This report provides trench photomosaics, logs and related site information, age data, and earthquake event evidence from three paleoseismic trench sites on the Bear River Fault Zone.

Dec 2, 2014 · Consider opening this content in Map Viewer to ensure the best experience.

Consult these maps of world for fault lines and information on seismic zones. Examine earthquake-prone regions with detailed geographic maps.

Large faults within Earth 's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones …

These maps are nice illustrations of the fact that earthquakes occur along faults. You can click the small boxes to zoom in and get more details on specific quakes. Did you feel it? Seismometers …

Sep 27, 2022 · The various colors and line types indicate different ages of the most recent earthquakes on the fault and how well the location of the fault is constrained. For more details, …

Jul 15, 2025 · New tools and technology identified nearly 500 additional faults that could produce a damaging quake, showcasing the evolving landscape of earthquake research. The 2023 …

This feature layer, utilizing data from the U.S. Geological Survey's Earthquake Hazards Program, displays known faults and folds in the United States. This layer is checked monthly for updates.

Jul 1, 2025 · Fault lines are fractures in the Earth’s crust where tectonic plates converge, serving as the primary sites for earthquakes. This article explores the formation processes and types …

Oct 20, 2010 · When it comes to fault lines and the role they have in earthquakes, three important factors come into play. These are known as the "slip", "heave" and "throw".