[originaltext] An earthquake measuring 6.7 on the Richter scale has hit nort

An earthquake measuring 6.7 on the Richter scale has hit northeast India, near its borders with Myanmar and Bangladesh, killing at least nine people. The quake hit at 4:35 am local time about 29 km northwest of Imphal, the capital of Manipur state, according to the US Geological Survey. Strong quakes have been felt across the region. The earthquake was originally reported to have measured 6.8 on the Richter scale. India’s Meteorological Department said it struck at a depth of 17 km.
    The earthquake cracked walls and a newly-built six-storey building in Imphal collapsed, police said. Other buildings were also reported to have been damaged. At least six people have been killed in Manipur and more than 30 injured, the Press Trust of India news agency reported. In the neighbouring Bangladesh, three people were reported dead while dozens were being treated in hospital for injuries sustained during the quake. A 23-year-old man died when he suffered a stroke after the quake while two others died of heart attacks, news agency AFP quoted police as saying. A university student, who jumped from a fourth-floor balcony to escape, was among the severely wounded, the agency added.
5. When did the earthquake happen?
6. What do we know about the earthquake from the news report?
7. Why did the 23-year-old man die?