Daily Meteor Impact Census
Date: Spring 2012
How many meteors hit earth each day?
About 100 to 200 tons of material hit per day. Most are small particles. The range of debris quantity and size varies greatly.
These references may help!
Peter E. Hughes, Ph,D.
Good question. Many millions strike the Earth, but only an handful survive the plunge through Earth's atmosphere. Earth gains several tons of weight each day from the ones that hit.
David H. Levy
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Update: June 2012