UPDATE: 'Horno' fire on Camp Pendleton has consumed 1,800 acres; now 80 percent contained

UPDATE: Saturday, August 15, 12:45 p.m.

CAMP PENDLETON - A fire that has blackened about 1,800 open acres on Camp Pendleton was 80 percent contained today, Saturday, August 15, authorities said.

It's not known why the so-called Horno Fire broke out about 1 p.m. Thursday near the intersection of Horno Canyon and Basilone roads, Camp Pendleton spokesman Sgt. Christopher Duncan said.

The fast-moving blaze had charred about 600 acres by about 2:30 p.m., according to CalFire, which was assisting Camp Pendleton firefighters.

No structures were threatened, authorities said.

According to the most rece...