow as of February 27 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray. The yellow line is the trace of the active lava tubes. The Kamokuna ocean entry is inactive.


The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map)

February 23, 2018


Map of Flow Field

This map shows recent changes to Kīlauea's East Rift Zone lava flow field. The area of the active flow field as of January 30, 2018 is shown in pink, while widening and advancement of the active flow as of February 20, 2018 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray. The yellow line is the trace of the active lava tubes. The Kamokuna ocean entry is inactive. The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map) (see large map) (see large map) (see large map)

February 1, 2018


Map of Flow Field

This map shows recent changes to Kīlauea's East Rift Zone lava flow field. The area of the active flow field as of January 05, 2018 is shown in pink, while widening and advancement of the active flow as of January 30, 2018 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray. The yellow line is the trace of the active lava tubes; based on the lack of activity in the lower reaches of the flow field, a portion of the main lava tube leading to the ocean may contain little or no moving lava, but it is still quite hot to the thermal camera. The Kamokuna ocean entry is inactive. The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map) (see large map) (see large map)

January 5, 2018


Map of Flow Field

This map shows recent changes to Kīlauea's East Rift Zone lava flow field. The area of the active flow field as of December 12, 2017 is shown in pink, while widening and advancement of the active flow as of January 5, 2018 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray. The yellow line is the trace of the active lava tubes; based on the lack of activity in the lower reaches of the flow field, a portion of the main lava tube leading to the ocean may contain little or no moving lava, but it is still quite hot to the thermal camera. The Kamokuna ocean entry is inactive.

The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map) (see large map)
Thermal map of flow field

This map is similar to the map above but shows a thermal map over the Episode 61g lava flow. Cooler colors (blue and green) show cooled, inactive portions of the flow surface. Hot colors (red and orange) show areas of active surface breakouts.


The thermal map was constructed by stitching many overlapping oblique thermal images collected by a handheld thermal camera during a helicopter overflight of the flow field. (see large map)

December 13, 2017


Map of Flow Field

This map shows recent changes to Kīlauea's East Rift Zone lava flow field. The area of the active flow field as of November 22 is shown in pink, while widening and advancement of the active flow as of December 12 is shown in red. Older Puʻu ʻŌʻō lava flows (1983–2016) are shown in gray. The yellow line is the trace of the active lava tubes; based on the lack of activity in the lower reaches of the flow field, a portion of the main lava tube leading to the ocean may contain little or no moving lava, but it is still quite hot to the thermal camera. The Kamokuna ocean entry is inactive.


The blue lines over the Puʻu ʻŌʻō flow field are steepest-descent paths calculated from a 2013 digital elevation model (DEM), while the blue lines on the rest of the map are steepest-descent paths calculated from a 1983 DEM (for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths. The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over the 1983 10-m digital elevation model (DEM). (see large map)

December 12, 2017


Thermal map of flow field

This map is similar to the map above but shows a thermal map over the Episode 61g lava flow. Cooler colors (blue and green) show cooled, inactive portions of the flow surface. Hot colors (red and orange) show areas of active surface breakouts.


The thermal map was constructed by stitching many overlapping oblique thermal images collected by a handheld thermal camera during a helicopter overflight of the flow field. (see large map)

November 29, 2017


Pu‘u ‘Ō‘ō Crater annotated map

This map shows Pu‘u ‘Ō‘ō Crater on Kīlauea Volcano's East Rift Zone on November 22, with labels of the crater's main features. The black dashed line outlines where the crater rim was located in 2011. Yellow dashed lines show the current crater (center), west pit (left), and spillway vent (right). The lava pond (outlined in red) within the west pit, which formed in early 2015, was active on November 22. (see large map)