Geological Features

Fault Lines Tectonic Plates Seismic Zones Ring of Fire Volcanoes Volcanic Regions Active Volcanoes Subduction Zones Faults Soil Composition Mountain Ranges Islands Continental Regions Seafloor Topography Coastal Areas Glaciers Submerged Landscapes Submarine Geology Fault Systems Volcanic Activity Tectonic Boundaries Subterranean Structures Oceanography Volcanic Arcs Calderas Tectonic Regions Earthquake Zones Stratovolcanoes Illinois Basin-Ozark Dome Fault Dynamics Fracture Zones Mendocino Fracture Zone Rock Formations Sedimentology Himalayan Belt

Magnitude 3.1 Quake Rattles San Ramon, Extends East Bay Swarm

USGS characterizes the activity as a recurring Calaveras Fault swarm that has not caused reported damage.

Magnitude 5.9 Earthquake Strikes Off Oregon Coast With No Tsunami Threat

Magnitude 2.8 Quake Rattles East Bay Early Thursday

Ancient Mantle Anomaly Beneath Appalachians Linked to Greenland Rift

Seven Shallow Earthquakes Strike Morris County in 18-Hour Swarm