<p><br /> One of the world's most active volcanoes has erupted in a spectacular fashion.<br /> </p><p><br /> Scientists say a new vent had opened at the Pu'u O'o crater in Hawaii which caused lava to spray up to 65 ft high into the air on Sunday.<br /> </p><p><br /> The Hawaiian Volcano Observatory said the fissure eruption was spotted shortly after the floor at the Pu'u O'o collapsed on Saturday afternoon.<br /> </p><p><br /> The activity has prompted the observatory to update the eruption watch to a warning, meaning a "hazardous eruption is imminent, underway, or suspected."<br /> </p><p><br /> It occurred along the middle of Kilauea Volcano's east rift zone.<br /> </p><p><br /> Kilauea has been in constant eruption since January 3, 1983.<br /> </p><p><br /> Officials said the fissure has expanded to about 535 yards long and scientists are hiking into the remote area to observe the fissure and take readings.<br /> </p>
