Categorized | Featured, Gallery, Sci-Tech, Videos, Volcano

Volcano Watch: Kilauea activity update for October 1, 2015


Time-lapse movie of Halemaumau Crater from the south rim. September 24-October 1, 2015. Images courtesy of USGS/HVO


Time-lapse movie of Halemaumau Overlook Vent. September 24-October 1, 2015. Images courtesy of USGS/HVO


Time-lapse movie of Halemaʻumaʻu Overlook Vent from Hawaiian Volcano Observatory. September 24-October 1, 2015. Images courtesy of USGS/HVO


Time-lapse thermal image movie of Halemaumau Overlook Vent. September 24-October 1, 2015. Images courtesy of USGS/HVO


Time-lapse movie of Halemaumau Overlook Vent from the West Rim of Halemaumau Crater. September 24-October 1, 2015. Images courtesy of USGS/HVO


Time-lapse movie of Halemaumau Crater looking Southwest. September 24-October 1, 2015. Images courtesy of Hawaii Volcanoes National Park


Time-lapse movie of Kīlauea Caldera from Hawaiian Volcano Observatory. September 24-October 1, 2015. Images courtesy of USGS/HVO

(Activity updates are written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory.)

Kīlauea continues to erupt at its summit and East Rift Zone with no significant changes this past week. The summit lava lake level varied between about 54 and 63 m (177–207 ft) below the vent rim within Halema‘uma‘u Crater. On the East Rift Zone, scattered lava flow activity remained within 7 km (4.3 mi) of Puʻu ʻŌʻō.

Mauna Loa is not erupting. During the past week, earthquake rates continued to be elevated, though at a lower weekly rate than previously recorded. Deformation data continued to indicate slight inflation of magma reservoirs within the volcano.

One earthquake was reported felt on the Island of Hawai‘i this past week. On Friday, September 25, 2015, at 12:27 a.m., HST, a magnitude-3.4 earthquake occurred 14.8 km (9.2 mi) west of Kalapana at depth of 7.3 km (4.6 mi).

Please visit the HVO website (hvo.wr.usgs.gov) for past Volcano Watch articles, Kīlauea daily eruption updates, Mauna Loa weekly updates, volcano photos, recent earthquakes info, and more; call for summary updates at 808-967-8862 (Kīlauea) or 808-967-8866 (Mauna Loa); email questions to askHVO@usgs.gov


A lava sample collection from the perspective of an HVO geologist. Video shot Monday, September 28, 2015 courtesy of USGS/HVO


Time-lapse movie from images gathered from a temporary thermal camera looking into Pu’u ‘O’o Crater. The temperature scale is in degrees Celsius up to a maximum of 500 Celsius (932 Fahrenheit) for this camera model, and scales based on the maximum and minimum temperatures within the frame. Thick fume, image pixel size and other factors often result in image temperatures being lower than actual surface temperatures. September 24-October 1, 2015. Images courtesy of USGS/HVO


Time-lapse movie of Pu’u ‘O’o Crater North Flank from the North Rim. September 24-October 1, 2015. Images courtesy of USGS/HVO

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawaiʻi. The area of the flow on September 11 is shown in pink, while widening and advancement of the flow as of September 30 is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. The black box shows the extent of the accompanying large scale map.  The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (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 regional land cover map from National Oceanic and Atmospheric Administration (NOAA) Office of Coastal Management draped over the 1983 DEM. The bathymetry is also from NOAA.  Because the flow field is changing very little at the moment, mapping of the lava flow is being conducted relatively infrequently. We will return to more frequent mapping if warranted by an increase in activity.

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawaiʻi. The area of the flow on September 11 is shown in pink, while widening and advancement of the flow as of September 30 is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray. The black box shows the extent of the accompanying large scale map.
The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see 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 regional land cover map from National Oceanic and Atmospheric Administration (NOAA) Office of Coastal Management draped over the 1983 DEM. The bathymetry is also from NOAA.
Because the flow field is changing very little at the moment, mapping of the lava flow is being conducted relatively infrequently. We will return to more frequent mapping if warranted by an increase in activity.

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area of the flow on September 11 is shown in pink, while widening and advancement of the flow as of September 30 (based on satellite imagery) is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray.  The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 10-m digital elevation model (DEM).

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. The area of the flow on September 11 is shown in pink, while widening and advancement of the flow as of September 30 (based on satellite imagery) is shown in red. The yellow lines show the active lava tube system. Puʻu ʻŌʻō lava flows erupted prior to June 27, 2014, are shown in gray.
The base map is a partly transparent 1:24,000-scale USGS digital topographic map draped over a 10-m digital elevation model (DEM).

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

 

 

Become a fan on facebook

 

 

Quantcast
%d bloggers like this: