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Terremoto moderato mag. 4.9 - Coral Sea, 83 km a nord ovest da Port Vila, Shefa Province, Vanuatu, sabato, 4 set 2021 18:53 (GMT +11) -

Terremoto moderato mag. 4.9 - Coral Sea, 83 km a nord ovest da Port Vila, Shefa Province, Vanuatu, sabato,  4 set 2021 18:53 (GMT +11) Terremoto moderato mag. 4.9 - Coral Sea, 83 km a nord ovest da Port Vila, Shefa Province, Vanuatu, sabato,  4 set 2021 18:53 (GMT +11)

Terremoto moderato magnitudine 4.9 a 10 km di profondità

4 Sep 08:11 UTC: Primo a segnalare: USGS dopo 18 minuti.
Update Sat, 4 Sep 2021, 08:18

Moderate magnitude 4.9 quake hits 83 km northwest of Port Vila, Vanuatu early evening

4.9 quake 4 Sep 6:53 pm (GMT +11)
4.9 quake 4 Sep 6:53 pm (GMT +11)
A magnitude 4.9 earthquake near Port Vila, Shefa Province, Vanuatu, was reported only 24 minutes ago by the United States Geological Survey, considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at a shallow depth of 10 km beneath the epicenter early evening on Saturday, September 4th, 2021, at 6:53 pm local time. 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.
Our monitoring service identified a second report from Indonesia's Meteorology, Climatology, and Geophysical Agency which listed the quake at magnitude 5.1. Other agencies reporting the same quake include Geoscience Australia (GeoAu) at magnitude 5.1, and the European-Mediterranean Seismological Centre (EMSC) at magnitude 5.1.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Port Vila (pop. 35,900) located 83 km from the epicenter.
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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Dettagli del sismo

Data e ora4 Sep 2021 07:53:47 UTC -
Ora locale all'epicentrosabato, 4 set 2021 18:53 (GMT +11)
Prof.10.0 km
Epicentro latitudine / longitudine17.2401°S / 167.7321°E (Coral Sea, Vanuatu)
Antipode17.24°N / 12.268°W
Intensità di scuotimentoScuotimento debole
Sentito1 rapporto
Fonte dati primariaUSGS (United States Geological Survey)
Vulcano più vicinoNorth Vate (71 km / 44 mi)
Luoghi vicini83 km NO da Port Vila (pop: 35,900) | Mappa | Sismi nelle vicinanze
135 km SSE da Norsup (pop: 3,000) | Mappa | Sismi nelle vicinanze
201 km SSE da Santo (Luganville) (pop: 13,400) | Mappa | Sismi nelle vicinanze
254 km SSE da Port-Olry (pop: 1,950) | Mappa | Sismi nelle vicinanze
304 km NNO da Isangel (pop: 1,440) | Mappa | Sismi nelle vicinanze
375 km S da Sola (pop: 1,170) | Mappa | Sismi nelle vicinanze
400 km NNE da Fayaoué (Nuova Caledonia) (pop: 4,410) | Mappa | Sismi nelle vicinanze
102 km SSO da Paama Island (pop: 1,630) | Mappa | Sismi nelle vicinanze
111 km SSE da Malakula Island (pop: 22,900) | Mappa | Sismi nelle vicinanze
Meteo all'epicentro al momento del sismoOvercast Clouds 24.2°C (75 F), humidity: 67%, wind: 5 m/s (10 kts) from SE
Energia sismica rilasciata stimata1.4 x 1012 joules (392 MWh, equivalent to 338 tons of TNT) | about seismic energy
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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.
4.910 km82 Km NW of Port-Vila, VanuatuUSGS
5.136 kmVanuatu IslandsGeoAu
5.533 kmVanuatu IslandsBMKG
4.939 kmVanuatu IslandsGFZ


Seismic station: Monasavu, Fiji (MSVF/II network) | Distance from quake: 1096 km / 681 mi | Show on map | Station Info
Seismic station Monasavu, Fiji: 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. 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.
PortVila / Weak shaking (MMI III) / 5-10 s

Earlier earthquakes in the same area

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