Bank of Japan is widely expected to keep its ultra-loose monetary policy unchanged on Thursday.
Japan issued a tsunami advisory Tuesday after a strong 6.4-magnitude earthquake hit the northwest of the country.
The ministry would consider imposing another social media restriction should the public turn agitated during the hearing.
Security remained tight with scores of uniformed police with helmets and shields in the area.
The loan is expected to benefit about 12.5 million people living in 13 cities across the country.