Images

Localized flooding on Hidewood Creek near Estelline, SD, on June 23, 2013. Severe storms during June 21-22, 2013, in eastern South Dakota resulted in high flows in several streams across the area. The peak discharge on Hidewood Creek (streamgage 06479640) from this storm event was about 4,200 cubic feet per second.

This geologic map of Mauna Loa shows surface flows that have been mapped as of 2013. The flows are color-coded to reflect age. Warm colors indicate younger flows, with red indicating flows erupted since 1832. Cooler colors indicate older flows, such as at South Point, which is covered by flows ranging from 7,000 to more than 21,000 years old (blues and purple).

Temporary dormitory for students in movable plank houses for the students.

Damage to a village house.

Damage to a village house.

Damage to a local school building. Guozhang Middle School.

Damage to a local school building. Guozhang Middle School.

Students having class in temporary movable plank houses.

Temporary movable plank houses for the students.

Landslide in the earthquake.

Total collapse of a reinforced building with masonry infill walls. Rubble has been disturbed by heavy equipment.

Emergency shelter camp for thirty families erected at the site of a former village.

People next to the ruins.

People next to the ruins.

Timberwork house with wood embedded in cement wall has little damage during earthquake.

People next to the ruins.

Damage to a village house.

Timberwork house with "soft connection" has little damage during earthquake.

Damage to a village house. Gaojiabian, Lushan.

To better understand the physics of debris flows and to make more accurate hazards forecasts in the natural environment, scientists perform controlled experiments at the large-scale USGS debris flow flume facility.

A close-up of the Kahauale‘a II flow burning vegetation at the forest line, just north of Pu‘u ‘Ō‘ō. The flow consists of numerous slow-moving pāhoehoe lobes.