Videos

Volcanic eruptions occur int he State about as frequently as the large San Andreas Fault Zone earthquakes. California's "watch list" volcanoes are dispersed throughout the State and future eruptions are inevitable—the likelihood of renewed volcanism is on the order of one in a few hundred to one in a few thousand annually.

Permanent Site: F1 East Transect; Depth: 6.3 Meters (20.6 Feet); Distance from river mouth: 1.3 Kilometers (0.8 Miles) east; Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.15292999, -123.55011402; Site Description: Visibility on the day this video was taken was bad and the currents were swift. This is a shallow site. Substrate is all sand.

Permanent Site: F1 West Transect; Depth: 6.6 Meters (21.7 Feet); Distance from river mouth: 1.3 Kilometers (0.8 Miles) east; Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.15292999, -123.55078602; Site Description: Visibility on the day this video was taken was bad and the currents were swift. This is a shallow site. Substrate is all sand.

The video shows small smoking objects (insects) and a larger object (bird) as it begins to smoke when entering the solar flux. The turquoise window is the thermal camera view of this same event.

The video shows smaller smoking objects (insects). Dark objects (birds) are flying above the tower. We are uncertain of the origin of dark trails following the birds. 
 

The lava flow southeast of Pu'u 'Ō'ō reached the ocean overnight at about 1:15 am. The narrow lobe of lava spilling over the sea cliff has built a tiny delta at the shore, with a weak ocean entry plume.

Permanent Site: D2 East Transect; Depth: 11.9 Meters (38.9 Feet); Distance from river mouth: 0.3 Kilometers (0.2 Miles); Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.15233001,-123.56829403; Site Description: This site is right off the mouth of the river and is actively being buried in sandy substrate.

Permanent Site: L1 East Transect; Depth: 11.4 Meters (37.4 Feet); Distance from river mouth: 2.3 Kilometers (1.4 Miles) west; Pre/Post Dam Removal: 5 years post-dam removal; Lat/Long: 48.13957527,-123.59359993; Site Description: This transect is medium depth. Substrate is mainly fine sediment/sand/mud covered in a layer of brown diatoms (0:39 seconds).

Stunning 4K aerial and ground b-roll of the Kīlauea Volcano Halemaʻumaʻu Crater Summit Vent Lava Lake taken between July 24 and July 31, 2016. 

Webinar Summary: The Wind River Reservation in west-central Wyoming is home of the Eastern Shoshone and Northern Arapaho Tribes. The reservation has experienced severe drought impacts on Tribal livelihoods and cultural activities in recent years.

Dr. Kenneth Pierce studied the geology and geomorphology of the greater Yellowstone area for nearly his entire career with the U.S. Geological Survey. From 1965 to present, Dr.

Dr. Kenneth Pierce studied the geology and geomorphology of the greater Yellowstone area for nearly his entire career with the U.S. Geological Survey. From 1965 to present, Dr.

The lava flow southeast of Pu'u 'Ō'ō continues to advance downslope, and has crossed roughly half of the coastal plain. Upslope of the flow front there was still some 'a'ā activity, with several small open channels on the pali. The front of the flow was 1.7 km (1.1 miles) from the ocean today.

The lava flow southeast of Pu'u 'Ō'ō continues to advance downslope, and has begun crossing the coastal plain. The leading portion of the flow now consists ot pāhoehoe, shown in this video. Upslope of the flow front there was still some 'a'ā activity, with a few small open channels on the pali.

The lava flow southeast of Pu'u 'Ō'ō continues to advance downslope, and reached the base of the pali yesterday. The leading portion of the flow still consists of narrow channelized 'a'ā streaming down the steep part of the pali.

• Wetlands are hotspots for mercury methylation and export of methylmercury to aquatic foodwebs.
• Rice is the most abundant wetland type in California and globally in temperate and tropical latitudes.

The lava flow southeast of Pu'u 'Ō'ō continues to advance downslope, and was reaching the base of the pali today. Although the malority of the flow activity is pāhoehoe, the fast-moving flow front IS channe ized 'a'ā. The leading tip of the flow is burning vegetation in a kīpuka.

The lava flow southeast of Pu'u 'Ō'ō continues to advance downslope, and is now progressing down the pali. The flow is following the eastern boundary of Hawai'i Volcanoes National Park, and the western boundary of the abandoned Royal Gardens subdivision. Although the majority of the flow activity is pāhoehoe, the fast-moving flow front is channelized 'a'ā.

The lava lake at Kilauea's summit has risen over the past few days, providing improved views of the lake activity. Spattering along the southern lake margin was vi orous this evening, but within the range of normal activity for the la e. Spatter was thrown as high as the Halema'uma'u Crater floor, about 25 m (80 ft) above the lake surface.

The permanence of stream flow in stream networks is a critical driver of water quality, in-stream and riparian ecological processes, and downstream water availability.

USGS Research Geophysicist Kate Allstadt conducts experiments at the U.S. Geological Survey debris-flow flume, near Eugene, Oregon. Dr. Allstadt and her group are working toward an understanding of how debris flows generate seismic signals.