7.3

M7.3 Earthquake 51 km ENE of Luganville, VanuatuMarch 30, 2026

2026-03-30 08:44:13 UTC (2026-03-30) · approx. 7:44 PM UTC+11 local

Felt by 32 people across nearby locations. Maximum shaking intensity MMI 6.5 (very strong).

MagnitudeM7.3(mww)
Time08:44 UTC7:44 PM UTC+11
Depth120.6 kmintermediate depth
Coordinates-15.287°, 167.583°
Felt by32DYFI responses· max MMI 6.5
Status✓ Reviewed by USGS· green PAGER
green Alertno significant casualties or damage expected

On March 30, 2026 at 08:44 UTC, a magnitude 7.3 intermediate depth earthquake struck 51 km ENE of Luganville, Vanuatu, at a depth of 120.6 km and coordinates -15.2865°, 167.5825°. The earthquake was reported felt by 32 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 6.5 (very strong). The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. This earthquake was detected by 233 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 839, making it one of the more significant events of the week. The nearest populated place is Luganville (population 18,062).

Physical scale: An earthquake of magnitude 7.3 releases seismic energy equivalent to roughly 1.3 megatons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 66 km — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Vanuatu, a region characterized by the New Hebrides subduction zone, where the Australian Plate subducts eastward at approximately 90 mm per year. View all earthquakes in Vanuatu.

Learn more: Magnitude scale · Aftershock sequences

Nearest Populated Places

Luganvillepop. 18,062
MMI 5.9 (strong)
Hog Harbourpop. 1,000
MMI 5.9 (strong)
Port-Olrypop. 1,300
MMI 5.9 (strong)
Norsuppop. 2,998
MMI 5.8 (strong)
Litzlitzpop. 1,391
MMI 5.6 (strong)
Port-Vilapop. 51,437
MMI 4.1 (moderate)
Map showing earthquake epicenter at -15.29°, 167.58°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M7.3 earthquake near 51 km ENE of Luganville, Vanuatu

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 32 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M7.3 earthquake near 51 km ENE of Luganville, Vanuatu

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Population exposure (USGS PAGER)

Estimated population that experienced each level of shaking. Based on the USGS PAGER rapid impact assessment, which combines ShakeMap output with global population grids.

Shaking intensity (MMI)DescriptionPopulation exposed
MMI 4light96,647
MMI 5moderate50,132
MMI 6strong132,646
MMI 7very strong1,073

Earthquake Details

Magnitude
7.3 mww
Depth
120.6 km
intermediate depth
Location
-15.2865°N
167.5825°E
Felt Reports
32
DYFI responses
Intensity (MMI)
6.5
very strong
Community Intensity
6.1
CDI from reports

Technical Information

Event ID
us7000s8q0
Event Type
earthquake
Status
✓ Reviewed
Significance
839
Stations Used
233
Azimuthal Gap
23.0°
Min Station Distance
0.399°
RMS Residual
0.51 sec
Last Updated
2026-05-08 09:33:58 UTC

Common Questions

How strong was the magnitude 7.3 earthquake near Luganville, Vanuatu?

The magnitude 7.3 earthquake that struck 51 km ENE of Luganville, Vanuatu on March 30, 2026 at 08:44 UTC had a depth of 120.6 km. It was felt by 32 people with maximum shaking intensity of MMI 6.5 (very strong). For context, this was a strong earthquake capable of causing significant damage.

Where did the earthquake occur?

The earthquake epicenter was located at -15.2865°, 167.5825°, which is 51 km ENE of Luganville, Vanuatu. The nearest populated place is Luganville (population 18,062). View all earthquakes in Vanuatu.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 7.3 earthquakes can continue for months to years and gradually diminish over time.

Has Vanuatu had earthquakes this big before?

The largest recorded earthquake in Vanuatu was the M7.9 Vanuatu earthquake of October 7, 2009. Today's magnitude 7.3 event is within one magnitude unit of that historical record.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us7000s8q0). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, March 30, 2026). M7.3 Earthquake 51 km ENE of Luganville, VanuatuMarch 30, 2026. Retrieved May 20, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000s8q0/