M 6.4 - Ridgecrest Earthquake Sequence
Seismic Telemetry Specifications
6.4MW
Strong Seismic Class
10.5km
Crustal Layer
35.705° N, 117.504° W
GPS Coordinates
60 kt
TNT Equivalent Power
CI
USGS Real-time Feed
Epicenter Location & Tectonic Fault Map
Is This Earthquake Dangerous?
A magnitude 6.4 event is classified as a strong earthquake. Can be destructive in populated areas up to ~160 km from the epicenter. Well-built structures withstand shaking, but unreinforced masonry may suffer serious damage.
Estimated Shaking Radius
~250–500 km
Potential Damage Zone
~100–160 km
Focal Depth Effect
High Surface Energy
Tsunami Warning / Advisory Active
A tsunami advisory was generated following this seismic event. Coastal residents in the region should immediately follow evacuation instructions from local disaster authorities.
What Does Magnitude 6.4 Mean?
Earthquake strength is measured on a logarithmic scale. Compare this event with the full seismic scale:
Logarithmic Energy Multiplier
Because seismic scales are logarithmic, each whole integer increase represents:
10× Ground Motion Amplitude
The seismograph wave amplitude jumps by tenfold for every 1.0 magnitude step.
~31.6× Radiated Kinetic Energy
Total energy release increases exponentially (101.5 ≈ 31.62 times per magnitude unit).
Why Did This Earthquake Happen?
Earthquakes occur when elastic stress built up along tectonic plate boundaries, regional fault lines, or crustal fractures suddenly exceeds the friction holding the rock masses together. When the fault slips, accumulated energy radiates outward in all directions as high-velocity seismic waves.
Originating at a depth of 10.5 km (Earth's Crust (0–70 km)), this rupture occurred occurred within the brittle upper crust. shallow earthquakes produce the highest peak ground acceleration and the sharpest surface shaking.
Earthquake Safety Action Plan
- •Drop, Cover, and Hold On: Take cover beneath a sturdy table or desk.
- •Stay indoors away from exterior glass windows and heavy unanchored fixtures.
- •If outdoors, move into an open area away from power lines and building facades.
- •Inspect utilities for damaged gas lines, water leaks, or electrical hazards.
- •Expect Aftershocks: Secondary tremors frequently strike after moderate and strong events.
- •Avoid damaged structures and listen to official emergency broadcasts.
- •Maintain a 72-hour emergency go-bag with water, non-perishable food, and first aid.
- •Anchor heavy furniture, water heaters, and appliances to structural wall studs.
- •Establish a family emergency communication protocol and meeting point.
Did You Feel This Earthquake?
Help seismologists and community members track real-world ground shaking intensity near Ridgecrest Earthquake Sequence.
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