UPDATE 7-Greek lawmakers approve austerity bill as Athens burns

* National hero says Greeks are rising up

* Petrol bombs create wall of fire

* Budget cuts to total 3.3 billion euros ($4.35 bln

By Harry Papachristou and Yannis Behrakis

ATHENS, Feb 13 The Greek parliament approved a deeply unpopular austerity bill to secure a second EU/IMF bailout and avoid national bankruptcy, as buildings burned across central Athens and violence spread around the country.

Cinemas, cafes, shops and banks were set ablaze in central Athens as black-masked protesters fought riot police outside parliament.

State television reported the violence spread to the tourist islands of Corfu and Crete, the northern city of Thessaloniki and towns in central Greece. Shops were looted in the capital where police said 34 buildings were ablaze.

Prime Minister Lucas Papademos denounced the worst breakdown of order since 2008 when violence gripped Greece for weeks after police shot a 15-year-old schoolboy.

"Vandalism, violence and destruction have no place in a democratic country and won't be tolerated," he told parliament as it prepared to vote on the new 130 billion euro bailout to save Greece from a chaotic bankruptcy.

Papademos told lawmakers shortly before they voted that they would be gravely mistaken if they rejected the package that demands deep pay, pension and job cuts, as this would threaten Greece's place in the European mainstream.

"It would be a huge historical injustice if the country from which European culture sprang ... reached bankruptcy and was led, due to one more mistake, to national isolation and national despair," he said.

The chaos outside parliament showed how tough it will be to implement the measures. A Reuters photographer saw buildings in Athens engulfed in flames and huge plumes of smoke rose in the night sky.

"We are facing destruction. Our country, our home, has become ripe for burning, the centre of Athens is in flames. We cannot allow populism to burn our country down," conservative lawmaker Costis Hatzidakis told parliament.

The air in Syntagma Square outside parliament was thick with tear gas as riot police fought running battles with youths who smashed marble balustrades and hurled stones and petrol bombs.

Terrified Greeks and tourists fled the rock-strewn streets and the clouds of stinging gas, cramming into hotel lobbies for shelter as lines of riot police struggled to contain the mayhem.

State NET television reported that trouble had also broken out in Heraklion, capital of Crete, as well as the towns of Volos and Agrinio in central Greece.

On the streets many businesses were ablaze, including the neo-classical home to the Attikon cinema dating from 1870 and a building housing the Asty, an underground cinema used by the Gestapo during World War Two as a torture chamber.

As fighting raged for hours, protesters threw bombs made from gas canisters as riot police advanced across the square on the crowds, firing tear gas and stun grenades. Loud booms from the protests could be heard inside parliament.

Before the vote, Finance Minister Evangelos Venizelos told parliament that the alternative to the international bailout - bankruptcy and a departure from the euro zone - would be far worse for Greeks.

"The choice is not between sacrifice and no sacrifices at all, but between sacrifices and unimaginably harsher ones," he told a stormy debate expected to run well into the night.

Greece needs the international funds before March 20 to meet debt repayments of 14.5 billion euros, or suffer a chaotic default which could shake the entire euro zone.

The EU and IMF say they have had enough of broken promises and that the funds will be released only with the clear commitment of Greek political leaders that they will implement the reforms whoever wins an election potentially in April.

Euro zone paymaster Germany ratcheted up the pressure on Sunday. "The promises from Greece aren't enough for us any more," German Finance Minister Wolfgang Schaeuble said in an interview published on Sunday in Welt am Sonntag newspaper.

"Greece needs to do its own homework to become competitive, whether that happens in conjunction with a new rescue programme or by another route that we actually don't want to take," he said.

When asked if that other route meant Greece quitting the euro zone, Schaeuble said: "That is all in the hands of the Greeks themselves. But even in the event (Greece leaves the euro zone), which almost no one assumes will happen, they will still remain part of Europe."

The bill sets out 3.3 billion euros ($4.35 billion) in wage, pension and job cuts for this year alone.

It also provides for a bond swap to ease Greece's debt burden by cutting the real value of private-sector investors' bond holdings by some 70 percent. Greece would have missed a Feb. 17 deadline to offer a debt "haircut" to private bondholders if the vote had not been passed.