She was accosted on the street of Beirut last week by volunteers cleaning up from the disaster who chanted "revolution" and demanded her resignation.
The announcement comes on the third day of demonstrations in the capital, where protesters have again hurled rocks and dodged tear gas in clashes with security forces.
Demonstrators have clashed with police in Beirut for days, with the anti-government protests calling for punishment and accountability.
Lebanon's cabinet has resigned over the devastating explosion in Beirut last week, the country's health minister has said. The government will then continue in a caretaker capacity until a new one is formed, taking charge of procedural tasks but unauthorized to make important decisions.
Then came Lebanon's worst peacetime disaster, the blast sparked by a pile of ammonium nitrate that had languished in a harborside warehouse for years, which only confirmed the dismal view many Lebanese hold of their leaders, including Diab.
The head of Lebanon's Maronite church meanwhile called on the entire government to step down over the August 4 explosion, a blast widely seen as shocking proof of the rot at the core of the state apparatus.
Reuters News Agency reported that hundreds were converging on a main square where thousands of Lebanese protested on Saturday against a political elite they blame for the country's economic and political woes.
Losses from the blast are estimated to be between US$10 billion to US$15 billion ($14 billion to $21 billion), and almost 300,000 people were left homeless in the immediate aftermath.
"Muslim community of Windsor expresses full solidarity with our brothers and sisters in Lebanon and offer honest condolences and sympathy with the families of the victims", a news release from the WIA states.
The council usually handles top security cases.
The explosion is believed to have been caused by a fire that ignited a 2750-ton stockpile of explosive ammonium nitrate. Public Prosecutor Ghassan El Khoury questioned Maj. Gen.
A Lebanese judge has started questioning authorities in Lebanon's security agencies, including security chief Tony Saliba, according to the state-run National News Agency.
State Security had compiled a report about the dangers of storing the material at the port and sent a copy to the offices of the president and prime minister on July 20. It's you know, you can nearly say how does a country survive such a tragedy?
Some ministers had already resigned over the weekend and Monday while others, including the finance minister, were set to follow suit, ministerial and political sources said. "Truly I don't know".
"The scale of the loss is so vast, it is likely every single person in Lebanon has been touched by this event", said Najat Rochdi, the U.N. Resident and Humanitarian Coordinator for Lebanon.
UN Secretary-General Antonio Guterres told UN member nations the voices of Lebanon's angry people "must be heard".