Authorities were assessing the damage after firefighters battled flames fanned by strong winds through the night and lightning strikes sparked new blazes in New South Wales and Victoria.
Police were unable to say if the blast in the city of Blankenburg was deliberately set off or if it was an accident.
About 50,000 people were ordered to flee their homes in Sonoma County, north of San Francisco, as the Kincade Fire spread to cover 25,455 acres (10,300 hectares) after breaking out on Wednesday.
A group of 98 people in total, including 52 children were evacuated from countries such as Ethiopia, Somalia and Sudan. The refugees had been held in detention in Libya.
About 900 mm of rain has fallen on the southernmost main island of Kyushu since late June, with heavy rain forecast to continue into Thursday.
The man, who was not immediately identified, "is in the hands of the emergency teams" deployed to the tower, which will reopen to visitors as normal early on Tuesday, the company operating the structure said.
The blaze has killed at least 11 people among them five were found in vehicles that were torched by the flames of a ferocious wildfire.
South Carolina's Governor Henry McMaster ordered the evacuation of much of the state's coast as people wait for Florence to hit. The hurricane has been downgraded from a Category 4 storm to Category 2, but residents are still anxious.
Jordanian Foreign Minister Ayman Safadi said out of the 800 cleared for the pull out, 422 White Helmets volunteers and their families have been evacuated. The operation has received international praise.
More than 100 buses arrived on Wednesday to transport residents and fighters overnight from the villages to nearby government-held territory in Aleppo province.
Emergency services scrambled to evacuate areas around the Fuego volcano, which erupted again with the death toll having climbed to 75. Almost 200 people have been reported missing.
Hawaii’s erupting Kilauea volcano threatened highways after two more fissures opened in the past 24 hours, bringing the total to 19.
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