
Earthquakes are measured using observations from seismometers Earthquakes are caused mostly by rupture of geological faults, but also by other events such as volcanic activity, landslides, mine blasts, and nuclear tests. An earthquake's point of initial rupture is called its focus or hypocenter. The epicenter is the point at ground level directly above the hypocenter. If you have any news of the loss want to convey someting about this Earthquake in Delhi / North India if you can write the your opinion or comments below for others to read and respond.