Terremoto forte mag. 5.4 - South Pacific Ocean, 235 km a sud ovest da Apia, Tuamasaga, Samoa, sabato, 13 maggio 1978
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Terremoto forte magnitudine 5.4 at 33 km depth
Data & ora: 13 May 1978 16:41:12 UTC
Magnitudine: 5.4
Profondità: 33.0 km
Epicentro latitudine / longitudine: 15.244°S / 173.387°W

Vulcano più vicino: West Mata (42 km / 26 mi)
Nearby towns and cities:
202 km SO da Vailoa (pop: 769) --> Vedi sismi vicini
208 km SSO da Asau (pop: 6,640) --> Vedi sismi vicini
214 km SO da Mulifanua (pop: 4,510) --> Vedi sismi vicini
226 km SSO da Safotu (pop: 1,210) --> Vedi sismi vicini
231 km SO da Afega (Malie) (pop: 1,900) --> Vedi sismi vicini
235 km SO da Apia (pop: 40,400) --> Vedi sismi vicini
245 km SO da Lufilufi (pop: 1,070) --> Vedi sismi vicini
308 km OSO da Pago Pago (Ma'Oputasi, Samoa americane) (pop: 11,500) --> Vedi sismi vicini
371 km SE da Mata-Utu (Hahake, Wallis e Futuna) (pop: 1,200) --> Vedi sismi vicini
562 km NO da Alofi (Niue) (pop: 624) --> Vedi sismi vicini
Fonte dati primaria: USGS (United States Geological Survey)
Stima dell'energia sismica liberata: 7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) More info
Data for the same earthquake reported by different agencies
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Magnitudine | Profondità | Ubicazione | Fonte |
M 5.4 | 33 km | Tonga (Samoa) | USGS |
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Recorded aftershocks, latest first (1 quakes):- 11 Jun 1978 14:27 UTC| M 6.2 |33 km (20.5 mi) depth|19 km (12 mi) distance| USGS | Strong mag. 6.2 earthquake - South Pacific Ocean, 250 km southwest of Apia, Tuamasaga, Samoa, on Sunday, 11 June 1978 at 14:27 (GMT)
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