2+ hour, 13+ min ago   (202+ words) RESTON, Va. – Low-level airplane flights will begin as soon as late July over eastern Kansas to image geology using airborne geophysical technology. The flights are a collaborative effort between the U.S. Geological Survey’s Earth Mapping Resources Initiative and the Kansas…...

1+ week, 14+ hour ago   (494+ words) Over the study period, baseflow index (BFI) declined in headwaters and increased at mid-elevations. Springtime increases in BFI demonstrate the increasingly important role baseflow plays in water supply. Identifying the sources, locations, and timing of water that contributed to the…...

4+ day, 22+ hour ago   (280+ words) Nearly two hundred miles offshore of the Oregon/California border lies Escanaba Trough, a unique mid-ocean ridge covered in deep sediment up to 500 meters thick, dotted with active hydrothermal vent systems. Detailed study of its geologic structure has long been…...

1+ week, 4+ day ago   (58+ words) USGS (.gov) Official websites use.gov Secure.gov websites use HTTPS July 15, 2026 — Episode 51 lava fountain, Kīlauea summit Episode 51 of lava fountaining in Halemaʻumaʻu began at the summit of Kīlauea began at 8:30 a.m. HST on July 15, 2026....

1+ week, 3+ day ago   (735+ words) The Multispectral Scanner (MSS) carried on Landsat 1,2,3,4 and 5 collected data in four ranges (bands). The Thematic Mapper (TM) sensor on Landsat 4 and Landsat 5 included bands in the same ranges found on earlier satellites and added a thermal and a shortwave…...

1+ week, 4+ day ago   (155+ words) (A) Package 1 as clasts (see arrow) within lithic breccia in Bog Creek (Wilson et al., 2018). (B) Package 2 with scoria indicated by arrows. (C) Package 3 with increased crystal sizes to all other packages found within dark matrix. (D) Package 4 at Thistle Creek with dark clasts…...

1+ week, 4+ day ago   (124+ words) On July 15, Kīlauea summit eruption episode 51 lava fountains were a sight to behold from Uēkahuna overlook in Hawaiʻi Volcanoes National Park. Large crowds gathered to watch lava fountains from the Halemaʻumaʻu north vent, along with flows on the crater floor....

2+ week, 17+ hour ago   (93+ words) USGS (.gov) Hydrocarbons in Yellowstone? Yes indeed, there are oil seeps in the northeastern part of the park! These seeps are a consequence of the region’s long and complex geological history. Allen, E.T., Day, A.L. (1935) The Hot Springs of the…...

2+ week, 2+ day ago   (105+ words) This reference map depicts the Kīlauea summit eruption within Halema‘uma‘u crater that began on December 23, 2024. Most of the data for this map were collected during a USGS Hawaiian Volcano Observatory helicopter overflight on June 30, 2026, so the provided statistics…...

1+ week, 6+ day ago   (35+ words) USGS (.gov) Official websites use.gov Secure.gov websites use HTTPS Moraines and glacial erratics near Junction Butte in northeast Yellowstone National Park...