Live Seismic Telemetry • REVIEWED Event

Moderate 5.2 Earthquake Near Port-Olry, Vanuatu

1 day agoSunday, September 13, 2026 at 07:19:21 AM UTC

A moderate magnitude 5.2 earthquake struck 43 km ESE of Port-Olry, Vanuatu on Sunday, September 13, 2026 at 07:19:21 AM UTC. This intermediate focal depth (135.1 km depth) released energy equivalent to approximately 951 tons of TNT. Here is the verified US telemetry, live epicenter map, and ground shaking assessment.

5.2MAG
Moderate EarthquakeIntermediate Focal Depth
Port-Olry, VanuatuVanuatu(43 km ESE of)

Seismic Telemetry Specifications

Magnitude

5.2MWW

Moderate Seismic Class

Focal Depth

135.1km

Upper Mantle

Epicenter

15.220° S, 167.436° E

GPS Coordinates

Energy Yield

951 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 5.2 event is classified as a moderate earthquake. Can cause slight to moderate damage to poorly constructed buildings. Felt widely across nearby communities within dozens of kilometers.

Estimated Shaking Radius~100–250 km
Potential Damage Zone~30–50 km
Focal Depth EffectModerate Damping

Estimated Shaking Across Nearby Communities

Port-Olry, Vanuatu43 km (26.7 mi) W

Felt by many indoors. Dishes, windows rattle; walls make creaking sound.

MMI IVLight
Luganville43.4 km (27 mi) SW

Felt by many indoors. Dishes, windows rattle; walls make creaking sound.

MMI IVLight
Port Vila295.2 km (183.4 mi) SSE

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

MMI IIIWeak

Did You Feel This Earthquake?

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What Does Magnitude 5.2 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
5.0 – 5.9Moderate
This Event
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 ≈ 31.62 times per unit).

Why Did This Earthquake Happen?

Vanuatu's seismicity is fundamentally governed by its tectonic setting: Indo-Australian Plate subducting eastward beneath the Pacific Plate along the active New Hebrides Trench. Major regional fault structures include New Hebrides Trench, Central New Hebrides Fault Zone.

Originating at a depth of 135.1 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

Following an earthquake of magnitude 5.2, an active aftershock sequence is expected over the coming days and weeks. In accordance with Omori's Law and Båth's Law of seismology, secondary tremors decrease in frequency over time, with the largest expected aftershock historically averaging approximately 1.0 to 1.2 magnitude units below the mainshock. Local residents should remain vigilant for secondary shaking, particularly when inspecting older structures or unreinforced masonry.

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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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