THEIR HOME JUST DAYS OUT FROM THE CHRISTMAS HOLIDAY, LESTER. >> EMILIE IKEDA, THANK YOU. >>> TO ICELAND AND THE SPECTACULAR AND POTENTIALLY DANGEROUS ERUPTION OF A VOLCANO THAT IS THREATENING COMMUNITIES NOT FAR FROM THE CAPITAL. MIGUEL ALMAGUER WITH THAT STORY. >> Reporter: THE INCREDIBLE FOUNTAINS OF FIRE GUSHED MORE THAN 300 FEET INTO THE AIR IGNITING THE NIGHT SKY IN ICELAND, ERUPTING MONDAY, THE ASTONISHING DISPLAY OF FIRE AND FURY CONTINUES TO POUR ACROSS THE SOUTHWESTERN END OF THE COUNTRY, AN HOUR OUTSIDE THE CAPITAL OF REYKJAVIK. >> IT'S ONCE IN A LIFETIME FOR US. >> Reporter: A 2.5-MILE-LONG FISH SURE IS CREATING A BOILING SEA OF LAVA THREATENING TO SLOWLY SPREAD CLOSER TO POPULATED REGIONS BUT FOR NOW THE BLANKET OF FIRE NOT YET CAUSING SERIOUS DAMAGE. FASCINATING TO SEE JUST NATURE IN ACTION. I JUST -- IT'S JUST LIKE SOMETHING FROM A MOVIE. >> Reporter: AS RESEARCHERS DESCEND CLOSER TO THE SPOUTS OF FIRE, THIS IS A MAGICAL SPECTACLE, EVEN IN THE COUNTRY NO STRANGER TO ERUPTIONS AFTER WEEKS OF SEISMIC ACTIVITY, NEARBY TOWNS WERE EVACUATED DAYS BEFORE LAVA EVEN SEEPED FROM THE EARTH'S FLORIDA. THE FLOES NOW SLOWING. >> VERY POWERFUL IN THE BEGINNING. IT'S GOING TO EXTRACT MAGMA VERY, VERY FAST AND THAT'S WHY IT'S GOING TO HAPPEN. >> Reporter: STILL POURING SMOKE INTO THE AIR, IT DOESN'T APPEAR THIS ERUPTION WILL CAUSE THE SAME HAVOC A DIFFERENT ICELANDIC VOLCANO DID IN 2010. THAT EXPLOSION OF FUMES AND ASH GROUNDED MUCH OF EUROPE'S AIR TRAVEL FOR A WEEK BUT TONIGHT SCIENTISTS WARN ERUPTIONS CAN BE AS UNPREDICTABLE AS