Sismo debile mag. 3.0 - 70 km a sud ovest da Hilo, Contea di Hawaii County, Stati Uniti, domenica, 21 febbraio 2021 -
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Sismo debile magnitudine 3.0 at 34 km depth
21 Feb 03:37 UTC: Primo a segnalare: USGS dopo 4 minuti.
21 Feb 03:40: Magnitudine ricalcolata da 3.6 a 3.2.
21 Feb 03:55: Magnitudine ricalcolata da 3.2 a 3.0.
21 Feb 03:40: Magnitudine ricalcolata da 3.6 a 3.2.
21 Feb 03:55: Magnitudine ricalcolata da 3.2 a 3.0.
Update Sun, 21 Feb 2021, 03:42
Small 3.2 quake hits near Hilo, Hawaii County, Hawaii, USA3.2 quake 20 Feb 5:33 pm (GMT -10)
An earthquake of magnitude 3.2 occurred in the afternoon on Saturday 20 February 2021 at 5:33 pm 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 moderately shallow depth of 21 miles. 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 as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Pāhala (pop. 1,400) located 3 miles from the epicenter. In Hawaiian Ocean View (pop. 4,400, 21 miles away), Volcano Village (pop. 2,600, 23 miles away), Holualoa (pop. 8,500, 40 miles away), Hawaiian Paradise Park (pop. 11,400, 42 miles away), Hilo (pop. 43,300, 43 miles away), Kalaoa (pop. 9,600, 46 miles away), and Kalaoa (pop. 9,600, 46 miles away), the quake was probably not felt.
According to preliminary data, the quake was located at a moderately shallow depth of 21 miles. 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 as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Pāhala (pop. 1,400) located 3 miles from the epicenter. In Hawaiian Ocean View (pop. 4,400, 21 miles away), Volcano Village (pop. 2,600, 23 miles away), Holualoa (pop. 8,500, 40 miles away), Hawaiian Paradise Park (pop. 11,400, 42 miles away), Hilo (pop. 43,300, 43 miles away), Kalaoa (pop. 9,600, 46 miles away), and Kalaoa (pop. 9,600, 46 miles away), the quake was probably not felt.
Earthquake data:
Data & ora: 21 Feb 2021 03:33:32 UTC -
Ora locale a epicentro: sabato, 20 feb 2021 17:33 (GMT -10)
Magnitudine: 3
Profondità: 34.0 km
Epicentro latitudine / longitudine: 19.23783°N / 155.50133°W
(Contea di Hawaii, Hawaii, Stati Uniti)Vulcano più vicino: Mauna Loa (29 km / 18 mi)
Nearby towns and cities:
5 km NNO da Pāhala (pop: 1,360) --> Vedi sismi vicini
33 km NE da Hawaiian Ocean View (pop: 4,440) --> Vedi sismi vicini
36 km SO da Volcano Village (pop: 2,580) --> Vedi sismi vicini
45 km ESE da Honaunau-Napoopoo (pop: 2,570) --> Vedi sismi vicini
63 km SE da Holualoa (Hawaii County) (pop: 8,540) --> Vedi sismi vicini
68 km SO da Hawaiian Paradise Park (Hawaii County) (pop: 11,400) --> Vedi sismi vicini
70 km SO da Hilo (pop: 43,300) --> Vedi sismi vicini
74 km SE da Kalaoa (Hawaii County) (pop: 9,640) --> Vedi sismi vicini
325 km SE da East Honolulu (pop: 49,900) --> Vedi sismi vicini
337 km SE da Honolulu (pop: 371,700) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Overcast Clouds
16.4°C (61 F), humidity: 97%, wind: 1 m/s (2 kts) from S
Fonte dati primaria: USGS (United States Geological Survey)Overcast Clouds
16.4°C (61 F), humidity: 97%, wind: 1 m/s (2 kts) from SStima dell'energia sismica liberata: 2 x 109 joules (554 kilowatt hours, equivalent to 0.477 tons of TNT) More info
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.
| Magnitudine | Profondità | Ubicazione | Fonte |
| 3.0 | 34 km | 4 Km NNW of Pāhala, Hawaii, USA | USGS |
| 3.6 | 37 km | ISLAND OF HAWAII, HAWAII, USA | EMSC |
User reports for this quake (1)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
