Videos

B-roll of trains, powerlines, roads, and utilities over the San Andreas Fault at Cajon Pass.

B-roll of trains, powerlines, roads, and utilities over the San Andreas Fault at Cajon Pass.

B-roll of trains, powerlines, roads, and utilities over the San Andreas Fault at Cajon Pass.

B-roll of trains, powerlines, roads, and utilities over the San Andreas Fault at Cajon Pass.

Time-lapse photography of the transition from fall-to-winter, the buildup of shelf ice, flow constriction, and jamming of river ice along the Niobrara River in the Fort Niobrara National Wildlife Refuge in north-central Nebraska. Flow in the photos is from left to right.

This video provides a visual example of how airborne LiDAR (Light D
etection And Ranging) imagery penetrates dense forest cover to reveal
an active fault line not detectable with conventional aerial
photography. The video shows an aerial perspective of the range front
Mt. Tallac fault, which is one of five active faults that traverse

The 1989 Loma Prieta Earthquake was not the Bay Area's "Big One" but a repeat of the destructive 1868 Hayward earthquake may qualify!

by Tom Brocher, USGS Seismologist

The size and distribution of grizzly bear populations in northwest Montana has just been released by the USGS, so research biologist Kate Kendall bring us up to speed on the findings.

Random Site: 3MS18 (L1) West Transect; Depth: 10.9 m (35.9 feet); Distance from river mouth: 2.3 Kilometers (1.4 Miles) west; Pre/Post Dam Removal: 3 year pre-dam removal; Lat/Long: 48.13957527,-123.59427175; Site Description: This transect is medium depth with substrate that varies from all fine sediment/sand/mud, some on top of bedrock, to areas of large boulders.

Permanent Site: J1 East Transect; Depth: 9.5 Meters (31.2 Feet); Distance from river mouth: 6.7 Kilometers (4.1 Miles) east; Pre/Post Dam Removal: 1 year pre-dam removal; Lat/Long: ; Site Description: This site is medium depth. Substrates is a gravel/cobble/sand mixture with an occasional boulder.

Permanent Site: J1 West Transect; Depth: 9.2 Meters (30.2 Feet); Distance from river mouth: 6.6 Kilometers (4.1 Miles) east; Pre/Post Dam Removal: 1 year pre-dam removal; Lat/Long: 48.13607725,-123.48002186; Site Description: This site is medium depth. Substrates is a gravel/cobble/sand mixture with an occasional boulder.

Deployment of the Conductivity, Temperature, and Depth Profiler (CTD) equipment from the U.S. Coast Guard Cutter Healy in the Artic Ocean.

Movie shows a roiling, bubbling lava surface approximately 100 yards beneath the rim of the vent within Halema`uma`u. This is the first clear view of lava within the vent, which opened on March 19, 2008. The video was taken from a helicopter hovering over the Halema`uma`u overlook area.

Movie, in 'nightshot' mode and zoomed in on the Halema`uma`u vent, shows the explosive eruption which occurred at 8:13 pm. This eruption carpeted the area around the Halema`uma`u crater rim with ejecta as large as 8 inches long.

An explosive eruption from the informally-named Overlook vent at Kilauea's summit (see http://hvo.wr.usgs.gov/kilauea/timeline/ for links describing eruptive activity at the summit of Kilauea Volcano) occurred on September 2, 2008.

Fowler, K.K., Kim, M.H., Menke, C.D., and Arvin, D.V., 2010, Flood of September 2008 in Northwestern Indiana: U.S. Geological Survey Open File Report 2010--1098, 20 p.

Flood of September 2008 in Northwestern Indianahttp://pubs.usgs.gov/ofr/2010/1098/

Video shows an ash-emission event at 6:53pm on August 31 from the vent in Halema`uma`u crater. The event begins with a robust pulse of ash, followed shortly by flashes of bright incandescence that rise about 50 yards above the vent.

The amazing capabilities of subsurface life

by Barbara Bekins, USGS Research Hydrologist

LUST= Leaking Underground Storge Tank

Movie shows a small explosive eruption, at 7:37 am, from the vent in Halema`uma`u crater. The normal white degassing plume is rapidly overwhelmed by a more robust, ash-rich plume that rises rapidly from the vent. This is the fifth explosive eruption since the new vent at Halema`uma`u appeared in mid-March.

Random Site: 5SM18 East Transect; Depth: 6.7 Meters (22.0 Feet); Distance from river mouth: 4.5 Kilometers (2.8 Miles) east; Pre/Post Dam Removal: 3 years pre-dam removal; Lat/Long: 48.1357869,-123.5095144; Site Description: This is a shallow site. Sediment is a gravel/sand mixture. Red, green and brown seaweed is abundant.

Random Site: 5SM18 West Transect; Depth: 6.1 Meters (20 Feet); Distance from river mouth: 4.5 Kilometers (2.8 Miles) east; Pre/Post Dam Removal: 3 years pre-dam removal; Lat/Long: 48.13592923,-123.51082988; Site Description: This is a shallow site. Sediment is a gravel/sand mixture. Red, green and brown seaweed is abundant.