Sismo leggero mag. 3.1 - 7.2 km a est da Christchurch, Canterbury, Nuova Zelanda, mercoledì, 21 apr. 2021 03:21 -

Sismo leggero mag. 3.1 - 7.2 km a est da Christchurch, Canterbury, Nuova Zelanda, mercoledì, 21 apr. 2021 03:21

Sismo leggero magnitudine 3.1 at 5 km depth

21 Apr 03:23 UTC: Primo a segnalare: GEONET (NZ) dopo 1 minuto.
21 Apr 03:27: Magnitudine ricalcolata da 3.2 a 3.1. Profondità ricalcolata da 3.7 a 4.5 km (da 2.3 a 2.8 mi). Posizione dell'epicentro corretta di 1.9 km (1.2 mi) al ENE.
Data & ora: 21 Apr 2021 03:21:42 UTC -
Magnitudine: 3.1
Prof.: 4.5 km
Epicentro latitudine / longitudine: 43.51637°S / 172.72008°E (Christchurch City, Canterbury, Nuova Zelanda)
Antipode: 43.516°N / 7.28°W
Nearby towns and cities:
7 km ENE da Christchurch (pop: 363,900) --> Vedi sismi vicini
17 km SSE da Kaiapoi (pop: 10,200) --> Vedi sismi vicini
18 km ENE da Prebbleton (Región de Canterbury) (pop: 3,600) --> Vedi sismi vicini
26 km SSE da Rangiora (pop: 18,400) --> Vedi sismi vicini
28 km ENE da Rolleston (pop: 3,120) --> Vedi sismi vicini
40 km S da Amberley (pop: 1,110) --> Vedi sismi vicini
44 km NE da Leeston (pop: 1,270) --> Vedi sismi vicini
50 km ESE da Oxford (pop: 1,780) --> Vedi sismi vicini
90 km ENE da Distretto di Ashburton (Ashburton) (pop: 30,100) --> Vedi sismi vicini
300 km SSO da Wellington (pop: 381,900) --> Vedi sismi vicini
Fonte dati primaria: GEONET (NZ) (Earthquake Commission and Geological Survey, New Zealand)
Stima dell'energia sismica liberata: 2.8 x 109 joules (783 kWh, equivalent to 0.674 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.
3.14.5 kmNew ZealandGEONET (NZ)

User reports for this quake (7)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Aranui Christchurch / Moderate shaking (MMI V) / horizontal (sideways) swinging / 2-5 s : I was walking and I heard a bang/rumble and I almost lost my balance. | 3 users found this interesting.  
Christchurch, Canterbury (14.2 km W of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / very short : Made me look around. Very short. More noise that anything. Just to show that rock is still breaking under ground. We should always expect a big one here. (reported through our app)  
Christchurch / Weak shaking (MMI III) / single lateral shake / very short : sharp quick jolt  
SAINT MARTINS / Weak shaking (MMI III) / horizontal (sideways) swinging
Christchurch / Weak shaking (MMI III) / single vertical bump / very short : A sharp jolt  
New Brighton / Weak shaking (MMI III)
ARANUI, Christchurch, / Weak shaking (MMI III) / single vertical bump / 2-5 s : Just a huge bang sounded like a cannon. Not much shaking more an upward thrust  
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