Sismo leggero mag. 3.1 - 67 km a sud ovest da Hilo, Contea di Hawaii County, Stati Uniti, giovedí, 01 aprile 2021 -

Sismo leggero mag. 3.1 - 67 km a sud ovest da Hilo, Contea di Hawaii County, Stati Uniti, giovedí, 01 aprile 2021

Sismo leggero magnitudine 3.1 at 1 km depth

1 Apr 11:06 UTC: Primo a segnalare: USGS dopo 4 minuti.
1 Apr 11:07: Magnitudine ricalcolata da 3.5 a 3.3.
1 Apr 11:40: Magnitudine ricalcolata da 3.3 a 3.1. Profondità ricalcolata da 1.2 a 0.9 km (da 0.7 a 0.6 mi). Posizione dell'epicentro corretta di 1 km (0.6 mi) al O.
Update Thu, 1 Apr 2021, 11:12
Small magnitude 3.3 earthquake 41 miles southwest of Hilo, Hawaii, United States
3.3 quake 1 Apr 1:02 am (GMT -10)
3.3 quake 1 Apr 1:02 am (GMT -10)
An earthquake of magnitude 3.3 occurred early morning on Thursday 1 April 2021 at 1:02 am local time near Hilo, Hawaii County, Hawaii, USA, as reported by the United States Geological Survey.
According to preliminary data, the quake was located at a very shallow depth of 0.7 miles. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. 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 the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 3.2.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Pāhala (pop. 1,400) located 16 miles from the epicenter, Honaunau-Napoopoo (pop. 2,600) 17 miles away, Captain Cook (pop. 3,400) 21 miles away, Kealakekua (pop. 2,000) 22 miles away, Honalo (pop. 2,400) 23 miles away, and Hawaiian Ocean View (pop. 4,400) 25 miles away. In Holualoa (pop. 8,500, 26 miles away), and Hilo (pop. 43,300, 41 miles away), the quake was probably not felt.
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Earthquake data:

Data & ora: 1 Apr 2021 11:02:08 UTC -
Ora locale a epicentro: Thursday, 1 Apr 2021 01:02 (GMT -10)
Magnitudine: 3.1
Profondità: 0.9 km
Epicentro latitudine / longitudine: 19.40333°N / 155.624°W (Contea di Hawaii, Hawaii, Stati Uniti)
Vulcano più vicino: Maunaloa (8 km / 5 mi)
Nearby towns and cities:
26 km ESE da Honaunau-Napoopoo (pop: 2,570) --> Vedi sismi vicini
27 km NO da Pāhala (pop: 1,360) --> Vedi sismi vicini
36 km ESE da Honalo (pop: 2,420) --> Vedi sismi vicini
40 km NNE da Hawaiian Ocean View (pop: 4,440) --> Vedi sismi vicini
41 km O da Volcano Village (pop: 2,580) --> Vedi sismi vicini
52 km SE da Kalaoa (Hawaii County) (pop: 9,640) --> Vedi sismi vicini
67 km OSO da Hilo (pop: 43,300) --> Vedi sismi vicini
71 km OSO da Hawaiian Paradise Park (Hawaii County) (pop: 11,400) --> Vedi sismi vicini
303 km SE da East Honolulu (pop: 49,900) --> Vedi sismi vicini
315 km SE da Honolulu (pop: 371,700) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Overcast Clouds 17.2°C (63 F), humidity: 85%, wind: 1 m/s (2 kts) from N
Fonte dati primaria: USGS (United States Geological Survey)
Stima dell'energia sismica liberata: 2.8 x 109 joules (783 kilowatt hours, 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.
MagnitudineProfonditàUbicazioneFonte
3.10.9 km26 Km NNW of Pāhala, Hawaii, USAUSGS
3.35 kmISLAND OF HAWAII, HAWAII, USAEMSC

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Hilo, hi / Very weak shaking (MMI II) / single lateral shake : Single shake woke me up  
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