Afresco destruído, de Cimbabue, na Basílica de São Francisco
1997 Umbria and Marche earthquake
The
1997 Umbria and Marche earthquake consisted of two
earthquakes that occurred in the regions of
Umbria and
Marche,
central Italy, in quick succession on the morning of September 26, 1997.
The first shock occurred at 2:33 am
CEST (0:33 UTC), rated 5.5 on the
Richter scale,
and the second – the main shock – occurred at 11:40 am CEST (9:40
UTC), rated 6.1 on the Richter scale. Their epicentre was in
Annifo.
There were several thousands of
foreshocks and
aftershocks
from May 1997 to April 1998, more than thirty of which had a Richter
magnitude more than 3.5. 11 people are known to have died following the
shocks of September 26, 1997.