Terremoto moderato mag. 4.2 - 63 km a sud da Hokitika, Westland District, West Coast, Nuova Zelanda, 5 May 11:55 pm (GMT +12) -

Terremoto moderato mag. 4.2 - 63 km a sud da Hokitika, Westland District, West Coast, Nuova Zelanda, 5 May 11:55 pm (GMT +12)

Terremoto moderato magnitudine 4.2 at 5 km depth

5 May 11:58 UTC: Primo a segnalare: GEONET (NZ) dopo 2 minuti.
5 May 12:01: Magnitudine ricalcolata da 4.1 a 4.2. Posizione dell'epicentro corretta di 1.8 km (1.1 mi) al SO.
Update Wed, 5 May 2021, 12:03
Magnitude 4.2 earthquake strikes near Hokitika, Westland District, West Coast, New Zealand
4.2 quake 5 May 11:55 pm (GMT +12)
4.2 quake 5 May 11:55 pm (GMT +12)
New Zealand's Earthquake Commission and Geological Survey (GeoNet) reported a magnitude 4.2 quake in New Zealand near Hokitika, Westland District, West Coast, only 7 minutes ago. The earthquake hit late at night on Wednesday 5 May 2021 at 11:55 pm local time at a very shallow depth of 5 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 4.1 earthquake.
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 Harihari (pop. 350) located 26 km from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Hokitika (pop. 3,400) located 63 km from the epicenter, Methven (pop. 1,200) 78 km away, Greymouth (pop. 9,400) 95 km away, Greymouth (pop. 9,400) 95 km away, Geraldine (pop. 2,300) 97 km away, and Ashburton (pop. 30,100) 101 km away.
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Earthquake data

Data & ora: 5 May 2021 11:55:38 UTC -
Ora locale a epicentro: 5 May 11:55 pm (GMT +12)
Magnitudine: 4.2
Prof.: 5.0 km
Epicentro latitudine / longitudine: 43.27179°S / 170.82729°E (Westland District, West Coast, Nuova Zelanda)
Antipode: 43.272°N / 9.173°W
Nearby towns and cities:
26 km ESE da Harihari (pop: 345) --> Vedi sismi vicini
63 km S da Hokitika (pop: 3,400) --> Vedi sismi vicini
78 km ONO da Methven (Canterbury) (pop: 1,240) --> Vedi sismi vicini
95 km SSO da Greymouth (Grey District) (pop: 9,420) --> Vedi sismi vicini
97 km NNO da Geraldine (Canterbury) (pop: 2,300) --> Vedi sismi vicini
101 km NO da Distretto di Ashburton (Ashburton, Canterbury) (pop: 30,100) --> Vedi sismi vicini
130 km NNO da Distretto di Timaru (Timaru, Canterbury) (pop: 28,000) --> Vedi sismi vicini
142 km O da Rangiora (Canterbury) (pop: 18,400) --> Vedi sismi vicini
149 km O da Christchurch (Canterbury) (pop: 363,900) --> Vedi sismi vicini
393 km SO da Wellington (pop: 381,900) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Overcast Clouds 3.8°C (39 F), humidity: 94%, wind: 1 m/s (3 kts) from WNW
Fonte dati primaria: GEONET (NZ) (Earthquake Commission and Geological Survey, New Zealand)
Stima dell'energia sismica liberata: 1.3 x 1011 joules (35 MWh, equivalent to 30.1 tons of TNT) More info
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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.
4.25 kmNew ZealandGEONET (NZ)

User reports for this quake (5)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Whataroa, Westland District, West Coast (14.9 km SW of epicenter) [Map] / Very weak shaking (MMI II) / complex rolling (tilting in multiple directions) : Was loud rumbling noise then 3 small jerks close together.  
mokihinui / not felt
hokitika / Weak shaking (MMI III) / 5-10 s
Hari Hari / Weak shaking (MMI III) / rattling, vibrating / very short : very noisy roaring, thump  
Auckland / Weak shaking (MMI III) / single vertical bump / 1-2 s
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