M7.3 Earthquake 24 km WNW of Port-Vila, Vanuatu — December 17, 2024
2024-12-17 01:47:25 UTC (2024-12-17) · approx. 12:47 PM UTC+11 local
Felt by 77 people across nearby locations. Maximum shaking intensity MMI 8.7 (violent).
On December 17, 2024 at 01:47 UTC, a magnitude 7.3 shallow crustal earthquake struck 24 km WNW of Port-Vila, Vanuatu, at a depth of 54.4 km and coordinates -17.6914°, 168.0842°. The earthquake was reported felt by 77 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 8.7 (violent). The USGS PAGER system issued a yellow alert level for this event, indicating local impact possible. This earthquake was detected by 246 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 884, making it one of the more significant events of the week. The nearest populated place is Port-Vila (population 35,901).
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
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.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 77 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
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) | Description | Population exposed |
|---|---|---|
| MMI 3 | weak | 463 |
| MMI 4 | light | 160,182 |
| MMI 5 | moderate | 38,116 |
| MMI 6 | strong | 20,250 |
| MMI 7 | very strong | 7,088 |
| MMI 8 | severe | 83,851 |
| MMI 9 | violent | 1,717 |
Earthquake Details
168.0842°E
Technical Information
Common Questions
How strong was the magnitude 7.3 earthquake near Port-Vila, Vanuatu?
The magnitude 7.3 earthquake that struck 24 km WNW of Port-Vila, Vanuatu on December 17, 2024 at 01:47 UTC had a depth of 54.4 km. It was felt by 77 people with maximum shaking intensity of MMI 8.7 (violent). For context, this was a strong earthquake capable of causing significant damage.
Where did the earthquake occur?
The earthquake epicenter was located at -17.6914°, 168.0842°, which is 24 km WNW of Port-Vila, Vanuatu. The nearest populated place is Port-Vila (population 35,901). 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.
Authoritative source: USGS event page (event ID: us7000nzf3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, December 17, 2024). M7.3 Earthquake 24 km WNW of Port-Vila, Vanuatu — December 17, 2024. Retrieved July 17, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000nzf3/