The earthquake that hit the city registered 3.2 on the Richter scale.
The small earthquakes have registered between 2.0 and 3.0 on the Richter scale.
It is believed that the earthquake would have registered between about 5 and 6 on the current Richter scale.
The 1940 earthquake registered a magnitude of 7.4 or 7.7 on the Richter scale.
The earthquake registered 9.0 in moment magnitude and was the biggest in five decades.
It is estimated that at ground zero the earthquake would have registered 10.2 on the Richter scale.
Last month a moderately powerful earthquake, registering 5.3, rumbled across the city.
The Indian authorities said the earthquake had registered 6.9 on the commonly used scale of magnitude, the strongest here since 1950.
Experts have warned that an even larger earthquake, registering 8.8, will hit Padang in the coming years.
The earthquake that occurred Tuesday registered 6.9 on the Richter scale.