Live Seismic Telemetry • REVIEWED Event

Light 4.7 Earthquake Near Panguna, Papua New Guinea

6 hours agoTuesday, September 15, 2026 at 11:34:58 AM UTC

A light magnitude 4.7 earthquake struck 120 km S of Panguna, Papua New Guinea on Tuesday, September 15, 2026 at 11:34:58 AM UTC. This shallow crustal event (10.0 km depth) released energy equivalent to approximately 169 tons of TNT. Here is the verified US telemetry, live epicenter map, and ground shaking assessment.

4.7MAG
Light EarthquakeShallow Crustal Event
Panguna, Papua New GuineaPapua New Guinea(120 km S of)

Seismic Telemetry Specifications

Magnitude

4.7MB

Light Seismic Class

Focal Depth

10.0km

Crustal Layer

Epicenter

7.399° S, 155.385° E

GPS Coordinates

Energy Yield

169 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 4.7 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 EffectHigh Surface Energy (Crustal)

Estimated Shaking Across Nearby Communities

Panguna, Papua New Guinea120 km (74.6 mi) N

Felt indoors. Hanging objects swing slightly. Vibration like a passing light truck.

MMI IIIWeak

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What Does Magnitude 4.7 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?

Papua New Guinea's seismicity is fundamentally governed by its tectonic setting: Complex convergence between the Australian Plate and Pacific Plate, involving active microplates in the Bismarck and Solomon Seas. Major regional fault structures include New Britain Trench, Ramu-Markham Fault, Finisterre Range Thrust.

Originating at a depth of 10.0 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.

Aftershock Outlook & Secondary Tremors

Seismologists note that minor aftershocks remain common in the 24 to 48 hours following tremors of magnitude 4.7. 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 Papua New Guinea 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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