Moderato terremoto magnitudine 5.9 - 255 km southwest da Apia, Tuamasaga, Samoa, domenica, 25 ottobre 2020 -

Moderato terremoto magnitudine 5.9 - 255 km southwest da Apia, Tuamasaga, Samoa, domenica, 25 ottobre 2020

Moderate magnitude 5.9 earthquake at 42 km depth

25 Oct 11:57 UTC: Primo a segnalare: GFZ dopo 9 minuti.
25 Oct 11:59: Magnitudine ricalcolata da 5.8 a 5.7. Posizione dell'epicentro corretta di 10.6 km (6.6 mi) al WNW.
25 Oct 14:14: Magnitudine ricalcolata da 5.7 a 5.9. Profondità ricalcolata da 10.0 a 42.0 km (da 6.2 a 26 mi). Posizione dell'epicentro corretta di 5.5 km (3.4 mi) al NO.
Data & ora: 25 Oct 2020 11:47:38 UTC -
Ora locale a epicentro: lunedì, 26 ott 2020 00:47 (GMT +13)
Magnitudine: 5.9
Profondità: 42.0 km
Epicentro latitudine / longitudine: 15.29°S / 173.6°W (Samoa)
Vulcano più vicino: West Mata (32 km / 20 mi)
Nearby towns and cities:
77 km NNE da Hihifo (Tonga) (pop: 815)
220 km SW da Vailoa (pop: 769)
223 km SSW da Asau (pop: 6,640)
234 km SW da Mulifanua (pop: 4,510)
242 km SSW da Safotu (pop: 1,210)
251 km SW da Afega (Malie) (pop: 1,900)
255 km SW da Apia (pop: 40,400)
267 km SW da Lufilufi (pop: 1,070)
Weather at epicenter at time of quake:
Overcast Clouds 25.4°C (78 F), humidity: 88%, wind: 8 m/s (15 kts) from ESE
Fonte dati primaria: GFZ
Stima dell'energia sismica liberata: 4.5 x 1013 joules (12.4 gigawatt hours, equivalent to 10676 tons of TNT or 0.7 atomic bombs!) 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
M 5.942 kmTonga Islands, SamoaGFZ
M 5.933 km85 Km NE of Hihifo, Tonga, SamoaUSGS
M 5.930 km72 Km NE of Hihifo, SamoaEMSC
M 6.073 kmTonga Islands, SamoaGeoAu
M 6.020 kmTonga Islands [Sea: Tonga], SamoaINGV
M 5.744 kmTonga Islands, SamoaBMKG

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Wallis (506.9 km WNW of epicenter) [Map] / Weak shaking (MMI III) / vertical swinging (up and down) / 15-20 s
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Aftershocks of the 5.9 quake 255 km southwest of Apia, Tuamasaga, Samoa, 26 Oct 12.47 am (GMT +13)

More info
Recorded aftershocks, latest first (1 quakes):

Earlier earthquakes in the same area since 1900

Moderate mag. 5.9 earthquake - 255 km southwest of Apia, Tuamasaga, Samoa, on Monday, 26 Oct 12.47 am (GMT +13)
    Hint: Click on Date/Time to show latest first
  • Date / time UTC
    | Mag |
    Profondità
    |
    Age
    |
    Distanza
    | Details
  • 19 Aug 2018 00:19
    | 8.1 |
    566km / 352mi
    |
    2 anni fa
    |
    584km / 363mi
    | Fiji Islands Region
  • 29 Sep 2009 17:48
    | 8.1 |
    18km / 11.2mi
    |
    11 anni fa
    |
    163km / 101mi
    | Samoa Islands Region
  • 30 Apr 1919 07:17
    | 8.1 |
    25km / 16mi
    |
    102 anni fa
    |
    360km / 223mi
    | Tonga Region
  • 03 May 2006 15:26
    | 8.0 |
    55km / 34mi
    |
    15 anni fa
    |
    547km / 340mi
    | Tonga
  • 26 Jun 1917 05:49
    | 8.0 |
    15km / 9.3mi
    |
    104 anni fa
    |
    61km / 38mi
    | Samoa Islands Region
  • 06 Sep 2018 15:49
    | 7.8 |
    640km / 398mi
    |
    2 anni fa
    |
    838km / 520mi
    | Fiji Islands
  • 14 Oct 1997 09:53
    | 7.8 |
    167km / 104mi
    |
    23 anni fa
    |
    828km / 514mi
    | South of the Fiji Islands (Tonga)
  • 26 Dec 1975 15:56
    | 7.8 |
    33km / 21mi
    |
    45 anni fa
    |
    163km / 101mi
    | Samoa Islands Region
  • 14 Dec 1950 01:52
    | 7.8 |
    216km / 134mi
    |
    70 anni fa
    |
    547km / 340mi
    | Tonga
  • 01 Jan 1919 03:00
    | 7.8 |
    485km / 301mi
    |
    102 anni fa
    |
    655km / 407mi
    | Fiji Region
  • Show all

Map of earlier quakes

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