HONOLULU -- Honolulu officials said a Fourth of July wildfire in Kalama Valley had threatened homes valued at $50 million before being brought under control.

The blaze that forced the temporary evacuation of about 80 households and covered 200 acres was ignited by an illegal, professional-grade aerial firework.

Officials said firefighters responded to 51 calls on the Fourth of July, compared to a daily average of about eight. They said fireworks were the likely cause of 10 additional fires Monday.

The Honolulu City Council is set to discuss the future of fireworks at a July 14 meeting. Gov. Linda Lingle has signed into law a bill that allows the individual counties to enact stricter fireworks laws.

Firefighters were focusing their efforts on Kamehame Ridge in Kalama Valley on Monday, which was believed to be a continuation of the fire which forced residential evacuations Sunday evening.

Authorities allowed residents of Kalama Valley back into their homes after a wildfire briefly threatened the area east of Honolulu.

Honolulu police said all roads in the valley were reopened Monday morning.

The fire started at about 9:30 p.m. Sunday at the base of Kamehame Ridge and was fueled by strong winds and dry conditions.

Residents at the top of the ridge were told to evacuate, and the Red Cross set up an emergency shelter.

Firefighters worked through the night to control the blaze, which didn't cause any injuries or damage to homes.

The cause of the blaze remains under investigation.

The flames burned across a football field, but there were no immediate reports of damage to buildings.

(See the video captured by a u local member showing the ridge engulfed by flames.)

Some neighbors said they heard aerial fireworks shortly before the fire.

HFD Kept Busy On Holiday Weekend

Honolulu firefighters were also kept busy in Kapolei, where a brush fire reignited near Kalaeloa Boulevard.

On Saturday night, firefighters battled the blaze and even evacuated nearby homes for about 30 minutes. They extinguished the fire, but officials said it appeared a burning ember caused the same fire to flare up again on Sunday night.

The fire spread near Ko Olina, but it did not threaten any homes or structures, HFD said.

The fire scorched several hundred acres, officials said. A cause has not been determined.

The Honolulu Fire Department said there were 12 brush fires over the weekend on Oahu. Four of those are believed to be fireworks related, officials said.

Overall, HFD said there were 26 fires for the holiday, with fireworks likely playing a role in eight.