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Strong mag. 6.0 earthquake - Vanuatu Islands on Monday, 1 July 2019

Strong mag. 6.0 Earthquake - Coral Sea, 36 km east of Santo, Santo/Malo, Vanuatu, on Tuesday, Jul 2, 2019, at 04:13 am (Efate time)

A very strong magnitude 6.0 earthquake occurred in the Coral Sea near the coast of  Vanuatu in the early morning of Tuesday, Jul 2, 2019 at 4.13 am local time (Pacific/Efate GMT +11). The quake had a moderate depth of 115 km (71 mi) and was felt by many near the epicenter.

Strong mag. 6.0 Earthquake - Coral Sea, 36 km east of Santo, Santo/Malo, Vanuatu, on Tuesday, Jul 2, 2019, at 04:13 am (Efate time) Strong mag. 6.0 Earthquake - Coral Sea, 36 km east of Santo, Santo/Malo, Vanuatu, on Tuesday, Jul 2, 2019, at 04:13 am (Efate time)

Strong magnitude 6.0 earthquake at 115 km depth

1 Jul 17:21 UTC: First to report: GFZ after 8 minutes.
Jul 1 17:23: Magnitude recalculated from 5.8 to 5.9.
Jul 1 17:24: Magnitude recalculated from 5.9 to 6.0.

Earthquake details

Date & timeJul 1, 2019 17:13:31 UTC
Local time at epicenterTuesday, Jul 2, 2019, at 04:13 am (Pacific/Efate GMT +11)
StatusPreliminary (automatic detection)
Depth115.0 km
Epicenter latitude / longitude15.47°S / 167.49°E Coral Sea, Vanuatu
Seismic antipode15.47°N / 12.51°W Mauritania
Shaking intensityLight shaking near epicenter
Felt6 reports
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearest volcanoAoba (35 km / 22 mi)
Estimated seismic energy released6.3 x 1013 joules (17.5 gigawatt hours, equivalent to 15080 tons of TNT or 0.9 atomic bombs!) | about seismic energy
Interactive map
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Nearby places

The closest larger town where the quake might have been felt is Santo, a town with 13,000 inhabitants in Vanuatu, in 36 km (22 mi) distance west of the epicenter. People likely experienced light shaking there. In the capital of  Vanuatu, Port Vila, 267 km (166 mi) away from the epicenter, the earthquake was probably felt as weak shaking.
The following table shows some of the places that might have been affected (or not) by the shaking.
Distance Place Max. shaking intensity(*) Region Country
36 km (22 mi)
W of epicenter
(pop: 13,400)
IV: Light
65 km (41 mi)
NW of epicenter
(pop: 1,950)
IV: Light
67 km (42 mi)
S of epicenter
(pop: 3,000)
IV: Light
Malampa Province
177 km (110 mi)
N of epicenter
(pop: 1,170)
IV: Light
267 km (166 mi)
S of epicenter
Port Vila
(pop: 35,900)
III: Weak
Shefa Province
(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.

User-reports for this quake (8)

We received 7 reports for this quake.
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Puyallup / Violent shaking (MMI IX) : scary  
Russia. Sankt-Peterburg.not felt. / not felt : Без тряски и какой либо вибрации, был дома, ужинал, неощущал, зато в Санкт Петербурге сегодня сильный п  
Aore Island / Light shaking (MMI IV) : Light shaking that wakes people for only few minutes  
Luganville / Moderate shaking (MMI V)
Luganville / Light shaking (MMI IV)
port olry vanuatu / Moderate shaking (MMI V)
Luganville / Weak shaking (MMI III)
(Vanuatu, 263 km S of epicenter) : 15 seconds long at worst (reported through EMSC)  

What is Intensity and the Mercalli Intensity Scale?

The amount of shaking that occurs on the surface due to an earthquake is called the intensity. It is commonly measured on the so-called Modified Mercalli Intensity Scale (MMI) ranging from 1 (not felt) to 10 (extreme shaking), and given in Roman numerals as I,II,...IX, X, and often displayed with color codes ranging from light blue to dark red.
Earthquake intensity depends mainly on the magnitude and depth of the quake as well as the distance from the epicenter: The further away, the less shaking intensity occurs.
Read more about the MMI scale!

Compare Quake Data

Data for the same earthquake as reported by different agencies

The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag Depth Time GMT
Epicenter Agency
6.0 115 km
71 mi
17:13:31 Vanuatu Islands GFZ (German Research Centre for Geosciences)
6.0 118 km
73 mi
17:13:31 Vanuatu
6.2 km (3.8 mi) epicenter difference with GFZ
EMSC (European-Mediterranean Seismological Centre)
6.0 124 km
77 mi
17:13:31 Vanuatu Islands
0.7 km (0.4 mi) epicenter difference with GFZ
GeoAu (Geoscience Australia )
5.9 124 km
77 mi
17:13:33 Vanuatu Islands
1.1 km (0.7 mi) epicenter difference with GFZ
BMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)
6.0 100 km
62 mi
17:13:29 38km ENE of Luganville, Vanuatu
3.1 km (1.9 mi) epicenter difference with GFZ
USGS (United States Geological Survey)
6.0 104 km
65 mi
17:13:29 Vanuatu Islands [Land: Vanuatu]
31 km (19 mi) epicenter difference with GFZ
INGV (Istituto Nazionale di Geofisica e Vulcanologia)


Seismic station: Honiara, Solomon Islands (HNR/IU network) | Distance from quake: 1058 km / 658 mi | Show on map | Station Info
Seismic station Honiara, Solomon Islands: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.02-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
Show more

2 aftershocks for this quake

For this earthquake, 2 aftershocks have been detected so far. The strongest was a magnitude 5.4 quake that hit 5 weeks after the mainshock in 18 km (11 mi) distance, in 50 km east of Santo, Santo/Malo, Vanuatu, on Wednesday, Aug 7, 2019 on 04:32 pm (Efate local time GMT +11).

What are aftershocks?

Larger earthquakes (above magnitude 5 or so) such as this one are usually followed by smaller ones known as aftershocks that occur in the same area during the days, weeks, months or even years after the main shock.
[More info]

What about this quake?

Based on its magnitude, the fault that was active during the quake likely ruptured beneath a surface of approx. 100 km2 (=39 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 17 km (11 mi).
[More info]

Recorded aftershocks, latest first (2 quakes)

Date and Time GMTMag
Aug 7, 2019 04:32 pm (Efate)
5 years ago - felt
5 weeks after main shock

119 km
18 km (11 mi)
SE of main shock
50 km E of Santo, Santo/Malo, VanuatuMore
Aug 2, 2019 01:19 pm (Efate)
5 years ago
4 weeks after main shock

111 km
17 km (10.7 mi)
NE of main shock
51 km E of Santo, Santo/Malo, VanuatuMore
Jul 2, 2019 04:13 am (Efate)
5 years ago - felt

115 km
0 km - This quakeCoral Sea, 36 km E of Santo, Santo/Malo, Vanuatu
Main Shock (this quake)

Map of aftershocks

Previous quakes in the same area of this earthquake

Map of earlier quakes in the area of this quake

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Map to embed or share

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