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Moderate mag. 5.3 earthquake - Coral Sea, 69 km north of Port-Olry, Sanma Province, Vanuatu, on Monday, Jan 18, 2021 at 6:17 pm (GMT +11)

Moderate mag. 5.3 earthquake - Coral Sea, 69 km north of Port-Olry, Sanma Province, Vanuatu, on Monday, Jan 18, 2021 at 6:17 pm (GMT +11) Moderate mag. 5.3 earthquake - Coral Sea, 69 km north of Port-Olry, Sanma Province, Vanuatu, on Monday, Jan 18, 2021 at 6:17 pm (GMT +11)

Moderate magnitude 5.3 earthquake at 158 km depth

18 Jan 07:28 UTC: First to report: GFZ after 11 minutes.
18 Jan 08:04: Magnitude recalculated from 5.1 to 5.3.
Update Mon, 18 Jan 2021, 07:33

Magnitude 5.1 earthquake strikes near Port-Olry, Sanma Province, Vanuatu

5.1 quake 18 Jan 6:17 pm (GMT +11)
5.1 quake 18 Jan 6:17 pm (GMT +11)
The German Research Centre for Geosciences (GFZ) reported a magnitude 5.1 quake in Vanuatu near Port-Olry, Sanma Province, only 16 minutes ago. The earthquake hit early evening on Monday 18 January 2021 at 6:17 pm local time at an intermediate to considerable depth of 158 km. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 5.3 earthquake.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Port-Olry (pop. 2,000) located 69 km from the epicenter, Sola (pop. 1,200) 74 km away, and Luganville (pop. 13,400) 121 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Earthquake details

Date & timeJan 18, 2021 07:17:17 UTC
Local time at epicenterMonday, Jan 18, 2021 at 6:17 pm (GMT +11)
Depth158.0 km
Epicenter latitude / longitude14.43°S / 167.17°E (Coral Sea, Vanuatu)
Antipode14.43°N / 12.83°W
Shaking intensityLight shaking
Felt1 report
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearest volcanoGaua (40 km / 25 mi)
Nearby towns and cities69 km (43 mi) N of Port-Olry (pop: 1,950) | Show on map | Quakes nearby
74 km (46 mi) SSW of Sola (pop: 1,170) | Show on map | Quakes nearby
121 km (75 mi) N of Santo (Luganville) (pop: 13,400) | Show on map | Quakes nearby
184 km (114 mi) N of Norsup (pop: 3,000) | Show on map | Quakes nearby
388 km (241 mi) NNW of Port Vila (pop: 35,900) | Show on map | Quakes nearby
132 km (82 mi) NW of Maewo Island (pop: 3,570) | Show on map | Quakes nearby
183 km (113 mi) NW of Pentecost Island (pop: 16,800) | Show on map | Quakes nearby
208 km (129 mi) N of Malakula Island (pop: 22,900) | Show on map | Quakes nearby
Weather at epicenter at time of quakeLight Rain 29.1°C (84 F), humidity: 75%, wind: 4 m/s (9 kts) from E
Estimated seismic energy released5.6 x 1012 joules (1.56 gigawatt hours, equivalent to 1344 tons of TNT) | about seismic energy
Show interactive Map
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Data for the same earthquake reported by different agencies

Info: 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.
5.3158 kmVanuatu IslandsGFZ
5.3161 km58 Km NNE of Port-Olry, VanuatuUSGS
5.3161 kmVanuatu IslandsGeoAu


Seismic station: Honiara, Solomon Islands (HNR/IU network) | Distance from quake: 962 km / 598 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
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User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Luganville / Light shaking (MMI IV)


[More info]

Recorded aftershocks, latest first (2 quakes)

Date and timeMag
Mar 4, 2021 16:53
1 year 48 weeks ago - felt

191 km
Coral Sea, 72 km SW of Sola, Torba, VanuatuMore
Mar 2, 2021 07:52
1 year 49 weeks ago

174 km
Coral Sea, 66 km SW of Sola, Torba, VanuatuMore

Earlier earthquakes in the same area

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