Images

The Lushan station clock stoped in the moment of the earthquake.

Damage to local stores in downtown Lushan.

Damage to a village house. Longxingcun.

Temporary movable plank houses for the students.  Tianquan Elementary School.

Building damage consisted on diagonal shear cracks in masonry walls. Lushan downtown.

Damage to a village house. Longmenxiang.

Damage to a village house. Longmenxiang.

Damage to a village house. Longmenxiang.

Damage to a village house. Longxingcun.

Damage to local stores in downtown Lushan.

Damage to local stores in downtown Lushan.

Life in a tent. Two kids singing and playing among the tents.

Damage to local stores in downtown Lushan.

Damage to a village house. Longmenxiang.

Damage to a village house. Longmenxiang.

Damage to a village house. Longxingcun.

Oilfield waste arrives by tanker truck at a wastewater disposal facility near Platteville, Colo. After removal of solids and oil, the wastewater is injected into a deep well for permanent storage underground. This disposal process has the potential to trigger earthquakes, but very few wastewater disposal wells produce earthquakes.

Oilfield waste arrives by tanker truck at a wastewater disposal facility near Platteville, Colo. After removal of solids and oil, the wastewater is injected into a deep well for permanent storage underground. This disposal process has the potential to trigger earthquakes, but very few wastewater disposal wells produce earthquakes.

Top: The global tectonic regions modified from García et al. (2012), with each region shown in a different color. Bottom: The productivity parameter (a-value) and temporal decay parameter (p-value) for each global tectonic regime shown as a “+” with uncertainty shown by the line of matching color. Figures from Page et al. (2016).

USGS geoscientists Wright Horton, Richard Harrison, and Anjana Shah (left to right) are studying an exploratory trench for possible earthquake-related deformation.

USGS geophysicist Steve Snyder is measuring gravity, for information on geology beneath the surface, and the GPS location of this measurement in the earthquake area.