1980 Azores Islands earthquake
Striking the Autonomous Region of Azores on 1 January, the 1980 Azores Island earthquake killed 73 people and injured over 400, causing severe damage on the islands of Terceira and São Jorge. Measuring 6.9 on the moment magnitude scale, it also shook the islands of Pico and Faial, and resulted from a strike slip fracture, typical of other historical Azorean earthquakes.
Terceira Graciosa São Jorge | |
UTC time | 1980-01-01 16:42:42 |
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ISC event | 652123 |
USGS-ANSS | ComCat |
Local date | 1 January 1980 |
Local time | 15:42:42 |
Magnitude | 6.9 Mw(ISC-GEM) |
Depth | 10 kilometres (6 mi) |
Epicenter | 50 km West of Angra do Heroísmo 38.81°N 27.78°W |
Type | Strike-slip |
Areas affected | Portugal Azores |
Max. intensity | MMI VIII (Severe)–MMI IX (Violent) |
Tsunami | A small tsunami was registered in Angra do Heroismo |
Casualties | 73 dead, 400 injured |
In response to the earthquake, Portuguese president António Ramalho Eanes announced three days of national mourning, while relief efforts, initiated by agents of the local Air Force, were soon accompanied by government-supported agencies.
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