M 2.7 - ATACAMA, CHILE
Seismic Telemetry Specifications
2.7ML
Micro Seismic Class
88.8km
Upper Mantle
27.5900° S
70.2000° W
reviewed
Net: CSN
~169 kg
TNT Explosive Equiv.
Epicenter Location & Tectonic Fault Map
Is This Earthquake Dangerous?
A magnitude 2.7 event is classified as a micro earthquake. Micro-earthquakes are rarely felt by humans and are typically recorded only by sensitive seismometers.
Estimated Shaking Radius
< 10 km
Potential Damage Zone
None
Focal Depth Effect
Moderate Damping
What Does Magnitude 2.7 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?
This event occurred along the Peru-Chile (Andean) Subduction Zone, where the dense oceanic Nazca Plate slides eastward and plunges underneath the continental South American Plate at roughly 6 to 8 centimeters per year. This megathrust boundary is one of the most seismically active fault zones on Earth.
Originating at a depth of 88.8 km (Upper Mantle / Wadati-Benioff Zone (70–300 km)), this rupture occurred originated within the descending oceanic plate inside the upper mantle. shaking radiates over a wider geographic area with attenuated high frequencies.
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 Chile.
Explore Related Seismic Activity
Monitor live earthquakes, historical magnitude leaders, and regional tectonic activity across the globe.