The great Lisbon earthquake Nov.1,1755 devastated the city and Portuguese coastlines down to Morocco.Many details of the event are typical signs of chaotic terrane caused by an antipodal impact.A faint but fresh-looki...The great Lisbon earthquake Nov.1,1755 devastated the city and Portuguese coastlines down to Morocco.Many details of the event are typical signs of chaotic terrane caused by an antipodal impact.A faint but fresh-looking antipodal impact structure centered at 35°39′S,168°26′E is found in the Tasman Sea,or about 405 km WSW(West-Southwest)of Cape Reinga,North Island,NZ(North Island).By conventional geological methods,the epicenter has been inferred to be on the bottom of the Atlantic Ocean,in an area known as the Horseshoe Plain WSW of Cape St.Vincent,Portugal,at a distance of about 200 km from the cape,a round figure estimate.The impact antipode at 35°39′N,11°34′W also is located in the Horseshoe Plain at 277 km WSW of Cape St.Vincent,the implied antipodal impact quake epicenter.展开更多
文摘The great Lisbon earthquake Nov.1,1755 devastated the city and Portuguese coastlines down to Morocco.Many details of the event are typical signs of chaotic terrane caused by an antipodal impact.A faint but fresh-looking antipodal impact structure centered at 35°39′S,168°26′E is found in the Tasman Sea,or about 405 km WSW(West-Southwest)of Cape Reinga,North Island,NZ(North Island).By conventional geological methods,the epicenter has been inferred to be on the bottom of the Atlantic Ocean,in an area known as the Horseshoe Plain WSW of Cape St.Vincent,Portugal,at a distance of about 200 km from the cape,a round figure estimate.The impact antipode at 35°39′N,11°34′W also is located in the Horseshoe Plain at 277 km WSW of Cape St.Vincent,the implied antipodal impact quake epicenter.
