Minor 3.3 Earthquake – SOUTH OF KERMADEC ISLANDS
A minor magnitude 3.3 earthquake struck near SOUTH OF KERMADEC ISLANDS on Wednesday, September 23, 2026 at 11:35:08 PM UTC. This deep-focus event (354.5 km depth) released energy equivalent to approximately 1 tons of TNT. Here is the verified GNS telemetry, live epicenter map, and ground shaking assessment.
Seismic Telemetry Specifications
3.3MW
Minor Seismic Class
354.5km
Deep Mantle
32.933° S, 179.470° E
GPS Coordinates
1 tons
TNT Equivalent Power
GNS
USGS Real-time Feed
Epicenter Location & Tectonic Fault Map
Is This Earthquake Dangerous?
A magnitude 3.3 event is classified as a minor earthquake. Often felt by people indoors, especially on upper floors. Hanging objects may swing slightly; structural damage is extremely rare.
Estimated Shaking Across Nearby Communities
The epicenter occurred in a remote or offshore marine sector with no major population centers situated within the primary ground shaking perimeter.
Did You Feel This Earthquake?
Help seismologists and community members map real-world ground shaking near SOUTH OF KERMADEC ISLANDS.
Your immediate response verifies shaking boundaries and helps ground-truth instrumental models.
What Does Magnitude 3.3 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:
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 354.5 km (Deep Mantle Transition Zone (>300 km)), this rupture occurred generated deep within earth's mantle under immense hydrostatic pressure. surface shaking is significantly damped despite large energy release.
Aftershock Outlook & Secondary Tremors
Micro-tremors and minor events of this scale are part of ongoing background tectonic relaxation. While isolated micro-aftershocks may occur, the likelihood of a damaging secondary event remains statistically low under normal seismic conditions.
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Earthquake Safety Action Plan
Complete Safety Guide →- •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 significant events.
- •Avoid damaged structures and listen to official emergency broadcasts.
- •Maintain a 72-hour emergency go-bag with water, food, and first aid.
- •Anchor heavy furniture, water heaters, and appliances to structural studs.
- •Establish a family emergency communication protocol and meeting point.
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