Question: Which fiery disaster occurred in Ghana in 2015 due to the Accra floods?

Context paragraphs:
1931 China floods: The 1931 China floods or the 1931 Yellow River floods were a series of devastating floods that occurred in the Republic of China.  The floods are generally considered the deadliest natural disaster ever recorded, and almost certainly the deadliest of the 20th century (when pandemics and famines are discounted).  Estimates of the total death toll range from 145,000 to between 3.7 million and 4 million.

Masbrough boat disaster: The Masbrough boat disaster (also known as the Rotherham boat disaster and the Masbrough ship disaster) was a disaster that occurred in a boatyard on the River Don in Masbrough, South Yorkshire, now a suburb of Rotherham, on 5 July 1841.  The disaster occurred during the launching of a new boat: sixty-four people, mainly children were drowned in the river.

2015 Accra floods: The 2015 Accra floods resulted from heavy continuous rainfall in Accra, the largest city in Ghana.  The rain started on 1 June 2015.  Other causes of this flood is as a result of the improper planning of settlement in Accra, choked gutters which block the drainage system and a few other human factors.  The floods have resulted in heavy traffic on the roads in the city and also a halt in commercial activities as markets were flooded and workers trapped.  Mayor of Accra Metropolitan Assembly, Alfred Oko Vanderpuije described the flooding as critical.  At least 25 people have died from the flooding directly, while a petrol station explosion caused by the flooding killed at least 200 more people.

West Pharmaceutical Services explosion: The West Pharmaceutical Plant explosion was an industrial disaster that occurred on January 29, 2003 at the West Pharmaceutical Plant in Kinston, North Carolina, United States.  Six people were killed and thirty-six people were injured when a large explosion ripped through the facility.  Two firefighters were injured in the subsequent blaze.  The disaster occurred twelve years and 170 mi from the 1991 Hamlet chicken processing plant fire, America's second-worst industrial disaster.

2016 Accra floods: The 2016 Accra floods are heavy rainfalls in Accra, the capital of Ghana in June 2016.  The flood began on June 9, 2015.  As of June 15, 2016, at least 10 people have been killed.

Accra Sports Stadium disaster: The Accra Sport Stadium disaster occurred at the Ohene Djan Stadium, Accra, Ghana on May 9, 2001.  It took the lives of 127 people, making it the worst stadium disaster to have ever taken place in Africa.

Marcopper mining disaster: The Marcopper Mining Disaster occurred on March 24, 1996, on the Philippine island of Marinduque, a province of the Philippines located in the Mimaropa region.  It remains one of the largest mining disasters in Philippine history.  A fracture in the drainage tunnel of a large pit containing leftover mine tailings led to a discharge of toxic mine waste into the Makulapnit-Boac river system and caused flash floods in areas along the river.  One village, Barangay Hinapulan, was buried in six feet of muddy floodwater, causing the displacement of 400 families.  Twenty other villages had to be evacuated.  Drinking water was contaminated killing fish and freshwater shrimp.  Large animals such as cows, pigs and sheep were overcome and killed.  The flooding caused the destruction of crops and irrigation channels.  Following the disaster, the Boac River was declared unusable.

Bedford Colliery disaster: The Bedford Colliery disaster occurred on Friday 13 August 1886 when an explosion of firedamp caused the death of 38 miners at Bedford No.2 Pit, at Bedford, Leigh in what then was Lancashire.  The colliery, sunk in 1884 and known to be a "fiery pit", was owned by John Speakman.

2015 Accra explosion: On June 4, 2015, an explosion and a fire occurred at a petrol station in Ghana's capital city Accra, killing over 250 people.

Somali Flash Floods: The Somali Flash Floods are a group of flash floods that occur annually in the country of Somalia.  The floods are a result of the Gu rains, which is the monsoon like rainfall that comes every March in the region.  Every year, in the period shortly after the Gu rains from March to July, flash floods hit the lower Jubba and lower Shabelle regions of Somalia.  These flash floods cause devastation and destruction, causing casualties and displacement.  In recent years, the effects of the floods have increased compared to past floods.  This is due to Somali population increase and continuing lack of preparation mechanisms, and they may be exemplified by meteorological reasons as well.

Supporting paragraphs: 2015 Accra floods 2015 Accra explosion
Answer: a petrol station explosion