Seismic Activity

Tectonic Plates Pacific Ring of Fire Earthquake Preparedness Risk Management Earthquake Risk Fault Lines Regional Analysis Risk Assessment Tsunami Risk Earthquake Impact

8 ARTICLES

last mo.

Southern California Faults at 1,000‑Year Stress High as Cajon Pass Could Let Ruptures Cross

A physics-based, 1,000-year reconstruction finds multiple segments of the San Andreas and San Jacinto systems are critically stressed, prompting researchers to urge that scenario-based results inform hazard planning and resilience.

6 ARTICLES

2mo ago

Shallow 5.2 Quake Hits Liuzhou, Killing Two and Forcing Thousands to Evacuate

6 ARTICLES

3mo ago

New Quake Record Revives San Andreas Questions as San Francisco Steps Up Safety Push

14 ARTICLES

4mo ago

Study Finds Cascadia Megathrust Often Triggers Northern San Andreas in Closely Timed Quakes

12 ARTICLES

11mo ago

Aftershocks Rattle Quake‑Hit Eastern Afghanistan as Death Toll Tops 2,200

4 ARTICLES

11mo ago

Scientists Confirm and Map Nascent Megathrust Fault Off Haida Gwaii

4 ARTICLES

last yr.

Canada Updates Seismic Model After Study Flags Yukon’s Tintina Fault as 7.5-Magnitude Threat

6 ARTICLES

last yr.

Tintina Fault, Once Dormant, Is Straining Toward a Magnitude 7.5+ Quake

3 ARTICLES

last yr.

San Diego Earthquake Highlights Urgent Need for Preparedness

3 ARTICLES

last yr.

Magnitude 7.1 Earthquake Strikes Off Tonga, Tsunami Warning Lifted

Seismic Activity

Southern California Faults at 1,000‑Year Stress High as Cajon Pass Could Let Ruptures Cross

Shallow 5.2 Quake Hits Liuzhou, Killing Two and Forcing Thousands to Evacuate

New Quake Record Revives San Andreas Questions as San Francisco Steps Up Safety Push

Deep 7.6 Earthquake Strikes Near Tonga’s Neiafu

USGS Logs 28 Quakes in North America as M3.9 Strikes Near The Geysers

New Study Finds Cascadia and San Andreas Quakes Have Often Struck in Tandem

Study Finds Cascadia Megathrust Often Triggers Northern San Andreas in Closely Timed Quakes

Aftershocks Rattle Quake‑Hit Eastern Afghanistan as Death Toll Tops 2,200

Scientists Confirm and Map Nascent Megathrust Fault Off Haida Gwaii

Canada Updates Seismic Model After Study Flags Yukon’s Tintina Fault as 7.5-Magnitude Threat

Tintina Fault, Once Dormant, Is Straining Toward a Magnitude 7.5+ Quake

San Diego Earthquake Highlights Urgent Need for Preparedness

Magnitude 7.1 Earthquake Strikes Off Tonga, Tsunami Warning Lifted