Nepal quake: where and how tremors were felt

A high-intensity quake measuring 7.5 on the Richter scale on Saturday rocked many parts of East and North India, including Delhi, the epicentre of which was in Nepal.

Summary:

A look at how the quake was felt at major cities in India and Nepal:

A visualisation of how the intensity varied with distance from epicentre:

Glossary:

Aftershocks:

Aftershocks are earthquakes that follow the largest shock of an earthquake sequence. They are smaller than the mainshock and within 1-2 rupture lengths distance from the mainshock.

Epicentre:

The epicentre is the point on the earth's surface vertically above the hypocenter (or focus), point in the crust where a seismic rupture begins.

Hypocentre:

The hypocenter is the point within the earth where an earthquake rupture starts. The epicentre is the point directly above it at the surface of the Earth.

Richter scale:

The Richter magnitude scale is a mathematical device to compare the size of earthquakes. The magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs.

Source: U.S. Geological Survey