Live Seismic Telemetry • REVIEWED Event

Light 4.8 Earthquake Near Tadine, New Caledonia

11 hours agoTuesday, September 15, 2026 at 04:52:26 AM UTC

A light magnitude 4.8 earthquake struck 229 km E of Tadine, New Caledonia on Tuesday, September 15, 2026 at 04:52:26 AM UTC. This intermediate focal depth (98.7 km depth) released energy equivalent to approximately 239 tons of TNT. Here is the verified US telemetry, live epicenter map, and ground shaking assessment.

4.8MAG
Light EarthquakeIntermediate Focal Depth
Tadine, New CaledoniaNew Caledonia(229 km E of)

Seismic Telemetry Specifications

Magnitude

4.8MB

Light Seismic Class

Focal Depth

98.7km

Upper Mantle

Epicenter

21.581° S, 170.092° E

GPS Coordinates

Energy Yield

239 tons

TNT Equivalent Power

Network Source

US

USGS Real-time Feed

Epicenter Location & Tectonic Fault Map

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Is This Earthquake Dangerous?

A magnitude 4.8 event is classified as a light earthquake. Noticeable shaking of indoor objects and rattling doors/windows. Generally causes none to slight non-structural damage in older buildings.

Estimated Shaking Radius~50–100 km
Potential Damage Zone< 15 km (very minor)
Focal Depth EffectModerate Damping

Estimated Shaking Across Nearby Communities

Tadine, New Caledonia229 km (142.3 mi) W

Felt only by a few persons at rest, especially on upper floors.

MMI IIVery Weak

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What Does Magnitude 4.8 Mean?

Earthquake strength is measured on a logarithmic scale. Compare this event with the full seismic scale:

1.0 – 2.9Micro
3.0 – 3.9Minor
4.0 – 4.9Light
This Event
5.0 – 5.9Moderate
6.0 – 6.9Strong
7.0 – 7.9Major
8.0+Great

Logarithmic Energy Multiplier

Because seismic scales are logarithmic, each whole integer increase represents:

10× Ground Motion Amplitude
The seismograph wave amplitude jumps tenfold for every 1.0 magnitude step.
~31.6× Radiated Kinetic Energy
Total energy release multiplies exponentially (101.5 &approx; 31.62 times per unit).

Why Did This Earthquake Happen?

New Caledonia's seismicity is fundamentally governed by its tectonic setting: Subduction of the Australian Plate beneath the Pacific/New Hebrides Plate along the southern New Hebrides Trench. Major regional fault structures include New Hebrides Subduction Zone, Loyalty Basin Faults.

Originating at a depth of 98.7 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.

Aftershock Outlook & Secondary Tremors

Seismologists note that minor aftershocks remain common in the 24 to 48 hours following tremors of magnitude 4.8. According to statistical seismic models, there is roughly a 5% probability of a subsequent event of equal or greater strength occurring in the same fault zone. Residents in New Caledonia are advised to check living spaces for unsecured items.

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Earthquake Safety Action Plan

Complete Safety Guide →
During the Shaking
  • 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.
Immediately After
  • 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.
Preparation & Kits
  • 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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