Category
page 1Earthquakes

earthquake
thumb|upright=1.35|Earthquake epicenters occur mostly along tectonic plate boundaries, especially on the Pacific [[Ring of Fire.]]
earthquake prediction
branch of seismology
earthquake swarm
series of localized seismic events within a short time period
1971 San Fernando earthquake
earthquake
Advanced National Seismic System
collaboration of the U.S. Geological Survey (USGS) and regional, state, and academic partners
Earthquake forecasting
a branch of seismology concerned with the probabilistic assessment of earthquake seismic hazard
Triangle of Life
unsubstantiated theory about how to survive a major earthquake
Seismite
thumb|Seismites in the Upper Ordovician of northern Kentucky.
thumb|Seismite in Holocene sediments of the Dead Sea basin, Israel.
thumb|Seismite in the Borden Formation, Ohio, demonstrating "flow rolls".
Gutenberg discontinuity
Boundary between Earth's core and mantle
Epicentral distance