1755 Lisbon yirdquauk

The 1755 Lisbon yirdquauk, an aa kent as the Great Lisbon yirdquauk, occurred in the Kinrick o Portugal on Saturday, 1 November, the haly day o Aw Saunts' Day, at aroond 09:40 local time.[2] In combination wi subsequent fires an a tsunami, the yirdquauk awmaist totally destroyed Lisbon an adjynin auries. Seismologists the day estimate the Lisbon yirdquauk haed a magnitude in the range 8.5–9.0[3][4] on the moment magnitude scale, wi its epicentre in the Atlantic Ocean aboot 200 km (120 mi) wast-soothwast o Cape St. Vincent. Estimates place the daith towl in Lisbon alane atween 10,000 an 100,000 fowk,[5] makkin it ane o the deidliest yirdquauks in history.

1755 Lisbon yirdquauk
1755 Lisbon Earthquake Location.png
Date1 November 1755 (1755-11)
Magnitude8.5–9.0 Mw (est.)
Epicentre36°N 11°W / 36°N 11°W / 36; -11Coordinates: 36°N 11°W / 36°N 11°W / 36; -11
Aboot 200 km (120 mi) wast-soothwast o Cape St. Vincent
Auries affectitKinrick o Portugal, Kinrick o Spain, Kinrick o Morocco. The tsunami affectit Soothren Great Breetain an Ireland
Max. intensityXI (Extreme) [1]
Casualties10,000–100,000 daiths


  1. National Geophysical Data Center / World Data Service (NGDC/WDS), Significant Earthquake Database, National Geophysical Data Center, NOAA, doi:10.7289/V5TD9V7K
  2. Between History and Periodicity: Printed and Hand-Written News in 18th-Century Portugal
  3. Gutscher, M.-A.; Baptista M.A. & Miranda J.M.; Miranda, J.M. (2006). "The Gibraltar Arc seismogenic zone (part 2): Constraints on a shallow east dipping fault plane source for the 1755 Lisbon earthquake provided by tsunami modeling and seismic intensity". Tectonophysics. 426: 153–166. Bibcode:2006Tectp.426..153G. doi:10.1016/j.tecto.2006.02.025. Retrieved 20 March 2011.
  4. "Historic Earthquakes – Lisbon, Portugal." U.S. Geological Survey, October 26, 2009. {Estimate: 8.7}
  5. Pereira (2006), page 5.

Citit soorces