Saturday, May 07, 2005
On this Day in 1976: BBC Remembers; Quake Devastates Northern Italy

The ANNOTICO Report

Italy's worst earthquake in 60 years (soon eclipsed by the 1980 Earthquake)
killed more than 550 people and left 80,000 homeless.

The following 12 months saw hundreds more tremors in the region, the
largest of which struck in September.

Altogether, the May and September quakes killed 951 people, injured 2,400
and left 45,000 homeless.

Damage was estimated at £3,000m. ($ 8 Trillion USD)

See at end: 'Italy's Earthquake History (1693-1997)',and 'Italy at the
Mercy of Fault Lines'



1976: Quake devastates northern Italy

BBC News
On This Day
May 7, 2005

Italy's worst ever earthquake has killed more than 550 people and left
80,000 homeless.

At least 1,000 people were injured when the quake struck the northern
region of Friuli last night, affecting 11 villages near the Austrian and
Yugoslav borders.

A government spokesman said as many as 1,000 may have been killed. It is
likely the death toll will rise as rescue workers find more bodies under
the rubble of fallen buildings.

The local military and Red Cross are on the scene. They are due to be
joined by rescue workers from Venice and Trieste.

Officials from the affected towns are continuing to appeal for medicine and
emergency lights for hospitals. American army units in the area have flown
in equipment and medical staff by helicopter and flown out the injured.

Moved to tears

President Giovanni Leone and the Interior Minister, Francesco Cossiga,
visited the earthquake zone by helicopter. They were moved to tears when
they spoke to the injured at a hospital in the small town of Maiano, 10
miles (16km) north-west of Udine.

The hill town of Gemona, further north, was almost flattened, killing at
least 100 people. A cemetery worker told reporters: "We just haven't got
enough coffins."

Inmates of the town's prison tried to scale the walls in their panic to get
out but were beaten back by machine-gun fire.

This last quake, which measured 6.5 on the Richter scale, was by far the
strongest of the 23 tremors which began on the night of 5 May. It could be
felt in France, West Germany, Austria, Czechoslovakia, Poland and
Yugoslavia.

Most of the 180,000 people who live in the Friuli region spent the night
outdoors for fear of further aftershocks...



IN CONTEXT:

The following 12 months saw hundreds more tremors in the region, the
largest of which struck in September.
Altogether, the May and September quakes killed 951 people, injured 2,400
and left 45,000 homeless.
Damage was estimated at £3,000m.

The Italian government came under strong criticism for allowing red tape to
hamper reconstruction of the area.

When Prime Minister Giulio Andreotti visited the region in September, he
was greeted with angry protests from refugees who had been living in tents
for four months.

Tent cities were - eventually - replaced with 20,000 prefabricated houses.

Using donations from the European Community, the government had spent £250m
by the end of 1976 to rebuild the infrastructure of the region and rehouse
its inhabitants.

Northern and central Italy are susceptible to earthquakes, with many minor
tremors occurring on a regular basis.

http://news.bbc.co.uk/onthisday/
hi/dates/stories/may/7/newsid_
2518000/2518519.stm



ITALY'S EARTHQUAKE HISTORY

BBC News
Thursday, 31 October, 2002

A series of quakes in 1997 left 40,000 homeless

The earthquake that has struck the village of San Giuliano di Puglia is the
latest in a long line of quakes to hit southern Italy:

1997 - More than 40,000 people lose their homes and 13 die in a series of
earthquakes in September. Four of the victims are killed as the roof of the
Basilica of St Francis in Assisi collapses. Priceless frescoes are also
damaged.

1980 - 2,735 people are killed and more than 7,500 injured in a quake
measuring at least 6.9 on the Richter scale. The epicentre is at Eboli,
about 80 kilometres (50 miles) south of Naples, and damage is widespread.
More than 1,500 people are reported missing.

1976 - An earthquake measuring 6.1 on the Richter scale rocks Friuli in
northeastern Italy, killing 976 people and leaving 70,000 others homeless.

1915 - An earthquake on 13 January shakes southern Italy. The town of
Avezzano at its epicentre is completely destroyed. The death toll is
estimated to be at least 30,000.

1908 - On 28 December Europe's most powerful earthquake strikes the Messina
Strait, which separates Sicily from Calabria.
The effects, combined with a large tsunami or tidal wave triggered by the
earthquake, are devastating.

Estimates of fatalities vary, but may be as high as 200,000.

The quake's magnitude is equal to 7.5 on the modern Richter scale.

1905 - An earthquake obliterates 25 villages in the Calabria region,
killing about 5,000 people.

1783 - Calabria on the southern tip of Italy is hit by an earthquake,
killing about 50,000.

1693 - Earthquakes hit southern Italy, killing an estimated 60,000 in
Catania, Sicily, and 93,000 in Naples.
"The crash of falling houses, the tottering of towers, and the groans of
the dying, all contributed to raise my terror and despair," writes one
eyewitness.

http://news.bbc.co.uk/1/hi/
world/europe/2381585.stm



ITALY AT THE MERCY OF FAULT LINES

BBC News
Thursday, 31 October, 2002

[Map on the web site illustrates North-South and East-West Faults]

Italy has a long history of earthquakes - experts say they have influenced
everything from the distribution of the population and adaptation of
architecture to the dialect spoken in different areas of the country.

Since the major earthquake of 1627, which devastated the central region of
Gargano, Italy has acquired a reputation as being one of the most
earthquake-prone countries in the world.

What makes it so, say experts, is the overall movement of tectonic plates
in Europe and Africa and the collision course they have been on, in
addition to the existence of well-defined fault-lines and geological
movements criss-crossing the area.

They also point out that, with the exception of a line running across the
border into Slovenia in the north, Italy's seismic activity is generally
confined to the Italian peninsula and its islands.

Fault lines

Thursday's earthquake had its epicentre near the central town of
Casacalenda in the province of Campobasso.

It finds itself on the route of an East-West fault, which is a result of
tectonic movements underneath the Adriatic.

Italian faults are not easy to identify, they are hidden and many are
difficult to see, says
Gianluca Valensise, Italian Institute of Geophysics and Vulcanology.

"The 1980 Irpinia earthquake [which killed over 2,500 people in the Naples
area] is quite different from Thursday's," said Dr Roger Musson, head of
seismic hazard at the British Geological Survey.

As a result of the movement of the European tectonic plate in a
south-easterly direction, the Earth's crust has broken into
smaller pieces, and the Adriatic Sea is sitting in one of those rocks.

"In the course of their movement, some of those rocks are bending and this
creates faults with an east-westerly direction that caused Thursday's
earthquake," Dr Musson told the BBC.

But the largest Italian earthquakes tend to align along the crest of the
central and southern Apennines, according to professor Gianluca Valensise
of the Italian Institute of Geophysics and Vulcanology.

There is an alignment - running from Genoa in the north to Messina in the
south - that has been responsible for major earthquakes, Professor
Valensise told BBC News Online, and all major tremors will sooner or later
concentrate along that line.

"However, while seismicity concentrates there, potentially active
lineaments occur elsewhere."

Hard to predict

"But we learn of earthquakes after they have happened. Italian faults are
not easy to identify, they are hidden and many are difficult to see."

Seismic activity in Sicily, Professor Valensise said, was particularly hard
to predict - it could not be explained by observing the Apenninic belt.

The Italian Government has declared a state of emergency in parts of the
island, after a series of earthquakes accompanying the eruption of Mount
Etna forced about 1,000 people flee their homes.

But Professor Valensise said the Campobasso earthquake was unlikely to have
been caused by the Etna eruptions - "the two are too far away" - even
though a volcano is caused by the same types of fractures in the Earth's
crust as those bringing about earthquakes.

http://news.bbc.co.uk/1/hi/
world/europe/2383225.stm