Review of the 1755 Lisbon Earthquake Based on Recent Analyses of Historical Observations - Historical Seismology: Interdisciplinary Studies of Past and Recent Earthquakes - page 258

Ta b l e 3 Other events in Europe an USA in the aftermath of the 1755 earthquake (after Braga 1989)
Year

Day/Month Hour Location

1755 9/December Switzerland

1756 18/February 7-8 Paris, Luxembourg

8 Cologne, Bonn, Versailles, Brussels, Amsterdam, etc.

9 Liege

morning The Hague

1756 17/August 11.30 Padova

1756 28/August 5.30 France

1757 8/February 6 Parma

1758 3/December Night Constantinople

1758 6/December Afternoon Kola (Laponia)

1759 18/March Listoia, Toscara

1759 10/August 21.15 Bordeaux

1759 23/August 2 Cologne, Denmark

3 Breda

1760 9/November 8 Boston, USA

1761 31/March 12 Bayona, Spain

12.30 Cork, Ireland

14.30 Lake Ness, Scotland

1761 1/April 13 Bordeaux

1761 20/April 13.15 Barcelona

1761 20/May 13 Rossilon

1761 10/June Pesaro

1761 20/June Night Florence,Bagno, Romania

1761 9/December 20 Barnau, Siberia

1762 18/October Roma

1763 11/July Komore

1765 13/January Prand, Austria

of shaking (Table 3). The most important were in Switzerland (Dec 9, 1755),
Luxembourg (Feb 18, 1756) and Cologne/Denmark (Dec 23, 1759).

Interesting to note that the 1755 earthquake with the high magnitude we attribute,
not only released more energy than the total of all earthquakes occurring in Europe
in the first two millennium AD, but was followed during the next years by a set of
important events throughout Europe.
In what concern foreshocks, besides the note already mentioned on anomalous
tide behaviour, the only existing reference is the one of a small seismic movement
felt in Villablino in the province of Lion in Spain (near Galiza) on October 31/1755
between 22 and 23 h or at 2 h:00 (Anonymous 1756). Some precursory phenomena
of 1755 event may have take place 3-7 days before in several locations mainly
in the centre-north littoral. Muddy waters, smell to sulphur, and even anomalous
animal behaviour and a crack in the soil were part of those manifestations (Moreira
et al. 1989).
But in the years prior to 1755 there were plenty of seismic activity such as
in Valencia-Murcia, Spain in May 5, 1748, Madeira Island in May 31, 1748, in
Africa 1751, in Belgrade in October 30, 1752, in Tunes in December, 9, 1752 and in