Written by on . Last updated June 13th, 2024.

A shallow and significant MAG-5.1 aftershock struck in the Coral Sea 273 kilometer from Port-Vila, Vanuatu in the early afternoon of Tuesday June 11th, 2024.

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Earthquake Summary

This earthquake hit under water in the Coral Sea, 110 kilometers (68 mi) off the coast of Vanuatu, 273 kilometer south of Port-Vila in Shefa. The center of this earthquake had a very shallow depth of 10 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time: Jun 11, 2024 01:56PM (Efate Time)
- Jun 11, 2024 02:56 Universal Time.
Location: 273 km south of Port-Vila, Shefa, Vanuatu.
Coordinates 20°11'1"S 168°29'36"E.
Map: Map of area around epicenter.
Map of area around epicenter. Click to open in Google Maps.
Magnitude: MAG 5.1
Detected by 8 stations. Maximum Error Range ±0.11 .
Depth: 10 km (6 mi)
A very shallow depth.
Tsunami Risk: Low tsunami risk
Earthquakes under MAG-6.5 do not usually cause tsunami's.
Always stay cautious - More info here.

Nearby towns and cities

This earthquake may have been felt in Vanuatu . The closest significant population center near the earthquake is Port-Vila in Shefa, Vanuatu. Port-Vila is located 273 kilometer (170 mi) south of the epicenter.

Overview of nearby places

Distance Place
273 km (170 mi)
N from epicenter

Shefa, Vanuatu.
Cities and Towns around the epicenter of this earthquake.

This is likely an aftershock

This earthquake is likely an aftershock of the MAG-5.2 earthquake that struck 5 mins earlier. That main earthquake hit 20 km (12 mi) east-northeast of the epicenter of this MAG-5.1 aftershock.

Overview of foreshocks and aftershocks

Classification Magnitude When Where
Main Shock M 5.2 Jun 11, 2024 01:51PM
(Efate Time)
This Earthquake
M 5.1 5 mins later
Jun 11, 2024 01:56PM (Efate Time)
20 km (12 mi)
WSW from Main Shock.
Detected MAG2.5+ earthquakes within within 100km (62 mi), that occurred in the three days before and after the main shock.

More earthquakes coming?

The risk of aftershocks decreases rapidly over time. Usually, aftershocks are at least one order of magnitude lower than a main shock.

The chance that a significant earthquake like this one is followed by an even larger earthquake is not so large. On average, scientists estimate a 94% chance that a major earthquake will not be followed by an even larger one. It is still adviced to be aware of this risk

Read: How to Stay Safe during an Earthquake (cdc.gov).

Earthquakes like this happen often in the region

Earthquakes of this strength are very common in the region. In total, 222 earthquakes with a magnitude of 5.1 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every 16 days.

Low tsunami risk

DISCLAIMER: We strongly suggest to closely monitor advice from local authorities with regards to tsunami risks. Our analysis is based on automatically collected data from external sources, and these might contain mistakes. In addition, earthquakes can cause landslides that may lead to a tsunami, or be a followed by another, potentially stonger, earthquake.

Based on early data it appears this earthquake was not strong enough (lower than MAG-6.5) to be likely to cause destructive tsunami's. However this earthquake appeared to have hit at a shallow depth under sea, so stay cautious and monitor advice from local authorities.

Tsunami Risk Factors

Factor Under Sea? MAG-6.5 or stronger? Shallow depth?
Explanation Almost all tsunami's are caused by earthquakes with their epicenter under sea or very near the sea. However stay cautious in coastal areas as earthquakes on land may cause landslides into sea, potentially still causing a local tsunami. Under MAG 6.5: Very unlikely to cause a tsunami.
MAG 6.5 to 7.5: Destructive tsunami's do occur, but are uncommon. Likely to observe small sea level changes.
MAG 7.6+: Earthquakes with these magnitudes might produce destructive tsunami's.
Most destructive tsunami's are caused by shallow earthquakes with a depth between 0 and 100km under the surface of the earth. Deeper tsunami's are unlikely to displace to ocean floor.
This Earthquake This earthquake appears to have struck under the sea. Not this earthquake.
This earthquake had a magnitude of 5.1. Earthquakes of this strength are unlikely to trigger a tsunami.
This earthquake occurred at a depth of of 10 km (6 mi). Earthquakes this shallow could trigger a tsunami.


Last updated 13/06/24 06:28 (). As more information on this earthquake becomes available this article will be updated. This article is automatically composed based on data originating from multiple sources.

  1. US Geographic Society (USGS): Earthquake us7000mrme
  2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20240611_0000023
  3. Geonames.org: World Cities Database
  4. Google Maps: Static API
  5. Earthquakelist.org: Historic Earthquakes Database

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