Interactive U.S. Fault Map | U.S. Geological Survey - USGS.gov
2022年9月27日 · Map showing Quaternary faults in the western U.S. and Pacific Ocean. Note that most faults that can affect residents are either onshore or just offshore. 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.
Faults | U.S. Geological Survey - USGS.gov
This database contains information on faults and associated folds in the United States that demonstrate geological evidence of coseismic surface deformation in large earthquakes during the past 1.6 million years (Ma).
Earthquakes - AZGS
Earthquake faults are fractures below and at the land surface that have evidence of rock, sediment and or soil offsets. If large enough (greater than about M6.3), earthquakes will disrupt the land surface (figure of Pitaycachi fault scarp).
OpenQuake Map Viewer - Global Seismic Hazard Map - GEM …
The Global Earthquake Model (GEM) Global Seismic Hazard Map (version 2018.1) depicts the geographic distribution of the Peak Ground Acceleration (PGA) with a 10% probability of being exceeded in 50 years, computed for reference rock conditions (shear …
Interactive map of natural hazards in Arizona
Earthquakes since 1852; Over 8,000 landslide features; Active faults; Earth fissures; Flood potential; Fire risk index; The map is searchable by street address so that hazard information can be quickly and easily found for specific locations.
What is a fault and what are the different types?
Learn More: Glossary of earthquake terms. A fault is a fracture or zone of fractures between two blocks of rock. Faults allow the blocks to move relative to each other. This movement may occur rapidly, in the form of an earthquake - or may occur slowly, in the form of creep.
What to know about earthquakes in Arizona - azcentral.com
2023年7月24日 · Where are Arizona’s fault lines? There are about 100 faults known to be active inside the borders of Arizona. Within the state, there is a seismic belt where the majority of earthquakes happen.
Earthquake Faults and Folds in the USA - ArcGIS
2021年7月9日 · The EHP contains information about Quaternary faults and folds for the conterminous U.S. It contains locations and information on faults and associated folds that are believed to be sources of significant earthquakes (those of magnitude 6.0 or greater) during the past 1.6 million years.
Earthquake | Definition, Causes, Effects, & Facts | Britannica
2024年11月10日 · Earthquakes can occur anywhere, but they occur mainly along fault lines (planar or curved fractures in the rocks of Earth’s crust), where compressional or tensional forces move rocks on opposite sides of a fracture. Faults extend from a few centimetres to many hundreds of kilometres.
Interactive map of earthquakes around the world
The U.S. Geological Survey's Latest Earthquakes viewer shows the locations and magnitudes of recent earthquakes around the world. Users can also search the archives for global earthquakes dating back to the early 20th century. Maps can be generated for specified ranges of time, area, and earthquake magnitude.